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Keto continues to be adopted by dieters (mostly) in hopes of losing weight. But the keto diet, formally known as the ketogenic diet1, was not initially introduced as a weight loss or health-promoting eating pattern. Instead, Russel Wilder first used the ketogenic diet to treat epilepsy in 1921—over a century ago! But as diets come and go and come again, keto re-emerged and spurred the food and supplement industries to introduce “keto-friendly” products to the masses. 

As a high-fat and low-carb eating plan, however, where do the best protein powders come in? Well, protein is still an essential macronutrient on a keto diet and shouldn’t be overlooked. So if you’re following a keto diet, these best keto protein powder supplements are calling your name.

And even if you’re not on team keto, these low-carb and low-sugar protein powders might still have you cheering! We asked registered dietitians, competitive weightlifters and triathletes, and certified nutrition coaches to research and test more than a dozen keto protein powders before landing on their top 10 picks. We looked at factors like:

  • Formulation: Does it have ample protein? Is it low in carbs and follows the keto guidelines?
  • Ingredients: Does every ingredient serve a purpose? Are there any potentially harmful ones?
  • Third-party testing: Is it clear of harmful or banned substances?
  • Price: Is it affordable?
  • Taste: While subjective, we want to know what our testers and other customer reviewers thought.

We also worked with an independent accredited lab, Ellipse Analytics, to test and rate more than 150 protein powders for purity and label accuracy. We then scored them and chose to feature products that ranked in the top 50% of the samples tested. You’ll see those products designated below.

Medical disclaimer: This article is intended for educational and informational purposes only. It is not intended as a substitute for medical advice. For health advice, contact a licensed healthcare provider.

Best Keto Protein Powder

In the Know with Keto — What is the Keto Diet?

Because “keto” continues to be trendy in the nutrition sphere, let’s make sure we are on the same page about what it is. Keto—short for the ketogenic diet—is a high-fat eating pattern with moderate protein and very low carbohydrates. 

Below captures the most recent Dietary Guidelines for Americans (DGAs) macronutrient breakdown—carbohydrates, protein, and fat—and compares it to a general keto diet split. The grams of carbs, fat, and protein are also provided to give greater context and are based on a 2,000-calorie daily diet.

DGAsKeto
Daily %Grams/DayDaily %Grams/Day
Carbs45-65%225-325 g5-10%25-50 g
Protein10-35%50-175 g30-35%150-175 g
Fat20-35%44-78 g55-60%122-133 g

Now this begs the question, why flip the nutritional script? Well, the point of going keto is to get into the state of ketosis. 

Your body is forced to undergo adaptive changes when it lacks its preferred energy source, glucose (or sugar). During ketosis, the body breaks down fat into ketone bodies2 that are used for energy and may benefit the brain, metabolic health, and more. 

The keto diet is often adopted in hopes of losing weight. It certainly can spur weight loss, particularly water weight, in the initial days when the body burns off its glycogen (or stored glucose) and any water it’s holding onto—aka carbohydrates.

To come full circle, being in and sustaining a state of ketosis ultimately requires a high-fat, low-carb diet. And whereas protein might be less talked about, it’s still essential when following a keto diet! 

So whatever your reason for starting a keto lifestyle, we’ve got you covered with the best keto-friendly protein powders on the market. 

RELATED: Best Low-Carb Protein Powders

Best Overall Keto Protein Powder: XWERKS Grow

Good for: Anyone searching for a premium low-carb protein powder

Best Overall

XWERKS Grow

GGR Score: 4.8 starstarstarstarstar

Product Highlights

  • Natural, healthy, convenient, and tasty way to get protein
  • Uses a microfiltration process to preserve critical biological nutrients in raw whey
  • Removes unwanted fats and carbohydrates
  • All flavors are naturally sweetened
  • Nicely flavored, easily digested, and low-carb protein powder
  • Promotes muscle growth and repair

Pros & Cons

Pros

  • Keto-friendly
  • Naturally sweetened
  • Sourced from naturally raised grass-fed cows
  • Has a smooth and creamy taste
  • Soy- and gluten-free
  • Convenient

Cons

  • Expensive

Bottom Line

XWERKS Grow whey protein isolate provides a solid blend of amino acids, vitamins, and minerals in a whey protein isolate. Our testers have said this is one of the best-tasting protein powders they've tried, and they've had more than 100.

Xwerks Grow claims their low-carb formula is perfect for those following the keto diet. And with only 1 gram of carbs  per serving, we’d have to agree it’s an overall great product for anyone following a keto or low-carb diet. 

The Xwerks Grow formula contains 25 grams of grass-fed whey protein isolate per serving. The grass-fed whey is sourced from New Zealand cows, so you need not worry about any hormones, antibiotics, or pesticides passed onto you. 

GGR performance editor and certified nutrition coach Anthony O’Reilly says it’s a 5 out of 5 on taste, comparing the chocolate flavor to a “protein Yoohoo.” The solubility also gets a 5 out of 5, Anthony says. “The powder is very fine,” he notes, “which makes it easy to mix it into the liquid of your choice. I recommend adding it to iced coffee.”

xwerks grow

Whey protein isolate is considered a complete protein because it provides all essential amino acids. Unlike non-essential amino acids, essential amino acids must be obtained from high-protein foods or protein supplements. 

Whey is also rich in branched-chain amino acids3 (BCAAs), which may enhance post-exercise muscle recovery and function. It’s particularly a great source of the branched-chain amino acid (BCAA) leucine that assists in protein synthesis.

The whey-based protein powder comes in four flavor options—Chocolate, Peanut Butter, Strawberry, and Vanilla—free of artificial sweeteners, artificial flavorings, artificial dyes, soy, and soy gluten. Instead, each flavor is formulated with more natural ingredients such as cocoa, vanilla, and stevia while being free of artificial sweeteners, artificial flavorings, artificial dyes, soy, and gluten.

All that said, Xwerks is one of the best protein powders for weight loss, notably voted as the best tasting. But if you’re not completely satisfied, Xwerks offers a 100% money-back guarantee.

Learn all there is to know about XWERKS Grow in our XWERKS Grow whey protein review.

Main Protein Source(s)100% Grass-Fed Whey Protein Isolate
Macros Per Serving1 g carbs, 25 g protein, 0 g fat per 1 scoop (30 g) serving (Chocolate) 
Flavor Option(s)Chocolate, Peanut Butter, Strawberry, Vanilla
Cost$59.00/30 servings = $1.97/serving

Best Budget Keto Protein Powder: Jacked Factory Authentic ISO

Good for: Those searching for a low-carb and cost protein powder without compromising quality

Best Budget

Jacked Factory Authentic ISO Grass-Fed Whey Protein

GGR Score: 4 starstarstarstarstar

Product Highlights

  • Three flavors
  • 25g per scoop
  • 110 calories per serving
  • Under 1g of fat per scoop

Pros & Cons

Pros

  • 25g of protein
  • Only 110 calories per scoop
  • No added sugars
  • Under 1g of fat per serving

Cons

  • Reviewers state the taste is not the best
  • Doesn't mix well

Bottom Line

A protein powder that comes very close to being pure protein, at a reasonable price.

Jacked Factory Authentic ISO is a grass-fed whey protein isolate that only costs $1.33 per scoop—or $1.13 per scoop if you select their subscribe and save option for 15% off (and free shipping)! In either case, it gets a 5 out of 5 from us for being an affordable keto protein supplement.

GGR senior editor and certified personal trainer Nicole Davis likes the Chocolate Peanut Butter flavor. “It’s an almost creamy consistency mixed with milk, and I like to throw a few ice cups in it and blend it up for a sweet treat,” she says.

A person is shown dumping a scoop of Jacked Factory Authentic Iso Whey Protein powder into a shaker glass of water.

The Jacked Factory Authentic ISO formula provides 25 grams of protein sourced from ultra-pure, grass-fed whey protein isolate. It also contains only 1 gram of carbs and 0.5 grams of fat, making it suitable for keto and low-carb dieters. 

The low-carb protein powder also mainly contains natural ingredients—like Himalayan rock salt and stevia extract. However, and while more of a personal preference, we still need to mention it is formulated with artificial flavors and the artificial sweetener sucralose.

But ending on a positive note, the grass-fed whey protein isolate is manufactured in the U.S. in a cGMP (Current Good Manufacturing Practice) and FDA (Food and Drug Administration)-registered facility. And if you aren’t satisfied with the product for whatever reason, Jacked Factory offers a 100% hassle-free, money-back guarantee. 

Our Jacked Factory Authentic Iso Whey review will provide more info if you’re curious about this product.

Main Protein Source(s)100% Grass-Fed Whey Protein Isolate
Macros Per Serving1 g carbs, 25 g protein, 0.5 g fat per 1 scoop (30.1 g) serving (Vanilla) 
Flavor Option(s)Chocolate Peanut Butter, Vanilla, Vanilla Oatmeal Cookie
Cost$39.99/30 servings = $1.33/serving 

Best Whey Isolate Keto Protein Powder: Transparent Labs Whey Protein Isolate

Good for: Low-carb and keto dieters looking for a high-quality whey protein isolate (offered in many flavors!)

Best Whey Isolate

Transparent Labs 100% Grass-Fed Whey Protein Isolate

GGR Score: 4.2 starstarstarstarstar

Product Highlights

  • High-quality whey protein isolate
  • 28 grams of protein per serving
  • 15 flavors to choose from
  • $1.99 per serving

Pros & Cons

Pros

  • High-quality protein
  • No artificial sweeteners, food dyes, or preservatives
  • Lots of flavors to choose from
  • Good customer reviews
  • Whey isolate may be easier to digest for some people

Cons

  • Price per serving on the high end

Bottom Line

Our testers love Transparent Labs 100% Grass-Fed Whey Protein Isolate because we know exactly what's in it, and almost every flavor we've tried is a 5 out of 5 on taste. Yes, it's a little more expensive than other protein powders but you get what you pay for.

Transparent Labs offers another grass-fed whey protein isolate, and a mighty one at that! In fact, we chose Transparent Labs whey protein isolate as one of our best protein powders, primarily thanks to its commitment to quality and transparency. (Yep, you can even view their Certificates of Analysis and Composition through their official website.)

Certified nutrition coach and GGR performance editor Anthony O’Reilly tried the limited-edition Peppermint Hot Chocolate around Christmas and was a big fan of the flavor and texture, both of which he gave a 5 out of 5.

transparent labs whey isolate being scooped

“It tastes as if you dropped a candy cane into a cup of hot chocolate and added protein to it,” he says. “The powder easily mixes into the liquid of your choice and leaves behind no clumps—this is one of the smoothest protein powders I’ve ever had.” All you need is a Yule log to complete the scene.

Third-party lab test results for Transparent Labs Whey Isolate Protein Powder
GGR collaborated with Ellipse Analytics, an accredited third-party lab, to test more than 150 protein powder products. We screened for dozens of factors and rated each product against its peers. Excellent indicates the top 10% of products; Above Average is the top 25% of products; and Meets Standard is the top 50% of products tested.

In terms of quality, Transparent Labs claims its 100% grass-fed whey protein isolate as one of the cleanest proteins on the market. And with each scoop serving, you’ll gain 28 grams of pure protein—produced by American cows that are hormone-free and naturally fed with access to green pastures—with only 1 gram of carbs and zero grams of fat. 

In GGR’s own testing of more than 150 protein powders in conjunction with independent accredited lab Ellipse Analytics—where we tested both protein content and purity—Transparent Labs whey isolate received an overall rating of Above Average. This means it ranked in the top 25% of products we tested. You can learn more about what we tested for in our Independent Supplement Testing Glossary.

Back to its ingredients though, this formula is free of artificial sweeteners, coloring, and preservatives. Transparent Labs whey-based protein also comes in eight tempting flavors—like Cinnamon French Toast, Oatmeal Chocolate Chip Cookie, and Vanilla Peanut Butter—that contain more natural ingredients like cocoa powder, peanut flour, and stevia. 

Read more in our full Transparent Labs protein review.

Main Protein Source(s)Grass-Fed Whey Protein Isolate
Macros Per Serving1 g carbs, 28 g protein, 0 g fat per 1 scoop (32.96) serving (Milk Chocolate)
Flavor Option(s)Chocolate Peanut Butter, Cinnamon French Toast, French Vanilla, Milk Chocolate, Mocha, Oatmeal Chocolate Chip Cookie, Strawberry, Vanilla Peanut Butter
Cost$59.99/30 servings = $2.00/serving

Best Plant-Based Keto Protein Powder: Ritual Essential Daily Shake 18+

Good for: Those who want a vegan or vegetarian option for a keto-friendly protein powder

Best Plant-Based

Ritual Essential Protein Daily Shake 18+

GGR Score: 4.4 starstarstarstarstar

Product Highlights

  • Organic pea protein powder
  • 20 g of protein per serving
  • Formulated to support adults 18-49
  • Third-party tested
  • 150 mg of choline per serving 

Pros & Cons

Pros

  • Soy-free, gluten-free, and vegan-friendly
  • No artificial sweeteners
  • Complete amino acid profile
  • Non-GMO
  • USA-grown peas

Cons

  • Only comes in one flavor
  • Price per serving is on the high end

Bottom Line

Ritual’s Essential Protein Daily Shake 18+ is specifically designed for 18-to-49 year-olds with 20 grams of protein per serving and 150 milligrams of chlorine (to support brain and nervous system function). This protein powder from Ritual is third-party tested and Informed Sport Certified, which means this formula has been screened for over 250 banned substances.

Scoring a perfect 5 out of 5 for its formulation on our ratings metrics, the Ritual Essential Daily Shake 18+ is our pick for the best plant-based keto protein powder. You can read all about it in our comprehensive Ritual protein powder review, but we’ll give you the cliff notes here.

While you’ll see on the label that it has 3 grams of carbs, those grams are all fiber; there is no sugar added in this shake, which makes it ideal for those adhering to a keto diet.

There is currently only one flavor option for this protein powder: vanilla. GGR’s Head of Content and certified personal trainer Kate Meier has used Ritual protein about a dozen times, and she gives it a 4 out of 5 for taste. She recommends blending it in a smoothie rather than drinking it with water.

ritual essential shake 18+ in blender next to bag

“I tried this in a blender cup with water, and in a smoothie with strawberries and blueberries. Even just with water, this has a nice taste. It’s not super plant-y or hemp-y like some plant-based proteins are,” she says. “There is a very slight chalky aftertaste with water, but I could drink this with water alone and be fine with it. I prefer it in a smoothie, thought. I typically mix it with water, blueberries, and strawberries. While the taste is definitely detectable, it is not overly strong.”

There is a lot to like about this vegan-friendly powder, which features 20 grams of protein, which is sourced from peas. Pea protein is considered a complete protein, meaning it has all the essential amino acids. However, as Amanda Capritto, GGR senior writer and certified sports nutrition coach points out, peas are very low in the amino acid methionine. Fortunately, Ritual has added 493 milligrams of l-methionine to balance out that deficiency.

Other ingredients in Ritual Essential 18+ include choline, calcium, and iron.

One thing Kate noted is the closing mechanism on the bag. “It’s almost like a Velcro, and the protein gets stuck in it and makes it hard to seal,” she says.

inside ritual essential daily shake 18+ protein bag

Ritual Essential Daily Shake 18+ is third-party tested through Informed Sport, which is something we like to see on supplements. This indicates to us that the label is accurate and we can trust that the brand has been transparent about what’s in the bag.

Another important callout: This protein is over $2.50 a serving. We tend to see higher prices on plant-based proteins that are third-party tested, but this is one of the most expensive powders we have ever tested and recommend. Ritual offers a few ways to save, such as referring someone, bundling and saving, and discounts around holidays.

To purchase, you have to sign up (no “continue as guest” option here, which is a huge bummer), and you have to subscribe to receiving the product monthly, though you can change or cancel this at any time. Shipping is always free for subscribers.

Main Protein Source(s)Organic pea protein
Macros Per Serving3 g carbs (all fiber), 20 g protein, 2 g fat per 1 scoop (30 g) serving
Flavor Option(s)
Cost$40/15 servings = $2.66/serving

Best-Tasting Keto Protein Powder: Momentous Grass-Fed Whey

Good for: Keto adherents looking for a great-tasting protein powder that’s high on taste and low-carb

Best Tasting

Momentous Grass-Fed Whey

GGR Score: 4.09 starstarstarstarstar

Product Highlights

  • Grass-fed whey protein isolate 
  • Cold-pressed with a micro-processing filtration 
  • ProHydrolase enzyme blend 
  • Protein is sourced from Irish cows

Pros & Cons

Pros

  • Clean
  • Third-party verified
  • Mixes well
  • High-quality
  • Bioavailable

Cons

  • Unflavored may clump when mixing
  • Expensive

Bottom Line

If you are willing to pay a premium price for a high-quality grass-fed whey protein, the Momentous brand is a solid choice.

Several GGR expert testers have tried Momentous grass-fed whey in both chocolate and vanilla and agree it’s one of the best-tasting proteins on the market, particularly when mixed with milk. There’s no artificial taste but the flavor is rich, and it “goes down really easily,” according to one of our testers, Hunter, who is a member of GGR senior director of fitness Kate Meier’s weightlifting team. 

We rated Momentous as a 4 out of 5 in taste—docking one point because it tastes just mediocre with water—and a 5 out of 5 in solubility. 

Momentous essential whey protein protein powder lab test scorecard
GGR collaborated with Ellipse Analytics, an accredited third-party lab, to test more than 150 protein powder products. We screened for dozens of factors and rated each product against its peers. Excellent indicates the top 10% of products; Above Average is the top 25% of products; and Meets Standard is the top 50% of products tested.

Momentous whey gets a solid 5 out of 5 in formulation, too: There are 3 grams of carbs per serving, 2 coming from fiber, as well as 20 grams of protein, so it’s a keto-friendly protein powder option for those cutting carbs. 

We also like that Momentous grass-fed whey is third-party tested by NSF, which means it’s safe for athletes to take and has been confirmed free of banned substances. 

GGR also did its own testing of more than 150 protein powders in conjunction with independent accredited lab Ellipse Analytics, where we tested both protein content and purity, and Momentous grass-fed whey received an overall rating of Meets Standard. This means it ranked in the top 50% of products we tested. You can learn more about what we tested for in our Independent Supplement Testing Glossary.  

Our major downside of this protein powder is the cost: At about $2.40 per serving, it’s an expensive option, which is why we rated it a 1 out of 5 in this category. “It’s great-tasting with quality ingredients, but at $65 per bag, many people won’t be able to swing it,” our tester says. 

Read more in our Momentous grass-fed whey whey protein review.

Main Protein Source(s)Whey protein isolate
Macros Per Serving3 g carbs, 20 g protein, 1.5 g fat
Flavor Option(s)Unflavored, Chocolate, Vanilla
Cost$58/20 servings = $2.41 per serving

Best Egg White Keto Protein Powder: Naked Nutrition Naked Egg

Good for: Those who want to crack into a reputable egg white protein

Best Egg White

Naked Nutrition Naked Egg

GGR Score: 3.8 starstarstarstarstar

Product Highlights

  • Egg white protein powder 
  • 25 g of protein per serving 
  • No additives
  • Only 2 ingredients  
  • Soy- and GMO-Free 
  • Made in the USA

Pros & Cons

Pros

  • 25 g of protein per serving
  • No additive or artificial sweeteners
  • Dairy-free protein powder
  • Can be used for baking and protein shakes
  • Paleo-friendly

Cons

  • Mixed reviews on taste
  • Customers complained about packaging
  • 1 serving is 2 scoops

Bottom Line

Naked Egg is a protein powder option for people with dairy and lactose intolerances. It provides 25 grams of protein per serving.

While we’re well-versed in whey and plant-based protein powders, Naked Nutrition’s Naked Egg protein is a relatively new one for us to crack. But as you can already guess, it’s an egg-cellent low-carb source of protein.

Competitive weightlifter and GGR head of content Kate Meier ended up giving this keto-safe protein powder a 3 out of 5 on taste, but only because she didn’t detect any “egg” flavor—which is a good thing. “First, I blended this with strawberries, banana, and Lactaid. You can taste a flavor there; it’s hard to pinpoint what it is. It’s almost like the egg protein muted the strawberry and banana flavor. Then I tried it with a cup of hot, black coffee, which I threw in the blender, making the coffee a little frothy. I actually liked it better this way! The strong coffee taste covers a lot of the egg taste.” 

Naked Nutrition’s egg white protein powder provides 25 grams of protein per 2-scoop serving sourced by non-GMO chicken eggs. Egg white protein is also considered a complete protein source and is rich in all essential amino acids, including branched-chain amino acids—5.6 grams per serving, to be eggs-act.

An image of Naked Egg protein in a shake

While the powder contains zero sugars, it provides 2 grams of natural carbohydrates—yep, eggs contain (very) small amounts of carbs. But also, as a non-flavored option, you needn’t worry about artificial sweeteners. 

Besides the star of the show, the egg white powder is joined with sunflower lecithin to support its solubility. It’s also gluten-free and made in the United States. 

Naked Nutrition also encourages using egg white powder as an egg substitute in baking recipes (keto-friendly, of course) or adding to vegetables and other ingredients for taste. But it can also just be used as a simple protein shake if your palette fancies it.

Main Protein Source(s)Egg White Protein
Macros Per Serving2 g carbs, 25 g protein, 0 g fat per 2 scoop (31 g) serving
Flavor Option(s)Unflavored
Cost$67.99/44 = $1.55/serving

Best Collagen Keto Protein Powder: Transparent Labs Grass-Fed Collagen Hydrolysate

Good for: Supplementing a high-fat, low-carb diet with tissue-repairing collagen

Best Collagen

Transparent Labs Grass-Fed Collagen Hydrolysate

GGR Score: 4.7 starstarstarstarstar

Product Highlights

  • No artificial sweetener, colors, or preservatives
  • Formulated with grass-fed bovine collagen peptides
  • Claimed to help eliminate visible signs of skin aging like sagging and wrinkles
  • Made with minimal ingredients

Pros & Cons

Pros

  • Worldwide shipping
  • A good amount of positive reviews
  • Easily mixable in cold or hot beverages

Cons

  • Only 10 g of protein per serving
  • Low doses of collagen compared to other brands
  • Doesn’t include vitamin C, which can help with absorption
  • Only comes in 1 flavor

Bottom Line

Transparent Labs Grass-Fed Collagen Hydrolysate is a collagen rich in type I and type III collagen peptides made without artificial sweetener, colors, or preservatives.

Transparent Labs has just 2 grams of carbs, and we love the ingredient profile it offers people looking to add collagen to their diet. It provides 11 grams sourced from grass-fed bovine cattle. Sydney Lappe, registered dietitian, points out that it is a good source of types I and III collagen, which are useful in fighting the signs of aging like wrinkly skin, muscle aches, joint pain, and muscle aches. 

Collagen4 is the most abundant protein in the body and is found in the bone, skin, muscles, tendons, cartilage, nails, and other organs. It is used to make connective tissue and acts like glue, connecting other tissues and aiding in their resiliency. Collagen protein is mostly sourced from animal products that contain connective tissue—like animal meat and fish. It’s also formulated into supplements as collagen peptides or hydrolyzed collagen.

There are two flavors Transparent Labs offers: Chocolate, and Unflavored. Amanda Capritto, GGR staff writer and competitive triathlete, tried the Transparent Labs chocolate-flavored collagen a few different ways. She recommends mixing it with something other than water. “It’s not bad, but it kind of tastes like watered down chocolate milk (when mixed with water). I also mixed it with almond milk which significantly improved the taste!”

An image of Transparent Labs Grass-fed collagen hydrolysate

In terms of solubility: “It dissolves so well, it’s scary!” Amanda says, giving it a perfect 5-out-of-5 rating here. “It doesn’t feel grainy and I didn’t even notice any chunks when mixed with plain water. The stuff is virtually unnoticeable when mixed with another powder, like protein powder.”

However, it’s important to note that collagen is not considered a complete protein because it doesn’t contain all nine essential amino acids—explicitly lacking tryptophan. This reinforces the concept of supplements, which are used to supplement a balanced diet: You’ll still need to obtain a variety of high-protein foods to ensure you’re nourishing your body with all essential amino acids. 

Transparent Labs collagen protein lab test scorecard
GGR collaborated with Ellipse Analytics, an accredited third-party lab, to test more than 150 protein powder products. We screened for dozens of factors and rated each product against its peers. Excellent indicates the top 10% of products; Above Average is the top 25% of products; and Meets Standard is the top 50% of products tested.

Also despite the popularity of collagen, the research is mixed regarding its value since it’s so widely abundant in the body. But some research supports collagen’s benefit on skin and joint health, including in athletes.

According to a 2021 meta-analysis published in Amino Acids5, collagen peptide supplementation is most beneficial in improving joint functionality and reducing joint pain with some improvements in body composition, strength, and muscle recovery. However, despite elevating collagen synthesis rates when supplemented with 15 grams per day, it does not significantly impact muscle protein synthesis compared to higher-quality protein sources.

And (most) importantly, every Transparent Labs product is third-party certified through Informed Choice. In GGR’s own independent testing of more than 150 protein powders done with third-party accredited lab Ellipse Analytics, Transparent Labs collagen received a Meets Standard rating, which means that it was in the top 50% of product we tested for label accuracy and purity together. (You can read more about what we tested for in our Independent Supplement Testing Glossary.)

At $1.16 per serving, this is an affordable collagen option. If you subscribe and save, you’ll save 10%. Delivery frequencies range include every 30, 45, or 60 days. Read our full thoughts on this product in our comprehensive Transparent Labs Collagen Hydrolysate review.

Main Protein Source(s)Bovine Hide Collagen Peptides
Macros Per Serving2 g carbs, 10 g protein, 0 g fat per 1 scoop (13.75 g) serving (Unflavored)
Flavor Option(s)Chocolate, Unflavored
Cost$34.99/30 servings = $1.16/serving

Best Vegan Keto Protein Powder: Vega Sport Plant Protein

Good for: Keeping carbs low and protein high while following a plant-based, keto diet

Best Vegan

Vega Sport Premium Protein

GGR Score: 4 starstarstarstarstar

Product Highlights

  • Multi-source vegan protein powder
  • NSF Certified for Sport, vegan, and gluten-free 
  • Includes BCAAs, probiotics, and tart cherry

Pros & Cons

Pros

  • 30 grams of protein per serving
  • Contains all essential amino acids but two that are made by the body
  • 5 flavor options
  • Supports recovery with tart cherry, probiotics, and turmeric extract

Cons

  • Customers share new formula doesn’t blend well
  • Pricey at over $2 per serving

Bottom Line

The Vega Sport Protein has mixed reviews on taste and blendability, but a higher protein content than most other vegan protein powders.

Vega Sport is our top pick as a keto-friendly, plant-based protein powder for a few unique reasons. We’ll first mention that Vega Sport contains 4 grams of carbs and 30 grams of protein per serving, which is a great carb-to-protein ratio. While wholesome plant-based proteins—like beans and lentils—are undoubtedly nutritious, they naturally have a higher carb content. 

Diving into Vega Sport’s amino acid profile, it’s considered a complete protein—meaning it contains all essential amino acids—due to its unique plant-based blend of pea, pumpkin seed, sunflower seed, and alfalfa proteins. We call this out because most plant proteins are incomplete proteins. 

But we also need to mention that while pea protein6 is technically considered a complete protein, it is relatively low in methionine compared to other plant and animal-based proteins. But to rebuttal, some research7 hints that pea protein is just as capable as whey protein for improving body composition. ​​

Certified nutrition coach and GGR performance editor Anthony O’Reilly scored it a 4 out of 5 on taste, and because it mixed easily gave it a 5 out of 5 on solubility. “I went with Mocha, but got more of a brownie flavor (which isn’t a bad thing),” Anthony says. “It’s easy to mix and tasted pretty good when mixed with almond milk or my morning iced coffee.”

The unique vegan protein powder is formulated with tart cherry powder to enhance recovery and probiotics to support gut health. It also contains bromelain8, an enzyme that helps break down protein, and turmeric9, a spice that may reduce inflammation and improve athletic performance. 

Vega Sport Protein

All five of Vega Sport’s flavors—including Berry, Chocolate, and Vanilla—are free of added sugars, artificial sweeteners, and dyes. Instead, Vega Sport relies on natural sweeteners and flavors such as stevia, cocoa powder, and peanut flour.

Regarding certifications, Vega is gluten-free and third-party tested through NSF Certified Sport. And because Vega’s incredibly committed to sustainability, it is certified B-Corp™ and partners with veritree to help foster social and environmental change for the better. 

Learn more about this product with our full Vega Protein Powder review.

Main Protein Source(s)Pea Protein, Pumpkin Seed Protein, Organic Sunflower Seed Protein, Alfalfa Protein
Macros Per Serving4 g carbs, 30 g protein, 3.5 g fat per 1 scoop (41 g) serving (Vanilla) 
Flavor Option(s)Berry, Chocolate, Mocha, Peanut Butter, Vanilla 
Cost$54.99/19 servings = $2.89/serving (Chocolate on Amazon)

Best Grass-Fed Keto Protein Powder: Perfect Keto Whey

Good for: Those who prefer a grass-fed whey protein with bonus MCT oil

Best Grass-Fed

Perfect Keto Keto Whey

GGR Score: 4.3 starstarstarstarstar

Product Highlights

  • Keto-friendly whey protein 
  • Uses grass-fed dairy 
  • Available in 2 flavors

Pros & Cons

Pros

  • Keto-friendly
  • Subscribe and save 20%
  • Whey from grass-fed dairy
  • Doctor-formulated
  • Can be used for baking and protein shakes
  • No artificial fillers, chemicals, or added sugars

Cons

  • Only 15 g of protein
  • Only available in 2 flavors
  • Only available in 1 size, with 20 servings per container

Bottom Line

Perfect Keto can be used as a meal replacement, post-workout shake, or while baking and cooking. It only has 15 grams of protein.

With a name like Perfect Keto, how could this not land on our top keto protein picks? But because we don’t judge a book by its cover, let’s unveil why it made the cut.

The first reason is because of the taste. Certified personal trainer and GGR staff writer Lauren Strong tried the chocolate flavor and gave it a 5 out of 5. “This is the ultimate dark chocolate lover’s protein powder,” Lauren says. “It smells like straight-up cocoa powder, however, it has some sweetness to make it drinkable.” She also scored the solubility and digestibility a perfect 5 out of 5.

Perfect Keto Whey 2

Perfect Keto is marketed as a grass-fed whey protein meal replacement that provides 100 calories, 15 grams of protein, 4 grams of carbohydrates, and 4 grams of fat. I wouldn’t say that a 100-calorie protein shake is a meal replacement, but it could “hold you over until your next meal,” as Perfect Keto’s site mentions. 

The Perfect Keto powder specifically contains whey isolate from grass-fed dairy and coconut oil-derived medium-chain triglycerides (MCTs), a unique type of fatty acids metabolized faster than other dietary fats. Research10 suggests that MCTs can help induce ketosis without the need for a traditional ketogenic diet or prolonged fasting, while also being explored for weight control, brain health, and more. 

Also according to a 2018 study published in the Journal of Nutrition and Metabolism11, MCTs might help reduce the adverse effects of keto-induction—known as the “keto flu”—and the tolerability of a very low-carb diet. The keto flu12, a common side effect of the body adapting to a high-fat and low-carb diet, can cause unpleasant symptoms like fatigue, gastrointestinal discomfort, dizziness, and brain fog. 

Perfect Keto comes in two flavors—Chocolate and Vanilla—naturally flavored and sweetened with stevia. Along with being keto-friendly, Perfect Keto is gluten-free and third-party tested to meet (and said to exceed) quality standards set by the FDA.

Main Protein Source(s)Grass-Fed Whey Protein Isolate
Macros Per Serving4 g carbs, 15 g protein, 4 g fat per 1 scoop (23.7g) serving (Vanilla)
Flavor Option(s)Chocolate, Vanilla
Cost$43.99/20 servings = $2.20/serving

Best Unflavored Keto Protein Powder: Klean Athlete Klean Isolate

Good for: Low-carb dieters seeking a sneaky and klean protein boost

Best Unflavored

Klean Athlete Klean Isolate

GGR Score: 4.2 starstarstarstarstar

Product Highlights

  • 20 g of protein per serving 
  • NSF-certified for sport: no banned substances and product matches what is on the label 
  • Gluten-free, GMO-free, and no artificial coloring, flavoring, or sweeteners 
  • Available in 4 flavors 

Pros & Cons

Pros

  • NSF-certified for sport
  • Available in single-serving sachets
  • No artificial flavor, color, or sweeteners
  • Available in 4 flavors, including unflavored

Cons

  • 20 g of protein per serving
  • Limited reviews
  • Not widely available in stores

Bottom Line

Klean Athlete Klean Isolate is a clean and transparent protein option that is NSF-certified for sport.This supplement is for people that are willing and able to spend extra money to know exactly what is in their supplements.

If you’re looking for a “klean” and unflavored product, Klean Athlete Klean Isolate is it! It’s an unsweetened whey protein isolate, making it a great option to sneak into low-carb beverages and recipes.

Caine Wilkes, GGR staff writer and professional weightlifter who competed in the 2020 Tokyo Olympics, thought it was perfect for mixing with shakes and smoothies. “Mixed just with water to see how unflavored it was, and it’s probably the most unflavored protein I’ve had. I could tell it wasn’t just water I was drinking, but it didn’t add anything but a slight protein taste.” The “slight protein taste” is what brought the taste score down to a 4 out of 5, but it received a perfect 5 out of 5 for solubility and digestion.

RELATED: Klean Creatine Review

The keto-friendly protein powder provides 20 grams of protein per serving and only 1 gram of carbohydrate. It’s also rich in all essential and branched-chain amino acids to support athletic performance and recovery.

Klean Isolate Protein 4

Klean Athlete Klean Isolate undergoes rigorous third-party testing through NSF Certified for Sport, which especially gives athletes peace of mind knowing that the supplement is free of any banned substances. Klean also has an athlete-designed consumer site packed with resources and exclusive offerings like student discounts. 

Also because Klean stands for clean, their products are non-GMO, gluten-free, and made without artificial coloring, flavoring, and sweeteners. And to protect and preserve the planet’s natural beauty, Klean operates with sustainability and responsibility on top of my mind. 

If you’d prefer a flavored option, you can grab the protein in Strawberry. It also provides 20 grams of protein but with 2 grams of carbohydrates. However, it’s also a “klean” product formulated with natural ingredients—like natural flavors, stevia, monk fruit, and beet powder for color.

Main Protein Source(s)Whey Protein Isolate
Macros Per Serving1 g carbs, 20 g protein, 0 g fat per 1 scoop (22.3 g) serving (Unflavored)
Flavor Option(s)Unflavored (and a new Strawberry option)
Cost$57.40/20 servings = $2.87/serving

Best Pea Keto Protein Powder: Sunwarrior Protein Warrior Blend

Good for: Anyone searching for an appealing low-carb, pea-based protein

Best Pea

Sunwarrior Warrior Blend Protein Powder

GGR Score: 3 starstarstarstarstar

Product Highlights

  • 7 great flavors, including unflavored option
  • Plant-based, gluten-free, kosher, and vegan 
  • 16 grams of protein per serving
  • For muscle building, repair, and meal replacement
  • Certified organic and non-GMO

Pros & Cons

Pros

  • 0 grams of net carbs and only 90 calories
  • Container made from 100% recycled and recyclable materials
  • Includes a detailed amino acid profile
  • A plant-based protein made from peas and hemp

Cons

  • Only 17 g of protein per serving
  • Stevia can cause GI distress for some people
  • Some reviewers do not enjoy the taste

Bottom Line

With 4.5 stars and over 12,000 reviews, this product speaks for itself. Sunwarrior has created an affordable, delicious, inclusive, and adequate protein powder you’ll love.

Sunwarrior Protein Warrior Blend is a low-carb, pea-based protein powder that provides 16 grams of protein and 2 grams each of carbs and fat. It also is formulated using a proprietary blend, which we often discourage, so let’s chat about it. 

OK, here’s the thing about proprietary blends: They’re a collection of ingredients often unique to a particular product. The amounts of each ingredient are not always listed, which makes it tricky to know what’s exactly in it and the amounts used. 

However, the ingredients of Sunwarrior’s proprietary blend are listed—Organic Pea Protein, Organic Hemp Seed Protein, Organic Goji Berry—and the amounts of each are unknown to the naked eye. But because Sunwarrior presents an itemized amino acid profile, we can at least make a strong, educated guess that it’s a complete protein and provides all essential amino acids. 

Competitive weightlifter and GGR head of content Kate Meier scored this protein powder’s taste and solubility a 3 out of 5. “You can tell it’s plant-based because it has that typical plant-protein taste,” she says. “The chocolate flavor does come through, but the hemp flavor is stronger.” When it comes to how well it mixes into liquid, Kate says, “It’s a little grainy, but overall mixes well enough. No clumps.”

Hemp seed is another great source of protein, even containing almost as much as soybean. It also includes all essential amino acids and high arginine levels, which aids in nitric oxide production and may help improve blood pressure and athletic performance. What’s more, nitric oxide production is at the core of some of the best stim-free pre-workouts

But the protein content is not the only impressive nutrient in hemp seeds, as it’s also rich in omega-3 and omega-6 fatty acids in a 3:1 ratio. Research13 suggests that a 2-3:1 ratio is best for suppressing inflammation in those with rheumatoid arthritis. An overall lower ratio is also most desirable for reducing the risk of heart disease, cancer, and other chronic diseases. 

Hemp seed also provides a robust micronutrient profile—including vitamin E, phosphorus, magnesium, iron, and zinc. Case in point, Sunwarrior’s vegan powder provides 25% of iron’s daily value recommendation! 

Goji berries14 are also incredibly unique, as they are one of the only fruits abundant in essential amino acids. And not to mention, goji berries are packed with antioxidants, vitamins, and other micronutrients that may reduce inflammation and improve overall health. 

Sunwarrior provides MCT oil from coconut that may positively influence ketone production, cognition, and satiety. 

Sunwarrior contains non-GMO ingredients and is certified USDA Organic, which denotes that the ingredients are grown and processed according to federal guidelines addressing soil quality, animal raising practices, the use of additives, and other factors. All Sunwarrior products undergo third-party testing in an FDA-registered facility to meet certain purity and safety standards.

We also like the various flavors Sunwarrior offers—like Berry, Chocolate, Maple French Toast—and the option to choose an Unflavored pea-based protein. It also comes in different serving size options, ranging from 7-90 servings in select flavors so that you can order according to your needs and preferences. 

Our Sunwarrior protein review details everything else you’ll need to know about this product.

Main Protein Source(s)Organic Pea Protein, Organic Hemp Seed Protein, Organic Goji Berry
Macros Per Serving2 g carbs, 16 g protein, 2 g fat per 1 scoop (25 g) serving (Chocolate)
Flavor Option(s)Berry, Chocolate, Maple French Toast, Mocha, Pumpkin Spice (seasonal), Unflavored, Vanilla
Cost$40.47/30 servings = $1.35/serving

Other Keto Protein Powder We Researched

No worries if none of the above keto protein powders strike your fancy! We also researched the below options and gave them the GGR green light: 

How We Picked and Tested the Best Keto Protein Powder

Whether reviewing the best squat racks or the best supplement stacks, we take pride in our rigorous selection process. To let you in on our little secret, here’s the inside scoop on how we picked and tested the best keto protein powders:

  • Type of protein: To accommodate a wide variety of dietary restrictions and preferences, such as whey protein powder and plant-based options, we offered a variety in the types of protein we included in our list. 
  • Carb content: Because carbs are the most restricted on the keto diet, all of our top picks contain no more than 4 grams of carbs per serving.
  • Fat sourcing: Fat is the central fixture of a keto diet but not in protein powders, although some products contain them. If fat is added to benefit the product, it’s either sourced from MCT oil or healthy fats—like omegas in a preferable ratio. 
  • Additional ingredients: If other ingredients join in on the protein fun, what’s their purpose? We try to validate the rationale for each extra ingredient and stray away from products rich in fillers, additives, and other unwanted ingredients.  
  • Third-party testing: Since dietary supplements are not approved by the FDA, having an independent third-party lab verify that what’s on the label is what’s in the protein powder is super important, especially for athletes. Transparency also plays a part in this—does the company provide COAs, not use proprietary blends, and generally seem very upfront about what’s used in their protein powder and why?
  • Brand transparency and loyalty: We pride ourselves on our honest reviews, and we build trust in brands that are transparent and loyal, as well. That said, we review the brand behind the product from all angles—like checking out their company’s mission, ensuring customers will have support if needed, and dissecting customer reviews. 
  • Cost: Budgets vary just like dietary preferences and needs, so rest assured we try to provide protein powders with varying price ranges. Most of our picks also offer subscribe and save options and rewards programs, so we recommend taking advantage of those cost-saving opportunities!
  • Solubility: How well does this product dissolve in the suggested amount of liquid? Are there floaties? Is it grainy? Is it super thick or super thin? Does it separate after a few minutes?
Ritual protein getting ready for the blender

Benefits of Keto Protein Powder

Keto protein powder is an excellent option for individuals following a ketogenic diet. Let’s take a peek at the specific health benefits of adding keto protein powder to your ketogenic lifestyle. 

Supports Ketosis

Limiting carbs is necessary for those following a keto diet to stay in ketosis—when the body burns and uses fat for energy. Keto protein powder is naturally a low to no-carb protein source and helps eliminate any guesswork. Protein powders with added MCT oil may further enhance the ability to sustain a state of ketosis. 

Supports Muscle Growth and Recovery

There’s often worry that following a high-fat, very low-carb diet can cause significant muscle loss. Despite these reasonable concerns, especially considering carbs are stored in muscles as glycogen and fuel workouts, there is encouraging research15 that shows a ketogenic diet does not negatively affect strength performance. 

Since protein is a golden ticket to building muscle, adding keto protein powder can help your muscles grow and recover. BUT this is only a significant benefit of protein and protein powder if you commit to a resistance training regimen. 

Aids in Weight Management

Keto on its own is often used to manage weight, and keto protein powder may synergize these efforts. Protein promotes satiety, meaning it can help you feel fuller for longer and control caloric intake. 

Gaining muscle through resistance training can also assist in weight management, since the more muscle you carry, the higher your metabolic rate and daily calorie burn—even at rest!

Controls Blood Sugars

Because the keto diet limits carbs, it’s often used to control blood sugars. A 2020 meta-analysis published in Cureus16 suggests that the keto diet is superior for improving glycemic control and blood lipid levels—like HDL cholesterol known as the “good” kind of cholesterol—for people with Type 2 diabetes. 

Helps Combat Sugar Cravings

Speaking of sugar, a flavorful protein powder can help satisfy sugar cravings without seeking out sugary sweet treats that can keep you out of ketosis. Countless flavor options—like Chocolate, Maple French Toast, Oatmeal Chocolate Chip Cookie, and Strawberry—add a protein boost without worrying about sugars and carbs. 

Offers Mega Convenience

Animal proteins are often staples in a keto diet, but they require proper handling and storage to prevent bacterial growth. Protein powder, on the other hand, is shelf-stable and makes for a great on-the-go post-workout shake.

Supports Overall Good Health

Whether you follow a keto diet or not, getting enough daily protein goes well beyond muscle gains and athletics. Don’t get us wrong, we truly admire and appreciate that, but the benefits of protein also expand to bone, neurological, hormonal, immune, and, really, overall health. 

RELATED: Best Protein Powder for Muscle Gain

Jay Robb Egg White Protein 2

Dosing and Interactions 

How much keto protein powder you should consume is primarily based on your personal dietary needs and health goals. This is because protein recommendations vary based on age, birth sex, activity level, and other factors.

As a general rule, align your daily protein targets with the keto diet’s general protein guideline of 30-35% of your overall calories coming from protein. If you are already meeting those goals, great! If not, you might supplement with a low-carb, keto-friendly protein powder.

Also, keto protein powders are generally considered safe with little risk of interactions. However, especially if you’re taking medication and/or managing a health condition, you should ensure that the protein powder of choice will not lead to any interactions or adverse effects. For instance, whey protein may interfere with the absorption of Levodopa and some antibiotics.

For individualized guidance on your protein needs and possible interactions, it’s wise to consult with a registered dietitian or another healthcare professional. Their expertise can guide you to a safe and effective protein powder that will best align with any dietary restrictions and/or preferences. 

Third-Party Testing

If you’re curious about why we’ve mentioned third-party testing in our reviews, here’s why: dietary supplements are not tightly regulated by the FDA. This means that supplements can enter the playing field, land in your hands, and not even be what they’re marketed to be. 

However, third-party tested products undergo rigorous testing procedures and meet specific quality standards. And overall, the third-party tested products contain what they say they do, whether pea protein isolate, whey-based casein protein, and options far and in between. 

Common third-party verification marks include:

  • National Sanitation Foundation (NSF)
  • NSF Certified for Sport or Informed-Sport
  • Good Manufacturing Practices (GMP)
  • US Pharmacopeia (USP) 

Third-party verifications can also be helpful if you have certain dietary needs, restrictions, and preferences, such as:

  • Certified B-Corporation (Corp)
  • Certified Gluten-Free
  • Certified Kosher
  • Certified Vegan
  • Non-GMO Project Verified
  • USDA Organic

These marks and logos should be visible on the product’s container, although the company’s website should also feature them if you aren’t sure. If you still have questions regarding a supplement’s third-party testing, we encourage you to reach out to the company’s customer service team or go for another supplement showcasing their verifications and certifications. 

Buying Guide: What to Look for in Keto Protein Powder

While our top picks are a great starting point, use these tips to find your match made in keto protein powder heaven: 

  • Dietary restrictions and preferences: Your unique nutritional needs should be at the top of your keto protein powder checklist, primarily if you have known allergies and intolerances. For instance, a plant-based protein powder is a great option for anyone who also follows a vegan diet or is lactose intolerant. 
  • Protein content: Yep, a protein powder should contain, well, protein. Because higher-fat animal meats—such as sirloin and fatty fish—are naturally high in protein, we recommend finding a protein powder to match your intake needs best or adjusting the portion size accordingly. 
  • Carb content: Ingredients truly matter most, especially if carbs are added for any reason. Ideally, a keto protein powder will be sugar-free or a low-sugar option. 
  • Fat quality: If fat is added to the protein powder, we recommend selecting a product with higher-quality sources—like MCT oil—instead of ultra-processed and refined products. 
  • Other added ingredients: If the protein powder is formulated with additional ingredients, we encourage you to do some detective work to understand better why they’ve been included. This is also a personal preference, but we like to stray away from artificial ingredients and fillers if at all possible. 
  • Sweeteners: Does it use natural sweeteners like monk fruit or stevia? Does the sweetener add any extra calories?
  • Certifications and verifications: At a minimum, try to choose a protein supplement that’s been third-party tested. Also, go for products with certifications and verifications that align with any dietary restrictions and values, including USDA organic and gluten-free.
  • Budget: Consider how much you’re willing to pay for protein powder while also looking out for saving opportunities. Most protein powder companies offer subscribe and save options, and sometimes free shipping and reward programs, so you can keep stocked while saving some George Washingtons.
  • The company behind the product: Just as the GGR team reviews the brand, we encourage you to do the same since purchasing their product will support the company as a whole. Areas you might look over include their mission statement, values, customer support, and consumer reviews. 
huge whey protein

Best Keto Protein Powder FAQs

What is the best protein powder to use on a keto diet?

The best protein powder to use while following a keto diet is low in carbs and high in protein. Protein powders with added MCT oil or other healthy fat sources are also a great option. Ultimately, the best protein fits your dietary needs and preferences, especially by factoring in the type of protein (like a whey-based or dairy-free alternative) and your preferred flavor to enjoy.

Here are our top picks for different categories:

Best Keto Protein Powder Overall: Xwerks Grow
Best Budget Keto Protein Powder: Jacked Factory Authentic ISO 
Best Whey Isolate Keto Protein PowderTransparent Labs Whey Protein Isolate
Best Plant Based Keto Protein PowderRitual Essential Protein Daily Shake 18+
Best-Tasting Keto Protein PowderKaged Re-Kaged
Best Egg White Keto Protein PowderNaked Egg
Best Collagen Keto Protein Powder: Transparent Labs Grass-Fed Collagen Hydrolysate
Best Vegan Keto Protein PowderVega Sport Plant Protein
Best Grass-Fed Keto Protein Powder: Perfect Keto Whey
Best Unflavored Keto Protein PowderKlean Athlete Klean Isolate
Best Pea Keto Protein Powder: Sunwarrior Protein Warrior Blend

Is protein powder OK on keto?

When low in carbs and optional healthy fats, protein powder can be a great supplement to a keto diet. The utmost importance is choosing a high-quality protein powder that suits your unique dietary needs and macronutrient targets.

Does keto protein powder help you lose weight?

Keto protein powder can help you lose weight by inducing satiety (feelings of fullness), in turn aiding in calorie control. If you’re new to keto, you may also experience an initial drop in body weight due to water loss as glycogen stores are depleted.

Will protein shakes keep you in ketosis?

Getting into a state of ketosis is primarily based on restricting carbs, so a low- to no-carb protein shake should keep you there. However, it’s still essential to moderate protein intake and stay within your daily protein goals.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any diseases.

References

  1. Masood W, Annamaraju P, Uppaluri KR. Ketogenic Diet. [Updated 2022 Jun 11]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK499830/ 
  2. Puchalska P, Crawford PA. Multi-dimensional Roles of Ketone Bodies in Fuel Metabolism, Signaling, and Therapeutics. Cell Metab. 2017;25(2):262-284. doi:10.1016/j.cmet.2016.12.022
  3. Arroyo-Cerezo A, Cerrillo I, Ortega Á, et al. Intake of branched chain amino acids favors post-exercise muscle recovery and may improve muscle function: optimal dosage regimens and consumption conditions. J Sports Med Phys Fitness. 2021 Nov;61(11):1478-1489. doi: 10.23736/S0022-4707.21.11843-2. Epub 2021 Feb 15. PMID: 33586928.
  4. Kisling A, Lust RM, Katwa LC. What is the role of peptide fragments of collagen I and IV in health and disease? Life Sci. 2019;228:30-34. doi:https://doi.org/10.1016/j.lfs.2019.04.042
  5. Khatri M, Naughton RJ, Clifford T, et al. The effects of collagen peptide supplementation on body composition, collagen synthesis, and recovery from joint injury and exercise: a systematic review. Amino Acids. 2021 Oct;53(10):1493-1506. doi: 10.1007/s00726-021-03072-x. Epub 2021 Sep 7. PMID: 34491424; PMCID: PMC8521576.
  6. Berrazaga I, Micard V, Gueugneau M, et al. The Role of the Anabolic Properties of Plant- versus Animal-Based Protein Sources in Supporting Muscle Mass Maintenance: A Critical Review. Nutrients. 2019;11(8):1825. Published 2019 Aug 7. doi:10.3390/nu11081825
  7. Banaszek A, Townsend JR, Bender D, et al. The Effects of Whey vs. Pea Protein on Physical Adaptations Following 8-Weeks of High-Intensity Functional Training (HIFT): A Pilot Study. Sports (Basel). 2019;7(1):12. Published 2019 Jan 4. doi:10.3390/sports7010012
  8. Chakraborty AJ, Mitra S, Tallei TE, Tareq AM, Nainu F, Cicia D, Dhama K, Emran TB, Simal-Gandara J, Capasso R. Bromelain a Potential Bioactive Compound: A Comprehensive Overview from a Pharmacological Perspective. Life. 2021; 11(4):317. https://doi.org/10.3390/life11040317 
  9. Campbell MS, Carlini NA, Fleenor BS. Influence of curcumin on performance and post-exercise recovery. Crit Rev Food Sci Nutr. 2021;61(7):1152-1162. doi: 10.1080/10408398.2020.1754754. Epub 2020 Apr 22. PMID: 32319320.
  10. Lin TY, Liu HW, Hung TM. The Ketogenic Effect of Medium-Chain Triacylglycerides. Front Nutr. 2021;8:747284. doi:https://doi.org/10.3389/fnut.2021.747284
  11. D C Harvey CJ, Schofield GM, Williden M, et al. The Effect of Medium Chain Triglycerides on Time to Nutritional Ketosis and Symptoms of Keto-Induction in Healthy Adults: A Randomised Controlled Clinical Trial. J Nutr Metab. 2018 May 22;2018:2630565. doi: 10.1155/2018/2630565. PMID: 29951312; PMCID: PMC5987302.
  12. Bostock ECS, Kirkby KC, Taylor BV, Hawrelak JA. Consumer Reports of “Keto Flu” Associated With the Ketogenic Diet. Front Nutr. 2020;7:20. Published 2020 Mar 13. doi:10.3389/fnut.2020.00020
  13. Simopoulos AP. The importance of the omega-6/omega-3 fatty acid ratio in cardiovascular disease and other chronic diseases. Exp Biol Med (Maywood). 2008 Jun;233(6):674-88. doi: 10.3181/0711-MR-311. Epub 2008 Apr 11. PMID: 18408140.
  14. Vidović BB, Milinčić DD, Marčetić MD, et al. Health Benefits and Applications of Goji Berries in Functional Food Products Development: A Review. Antioxidants (Basel). 2022;11(2):248. Published 2022 Jan 27. doi:10.3390/antiox11020248
  15. Paoli A, Grimaldi K, D’Agostino D, et al. Ketogenic diet does not affect strength performance in elite artistic gymnasts. J Int Soc Sports Nutr. 2012 Jul 26;9(1):34. doi: 10.1186/1550-2783-9-34. PMID: 22835211; PMCID: PMC3411406.
  16. Paoli A, Grimaldi K, D’Agostino D, et al. Ketogenic diet does not affect strength performance in elite artistic gymnasts. J Int Soc Sports Nutr. 2012 Jul 26;9(1):34. doi: 10.1186/1550-2783-9-34. PMID: 22835211; PMCID: PMC3411406.
  1. Masood W, Annamaraju P, Uppaluri KR. Ketogenic Diet. [Updated 2022 Jun 11]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK499830/ 
  2. Puchalska P, Crawford PA. Multi-dimensional Roles of Ketone Bodies in Fuel Metabolism, Signaling, and Therapeutics. Cell Metab. 2017;25(2):262-284. doi:10.1016/j.cmet.2016.12.022
  3. Arroyo-Cerezo A, Cerrillo I, Ortega Á, et al. Intake of branched chain amino acids favors post-exercise muscle recovery and may improve muscle function: optimal dosage regimens and consumption conditions. J Sports Med Phys Fitness. 2021 Nov;61(11):1478-1489. doi: 10.23736/S0022-4707.21.11843-2. Epub 2021 Feb 15. PMID: 33586928.
  4. Kisling A, Lust RM, Katwa LC. What is the role of peptide fragments of collagen I and IV in health and disease? Life Sci. 2019;228:30-34. doi:https://doi.org/10.1016/j.lfs.2019.04.042
  5. Khatri M, Naughton RJ, Clifford T, et al. The effects of collagen peptide supplementation on body composition, collagen synthesis, and recovery from joint injury and exercise: a systematic review. Amino Acids. 2021 Oct;53(10):1493-1506. doi: 10.1007/s00726-021-03072-x. Epub 2021 Sep 7. PMID: 34491424; PMCID: PMC8521576.
  6. Berrazaga I, Micard V, Gueugneau M, et al. The Role of the Anabolic Properties of Plant- versus Animal-Based Protein Sources in Supporting Muscle Mass Maintenance: A Critical Review. Nutrients. 2019;11(8):1825. Published 2019 Aug 7. doi:10.3390/nu11081825
  7. Banaszek A, Townsend JR, Bender D, et al. The Effects of Whey vs. Pea Protein on Physical Adaptations Following 8-Weeks of High-Intensity Functional Training (HIFT): A Pilot Study. Sports (Basel). 2019;7(1):12. Published 2019 Jan 4. doi:10.3390/sports7010012
  8. Chakraborty AJ, Mitra S, Tallei TE, Tareq AM, Nainu F, Cicia D, Dhama K, Emran TB, Simal-Gandara J, Capasso R. Bromelain a Potential Bioactive Compound: A Comprehensive Overview from a Pharmacological Perspective. Life. 2021; 11(4):317. https://doi.org/10.3390/life11040317 
  9. Campbell MS, Carlini NA, Fleenor BS. Influence of curcumin on performance and post-exercise recovery. Crit Rev Food Sci Nutr. 2021;61(7):1152-1162. doi: 10.1080/10408398.2020.1754754. Epub 2020 Apr 22. PMID: 32319320.
  10. Lin TY, Liu HW, Hung TM. The Ketogenic Effect of Medium-Chain Triacylglycerides. Front Nutr. 2021;8:747284. doi:https://doi.org/10.3389/fnut.2021.747284
  11. D C Harvey CJ, Schofield GM, Williden M, et al. The Effect of Medium Chain Triglycerides on Time to Nutritional Ketosis and Symptoms of Keto-Induction in Healthy Adults: A Randomised Controlled Clinical Trial. J Nutr Metab. 2018 May 22;2018:2630565. doi: 10.1155/2018/2630565. PMID: 29951312; PMCID: PMC5987302.
  12. Bostock ECS, Kirkby KC, Taylor BV, Hawrelak JA. Consumer Reports of “Keto Flu” Associated With the Ketogenic Diet. Front Nutr. 2020;7:20. Published 2020 Mar 13. doi:10.3389/fnut.2020.00020
  13. Simopoulos AP. The importance of the omega-6/omega-3 fatty acid ratio in cardiovascular disease and other chronic diseases. Exp Biol Med (Maywood). 2008 Jun;233(6):674-88. doi: 10.3181/0711-MR-311. Epub 2008 Apr 11. PMID: 18408140.
  14. Vidović BB, Milinčić DD, Marčetić MD, et al. Health Benefits and Applications of Goji Berries in Functional Food Products Development: A Review. Antioxidants (Basel). 2022;11(2):248. Published 2022 Jan 27. doi:10.3390/antiox11020248
  15. Paoli A, Grimaldi K, D’Agostino D, et al. Ketogenic diet does not affect strength performance in elite artistic gymnasts. J Int Soc Sports Nutr. 2012 Jul 26;9(1):34. doi: 10.1186/1550-2783-9-34. PMID: 22835211; PMCID: PMC3411406.
  16. Paoli A, Grimaldi K, D’Agostino D, et al. Ketogenic diet does not affect strength performance in elite artistic gymnasts. J Int Soc Sports Nutr. 2012 Jul 26;9(1):34. doi: 10.1186/1550-2783-9-34. PMID: 22835211; PMCID: PMC3411406.

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