We test and review fitness products based on an independent, multi-point methodology. If you use our links to purchase something, we may earn a commission. Read our disclosures.
Let me give a piece of advice to all the men out there: Don’t fall for protein powders that make claims of helping you grow muscles in no time. The truth is that those companies spend most of their money on marketing.
The best protein powder for men contains high-quality ingredients and is backed by science, not some shredded dude or a celebrity. Our group of certified personal trainers, competitive triathletes, and dietary professionals have sifted through the hundreds of protein powders on the market to give you our top 14 picks that will work for all types of men, regardless of their size, training experience, or fitness levels.
The Garage Gym Reviews supplement testing methodology takes these four factors into consideration.
- Formulation: What ingredients are in it, and are they backed by research?
- Dosages: Are there clinically-endorsed doses of each ingredient?
- Solubility: Does it dissolve in the recommended amount of liquid?
- Taste: Is it yummy?
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. GGR also recommends choosing a product that has been third-party tested for quality.
RELATED: Best protein powder for women
The 14 Best Protein Powders for Men
- Best Overall Protein Powder for Men: Transparent Labs 100% Grass-Fed Whey Protein Isolate
- Best Protein Powder for Men for Muscle Gain: Kaged Re-Kaged
- Best Natural Protein Powder for Men: Legion Whey+
- Best Low-Carb Protein Powder for Men: Jacked Factory Authentic Whey
- Best Plant-Based Protein Powder for Men: KOS Vegan Protein Powder
- Best Protein Powder for Men for Weight Loss: Ritual Essential Protein 18+
- Best Flavored Protein Powder for Men: XWERKS Grow
- Best Protein Powder for Male Athletes: Onnit Whey Protein
- Best Protein Powder for Men for Digestion: Swolverine Whey Protein Isolate
- Best Casein Protein Powder for Men: Legion Casein+
- Best Budget Protein Powder for Men: Optimum Nutrition 100% Gold Standard Whey
- Best Grass-Fed Protein Powder for Men: Earth Fed Muscle
- Best Unflavored Protein Powder for Men: Naked Whey
- Best Whey Protein Powder for Men: Kaged Whey Protein Isolate
Best Overall Protein Powder for Men: Transparent Labs 100% Grass-Fed Whey Protein Isolate
Good for: Bodybuilders or any man whose main fitness goal is muscle building
Best Overall
Transparent Labs 100% Grass-Fed Whey Protein Isolate
Product Highlights
- High-quality whey protein isolate
- 28 grams of protein per serving
- 8 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
Transparent Labs 100% Grass-Fed Whey Protein Isolate is a clean, high-quality protein powder that contains 28 grams of protein per serving.
With zero grams of fat, a minimal number of carbs, and 28 grams of protein in most flavors, Transparent Labs 100% Grass-Fed Whey Protein Isolate is an easy choice for those looking to build muscle or lose weight.
As you can tell by its name, this protein supplement uses whey protein isolate, which is a type of protein that has had a majority of the lactose removed from it. This not only results in a low-carb, low-fat protein powder, but could also be safe for those who normally can’t stomach dairy products, as pointed out in this February 2023 study4.
Certified nutrition coach and GGR performance editor Anthony O’Reilly grabbed the limited-edition Peppermint Hot Chocolate flavor of Transparent Labs whey protein and enjoyed it even when the weather didn’t call for hot cocoa. “All you need is a fireplace and a Christmas tree to complete the scene with this protein powder,” Anthony says. Anthony, who’s also a certified personal trainer, gave his full thoughts on this protein powder in his Transparent Labs protein review.
Transparent Labs has built a reputation for being…well, transparent with its ingredients and nutrition labels. There are only five ingredients in each container and the dairy is sourced from cows that are grass-fed, hormone-free, and antibiotic-free. That’s why it gets a 5-out-of-5 for ingredients and formulation.
It’s free of artificial ingredients, fillers, dyes, or preservatives, though it’s not a great source of vitamins and minerals so you’ll want to make sure you’re getting those from other food sources or a multivitamin.
Some people might experience digestive problems due to the use of stevia, but myself and other customer reviewers barely noticed it when tasting this protein powder.
Price per serving | $1.99 |
Flavors | Milk Chocolate, Chocolate Peanut Butter, Cinnamon French Toast, Strawberry, Mocha, Vanilla Peanut Butter, French Vanilla, Oatmeal Chocolate Chip Cookie |
Protein | 28 g |
Protein source | Whey protein isolate |
Carbs | 2 g |
Fat | 0 g |
Total Calories | 120 |
Best Protein Powder for Men for Muscle Gain: Kaged Re-Kaged
Good for: Men who are looking to increase their protein intake
Muscle Gain
Kaged Re-Kaged
Product Highlights
- Recovery blend includes L-glutamine, digestive enzymes, and creatine HCI
- Formulated to build lean muscle and improve recovery time
- Scientifically-researched ingredients at appropriate ratios
- Unique flavors: strawberry lemonade, iced lemon cake, and orange kream
- Banned-substance free
Pros & Cons
Pros
- Mixes well
- Unique flavors
- Reportedly highly effective
- Only 1 gram of sugar
- Contains L-glutamine and creatine
Cons
- Too sweet for some people
- Contains sucralose
- May cause digestive issues
Bottom Line
If you are looking for a post-workout product that not only improves recovery but also is designed to build muscle mass, Kaged Re-Kaged may be the right option for you.
Men generally have more lean muscle mass than women, as stated in this 2017 review1, which means they need more protein to maintain it. Kaged Re-Kaged has 28 grams of protein per serving, which ties for the highest amount on this list.
It’s not just the amount of protein, however, that makes Re-Kaged our top choice for men looking to gain muscle. It also comes with creatine and betaine, two ingredients often found in pre-workouts and not protein powders. As the International Society of Sports Nutrition points out in this 2017 review2, creatine has consistently been linked with increased strength and muscle mass, and may help improve recovery after intense resistance training exercise.
Betaine, according to this August 2013 study3, may support improved muscle endurance and strength.
Re-Kaged is marketed as a post-workout supplement, but we believe it can be taken at any time of the day to help support your fitness goals.
Anthony O’Reilly, certified personal trainer and GGR performance editor, wishes he could give the Orange Kream flavor a 10-out-of-5. “It honestly tastes like using orange soda and vanilla ice cream to create an ice cream float, and I was very sad when I ran out of this stuff,” Anthony says. “This was my go-to post-workout protein powder.”

The one big downside is the per-serving cost: $2.25. That’s much higher than the $1.30-$1.99 price range we see for most protein powders, but you’d be hard pressed to find a protein supplement that contains ingredients proven to help with building muscle and strength. Oh, and did we mention the high amount of protein? Well, it’s worth repeating.
Price per serving | $2.25 |
Flavors | Strawberry Lemonade, Orange Kream, Iced Lemon Cake |
Protein | 28 g |
Protein source | Whey protein isolate |
Carbs | 2-3g (varies by flavor) |
Fat | 1 g |
Total Calories | 140 |
Best Natural Protein Powder for Men: Legion Whey+
Good for: Anyone looking for a protein powder free of additives or harmful ingredients
Natural
Legion Whey+
Product Highlights
- Sourced from small dairy farms in Ireland
- Over 5 g of BCAAs per serving
- Non-GMO and animal welfare approved
- Third-party tested for banned substances
Pros & Cons
Pros
- Low in carbs and fat
- Natural ingredients
- Money-back guarantee
- Made with ethically-sourced milk
- Lots of flavor options
Cons
- Comparably high cost per serving
- May be clumpy when mixed
- Some flavors have mixed reviews
Bottom Line
Legion Whey+ is a clean, sustainable protein powder that also is macro-friendly and a great option for anyone looking for a clean protein supplement.
Legion Athletics dedication to an all-natural protein powder begins by sourcing their dairy from small Irish farms, which, as this June 2013 study5 points out, is associated with better milk quality.
Furthermore, it has a Labdoor Tested for Purity certification to show that it’s been tested for heavy metals and other harmful substances, is safe for athletes, and has been tested for THC (the psychoactive compound in marijuana—and yes, some supplements may contain very small amounts of it).
Legion has a Truly Grass-fed certification, which shows that the cows have a mostly grass-fed diet that leads to higher antioxidant content6 in the dairy they create. They’re also free of any antibiotics, hormones, or other harmful substances. We awarded Legion Whey+ a 5-out-of-5 on its formulation and third-party testing for these reasons—we’re big fans of transparent supplement companies.

Certified nutrition coach Anthony O’Reilly says this taste like a clean protein powder, and the Cinnamon Cereal flavor provided a bit of nostalgia. “It tastes like Cinnamon Toast Crunch, but specifically when you get to the bottom of the bowl when the cereal flavor really seeps into the milk,” says Anthony, GGR’s performance editor, who wrote our Legion whey protein review.
The nutritional content varies by flavor, but you can’t go wrong with any of the 17 choices Legion offers—you get anywhere from 22 to 24 grams of protein, 2 to 4 grams of carbs, and up to 5 grams of fat. That last one is on the higher end of what we like to see in protein powders, but we wouldn’t worry about it too much so long as the rest of your diet has moderate amounts of fat.
Price per serving | $1.99 |
Flavors | 17 |
Protein | 22-24 g (varies by flavor) |
Protein source | Whey protein isolate |
Carbs | 2-4 g (varies by flavor) |
Fat | 0-5 g (varies by flavor) |
Total Calories | 110-130 (varies by flavor) |
Best Low-Carb Protein Powder for Men: Jacked Factory Authentic Whey
Good for: Men trying to reduce their carbohydrate intake
Low Carb
Jacked Factory Authentic Whey
Product Highlights
- 24 g of protein per serving
- Low-fat and low-carb
- Costs $1.50 per serving
- Five flavors
- Artificial aftertaste
Pros & Cons
Pros
- Low-carb
- Five flavors
- 24g of protein per serving
- No fillers or thickening agents
Cons
- Some artificial ingredients
- Has an artificial aftertaste
Bottom Line
Jacked Factory Authentic Whey is a low-carb, high-protein supplement that comes in five flavors at an affordable price.
Flavored protein powders can sometimes introduce carbs and sugar into the equation, but Jacked Factory Authentic Whey has a maximum of 2 carbs per serving and zero grams of added sugar. That’s not to mention that it only costs $1.50 per scoop to help keep your wallet and muscles as big as you want them.
They use stevia and sucralose, and honestly you can taste it in some of their flavors, but again, it’s nothing to worry about so long as you’re not consuming too much of these sweeteners throughout your diet.
Certified nutrition coach and personal trainer Anthony O’Reilly scored this a 4-out-of-5 when it came to the flavor department. He went with Fruity Cereal Splash, and while it reminded him of a Froot Loops bowl there was a slight artificial aftertaste. “It wasn’t anything too bad but it’s noticeable,” says Anthony, GGR’s performance editor. “On the bright side, I felt no rumblings after drinking it.”
Things like Xanthan gum are used as a thickening agent and have little to no nutritional value, so we wouldn’t worry about it too much.

Jacked Factory uses a protein blend of whey protein concentrate and whey protein isolate, the latter of which is generally more easily digestible4. People who are lactose intolerant should consult with their physician before consuming this protein powder, but myself and other customer reviewers experienced no digestive problems when drinking it.
Price per serving | $1.50 |
Flavors | Vanilla, Fruity Cereal Splash, Salted Chocolate Caramel, Orange Ice Cream, Chocolate |
Protein | 24 g |
Protein source | Whey protein isolate, whey protein concentrate |
Carbs | 1-2 g (varies by flavor) |
Fat | 2 g |
Total Calories | 110 |
Best Plant-Based Protein Powder for Men: KOS Vegan Protein
Good for: Men who live a plant-based lifestyle
No Whey
KOS Vegan Protein Powder
Product Highlights
- Multi-source vegan protein powder
- USDA-certified organic, soy-free, gluten-free, dairy-free, non-GMO
- Digestive support via DigeSEB to help maximize absorption
Pros & Cons
Pros
- Manufactured in the USA
- Superfood-infused
- 20 g protein per serving
- Chocolate flavor is rich
- Enhanced with digestive support enzymes
- Under $1.50 per serving
Cons
- Customers say it has a gritty/chalky flavor
- Some users reported protein gave them stomach issues
- Reports of strong sweetness and bad aftertaste
Bottom Line
KOS is a vegan protein with a lot of positive reviews, but a number of people experienced stomach issues using this protein powder.
If you live a plant-based lifestyle, are interested in becoming vegan, or just want to find a high-quality and great-tasting vegan protein powder, there’s nothing better than Vega Sport Premium Protein.
Vegan protein powder has a slight disadvantage as most plant-based protein sources, with the exception of soy, are deficient in some amino acids (the building blocks of protein molecules).
But since soy is a common allergen, KOS uses what are known as complementary proteins, or various protein sources that when combined together create a complete protein to give you all the essential amino acids necessary for building and maintaining muscle mass. This particular vegan protein powder for men uses pea protein, flax seed protein, quinoa protein, pumpkin seed protein, and chia seed protein.

Certified sports nutrition coach and competitive triathlete Amanda Capritto isn’t the biggest fan of vegan protein powders but she gave KOS Chocolate a 3 out of 5 on flavor because it had a rich chocolate taste that wasn’t earthy like other non-dairy protein shakes.
KOS also has a blend of digestive enzymes that may help with digestion, according to this January 2019 meta-analaysis15.
Need a more portable protein supplement? Check out our No Cow protein bar review.
Price per serving | $2 |
Flavors | Blueberry Muffin, Chocolate, Chocolate Chip Mint, Chocolate Peanut Butter, Salted Caramel Coffee, Vanilla, Unflavored |
Protein | 20 g |
Protein source | Pea protein, flax seed protein, quinoa protein, pumpkin seed protein, and chia seed protein. |
Carbs | 9 g |
Fat | 7 g |
Total Calories | 160 |
Best Protein Powder for Men for Weight Loss: Ritual Essential Protein 18+
Good for: Those who are cutting or on a weight loss journey
Best for Weight Loss
Ritual Essential Protein Daily Shake 18+
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.
Ritual Essential Protein 18+ comes in at 115 calories per serving, which is at the lower end of the more than 75 protein powders we’ve tested. Plus, it has 20 grams of protein that, according to this May 2008 study,12 can help you feel more full than carbs or fats. If you’re full, you’re less likely to eat more calories, and as a result, have an easier time achieving a caloric deficit—when you burn more calories than you consume—which is crucial for weight loss.
Yes, it’s pea protein and most of the time that can’t be considered a “complete” protein source because it’s low in the amino acid methionine—but Ritual adds an extra helping of this amino acid to create a high-quality protein for weight loss.

The protein powder only comes in one flavor, vanilla, but weightlifting coach and GGR Head of Content Kate Meier says it’s a 4 out of 5 on taste and makes an excellent accompaniment to her morning smoothie. “It’s not super plant-y or hemp-y like some plant-based proteins are,” she says. “The taste is definitely detectable, but not overly strong.”
Price per serving | $2.66 |
Flavors | Vanilla |
Protein | 20 g |
Protein source | Pea protein |
Carbs | 3 g |
Fat | 2 g |
Total Calories | 115 |
Best Flavored Protein Powder for Men: XWERKS Grow
Good for: Men looking for a great-tasting and high-quality protein powder
Tasty!
Xwerks Grow
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
- Tastes great
- 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. It comes in a widely-loved range of flavors which are naturally sweetened, so they’re easily digested.
I’ve lost track of the number of protein powders I’ve tasted in my role as a certified nutrition coach and personal trainer, but XWERKS Grow chocolate flavor is easily the best-tasting protein powder I’ve had in my life. Imagine if someone took Yoohoo and made a protein version of it—that’s what this tastes like. It’s also incredibly easy to mix and not once have there been any clumps left behind in my shaker bottle.
It’s not just the chocolate flavor that tastes amazing a gets a 5-out-of-5 in the tasting department, either. Hundreds of Amazon customer reviews state every flavor is delicious, and one all-caps review has me really wanting to try the peanut butter flavor.

XWERKS gets their dairy from New Zealand, which has laws preventing cows from being near hormones, pesticides, or antibiotics.7 It also utilizes a special filtration process that removes most of the carbs and fats, though the peanut butter flavor does have 2 grams of each (and a slightly lower protein content at 23 grams).
The filtration process keeps key nutrients like alpha-lactalbumin and immunoglobulins intact. A March 2018 review8 found that alpha-lactalbumin was necessary for human growth (now you see where XWERKS got the name). Your body needs immunoglobulins to help fight various diseases and viruses, according to this book9 dedicated to the topic.
Price per serving | $1.96 |
Flavors | Chocolate, Vanilla, Peanut Butter, Strawberry |
Protein | 25 g (Peanut butter has 23g) |
Protein source | Whey protein isolate |
Carbs | 1 g (Peanut butter has 2g) |
Fat | 0 g (Peanut butter has 2g) |
Total Calories | 110 |
Best Protein Powder for Male Athletes: Onnit Grass-Fed Whey Protein
Good for: Male athletes
For Athletes
Onnit Whey Protein
Product Highlights
- Sourced from New Zealand grass-fed cows
- Made with whey protein isolate to filter out fats and carbs
- Offers a complete amino acid profile
- Website offers a subscription option to save money and auto-ship
Pros & Cons
Pros
- Low in carbs
- High in leucine
- Whey isolate gets to muscles faster
- Non-GMO
Cons
- High cost per serving
- Can cause digestive issues for some people
- The Mexican Chocolate flavor has mixed reviews
Bottom Line
Onnit Whey Protein is a great protein option for those looking for a grass-fed protein, however there are cleaner grass-fed protein powders on the market that are lower in cost.
Onnit Grass-Fed Whey Protein bears the Informed Sport certification, meaning it’s safe for male athletes who want to ensure their supplements are free of any banned substances. The Informed Sport certification process checks for more than 250 banned substances.
Although rare, some supplements (protein powder included) may contain ingredients that are banned in certain sports. Every sport has different rules on what and how much of certain substances their athletes are allowed to take, so instead of spending your precious time scanning the ingredient list, it’s much easier to look for the Informed Sport mark. Other certifications to look out for include Informed Choice, NSF Certified for Sport, or BSCG.
GGR senior fitness writer Amanda Capritto is a competitive triathlete who’s super-strict about her supplementation, and Onnit Grass-Fed Whey Protein is a win in her book. “The Mexican Chocolate actually tastes different from other chocolate protein powders, which I honestly wasn’t expecting,” Amanda says. “It’s rich when mixed with whole or oat milk.”

There’s also no need to worry about the presence of antibiotics or steroids in the milk used to create this protein. Onnit sources their dairy from New Zealand, which has some of the strictest dairy laws in the world7 that prevent cows from being exposed to antibiotics, pesticides, or hormones.
The use of whey protein isolate means it’s more easily digested than whey concentrate and may be safe for those with dairy sensitivities, but Onnit takes it a step further by adding a digestive enzyme blend that, among other things, contains protease and papain. Both have been linked with improved gut health10. In fact, Amanda scored it a 5-out-of-5 when it comes to digestion — “I felt nothing,” she says.
There’s another ingredient that we don’t see often in protein powders: lactobacillus acidophilus. This probiotic strain found in yogurt can help treat a number of digestive disorders, according to a November 2020 study,11 including chronic diarrhea. We’re not sure what, if any benefit it has when added to protein powder, but it could help some people who often have trouble digesting dairy products.
Price per serving | $1.99 |
Flavors | Vanilla, Mexican Chocolate |
Protein | 20 g |
Protein source | Whey protein isolate |
Carbs | 3-5 g |
Fat | 2 g |
Total Calories | 110 |
Best Protein Powder for Men for Digestion: Swolverine Whey Protein Isolate
Good for: Those who are looking for an easily digestible protein powder
Best for Digestion
Swolverine Whey Protein Isolate
Product Highlights
- 26 g of cold-pressed whey protein isolate per serving
- Derived from rBGH-free, grass-fed cows
- Unusual honey cinnamon peanut butter flavor
- 10 mg of papain and protease digestion enzymes
- Can be subscription based to unlock savings
Pros & Cons
Pros
- Dissolves well
- Clean ingredients
- Free from rBGH
- 26 grams of whey protein
- No added sugar
Cons
- Expensive
- Flavor is very mild (some buyers felt there was little taste)
- Texture is really thin when shaken with water
Bottom Line
Swolverine whey protein features 26 grams of pure whey protein isolate as well as digestive enzymes for optimal absorption, making it a solid choice for most people.
Swolverine Whey Protein Isolate is another protein powder that utilizes the more easily-digestible and mostly lactose-free form of whey protein known as whey protein isolate4. It also contains other ingredients that may help people who sometimes experience stomach problems when drinking protein powder.
There are 5 milligrams each of protease and papain, both of which are digestive enzymes (papain is extracted from papaya fruits). An October 2022 study6 on both digestive enzymes found they could support improved gut health and reduce digestive issues when taken as a supplement—but Swolverine already included it for you, so no need to drive to the nutrition store. All that means Swolverine earns a 5-out-of-5 for ingredients and formulation.
“The chocolate flavor is good,” says Amanda Capritto, GGR fitness writer and a certified sports nutrition coach. “It’s very rich and, indeed, very chocolatey. With milk, it tastes great, but with water, it’s so ultra-thin that it’s off-putting. It was like drinking chocolate water, which I didn’t enjoy.” Amanda scored it a 4-out-of-5 in the flavor department, knocking off one point for the “chocolate water” taste.

The vitamin and mineral content also appears to be the highest of the dozens of protein powders we’ve tested, making it a nutrient-dense supplement that’s also rich in protein (26 grams!).
The $2.09 per-serving cost is on the more expensive side, but it might be worth it to avoid paying the price with your digestive tract.
Price per serving | $2.09 |
Flavor | Vanilla, Chocolate, Honey Cinnamon Peanut Butter, Mint Chocolate Chip |
Protein | 26 g |
Protein source | Whey protein isolate |
Carb | 1 g |
Fat | 0.5-5 g |
Total Calories | 110 |
Best Casein Protein Powder for Men: Legion Casein+
Good for: Men who want a casein protein powder that will keep them full
Case(in) Closed
Legion Athletics Casein+ Protein Powder
Product Highlights
- Milk-derived casein protein powder
- Thick texture
- 5 flavor options
- Sourced from grass-fed cattle
- 25 g protein per serving
- 5 grams of BCAAs and 11.4 grams of EAAs per serving
Pros & Cons
Pros
- Sourced from grass-fed cattle
- 100% micellar casein
- Tasty flavor options
- Smooth, rich, creamy texture
- Analyzed for purity and potency in an ISO 17025 accredited lab
- 0g added sugar
- Includes BCAAs and EAAs
- Subscribe-and-save option
Cons
- Casein protein is significantly thicker than whey
- Casein can cause bloating and gas, especially upon initial use
- Takes quite a bit of shaking to get rid of all clumps
Bottom Line
Legion Athletics Casein+ Protein Powder comes in several delicious flavors, and we’re fans of the Banana Cream Pie. Casein can be consumed as a shake, or with less water, like a pudding. This protein has 25 grams of protein per 110-calorie serving.
A study in the Journal of Nutritional Science16 found that casein protein powder was digested much slower than whey protein powder, meaning it kept people fuller for longer (you’ll sometimes see casein in meal replacement powders for this very reason). Legion’s Casein+ protein powder was our favorite casein protein powder because it comes from grass-fed cows and has been tested for harmful and banned substances.

Grass-fed dairy has more antioxidants than grain-fed dairy, but another reason to seek out these types of products is they have a better omega-3/omega-6 ratio. Both types of omega fatty acids are what are known as “good” fats, but you want more omega-3s in your diet than omega-6s.
“The Banana Cream Pie flavor tastes more like an underripe banana than a dessert but still tastes really good,” says GGR performance editor and certified nutrition coach Anthony O’Reilly. “This has been my nighttime protein powder for quite some time now and I wake up still feeling full.”
If you’ve never had a casein protein powder before, just know they’re generally much thicker and take more time to blend than their whey counterparts. Anthony still found mixing his to be easy, and gave it a 5-out-of-5 for solubility (though a shaker ball is still highly recommended).
This February 2018 study17 found grass-fed dairy had a more optimal omega-3/omega-6 ratio than milk from grain-fed cows. Omega-3s have been linked with improved heart and joint health18, and may even help reduce the frequency of certain types of headaches.
Price per serving | $2.00 |
Flavors | Cinnamon Cereal, Dutch Chocolate, Banana Cream Pie, French Vanilla, Strawberry |
Protein | 24-26 g (varies by flavor) |
Protein source | Casein protein |
Carbs | 2-5 g (varies by flavor) |
Fat | 0-2 g (varies by flavor) |
Total calories | 110 |
Best Budget Protein Powder for Men: Optimum Nutrition 100% Gold Standard Whey
Good for: Men looking to up their protein intake on a budget
Budget Pick
Optimum Nutrition Gold Standard 100% Whey
Product Highlights
- Contains 3 different kinds of whey protein
- Tested for banned substances
- Over 5 g of BCAAs per serving
- Instantized to help prevent clumping
Pros & Cons
Pros
- High in protein
- Plenty of flavor options
- Low in carbs
Cons
- Some users say it's overly sweet
- Contains artificial flavors
- Most flavors contain sucralose
Bottom Line
With plenty of flavor and size options to choose from, Optimum Nutrition Gold Standard 100% Whey is a great basic choice in protein powder.
Gone are the days when eggs were a budget-friendly protein source, but luckily there’s Optimum Nutrition 100% Gold Standard Whey. Depending on the container size you order, the per-serving cost can be as cheap as $1.08. We recommend getting a larger container since the per-scoop cost tends to drop as the size of the bag increases.
RELATED: Does protein powder expire?
For those wondering, “Why on Earth would I buy a 73-serving bag of chocolate flavor protein powder,” there are two answers. Besides the lower per-serving cost, protein powder can last up to a year when stored in the right conditions (at room temperature in a cool, dry place). In other words, you don’t have to worry about it going bad like you do with meat or eggs. That’s a win-win in our book and one of the many reasons Optimum Nutrition gets a 5-out-of-5 on price.
Nicole Davis, GGR senior editor, and certified personal trainer, has tried multiple Optimum Nutrition flavors but said the Delicious Strawberry is one of her favorites. “I wouldn’t have normally picked this flavor but my husband said this was his favorite protein back in the day and it didn’t disappoint. Even my kids liked it.” We can’t think of a better endorsement than that.

One way Optimum Nutrition Gold Standard and other budget-friendly supplement companies are able to keep their prices low is by using artificial sweeteners, preservatives, fillers, and other ingredients, but they’re present in very small quantities so it’s nothing to worry about.
Price per serving | $1.08-$1.66 (depending on container size) |
Flavors | 19 |
Protein | 24 g |
Protein source | Whey protein concentrate, whey protein isolate, hydrolyzed whey protein |
Carbs | Varies by flavor |
Fat | Varies by flavor |
Total Calories | 120-130 |
Best Grass-Fed Protein Powder for Men: Earth Fed Muscle
Good for: People who prefer grass-fed dairy supplements
Grass-Fed
Earth Fed Muscle Ca-Cow
Product Highlights
- Protein from whey
- Grass-fed and sustainable
- Clean ingredients
- No fillers or synthetic ingredients
- GMP certified
Pros & Cons
Pros
- Easily mixed
- Hormone-free
- Only 4 ingredients
- Soy and gluten-free
Cons
- Relatively expensive
- Stevia may cause digestive discomfort for some people
- Some users report difficulty mixing in cold liquid
Bottom Line
With an average protein content and a higher cost per serving, this protein powder is better for those looking for a clean protein option rather than those just looking for great-tasting protein.
The biggest reason for us awarding Earth Fed this distinction is the Truly Grass-Fed certification on the container. This certification tells us the cows that produced this dairy spent most of their time outside eating grass as nature intended, and that the cows don’t come into contact with antibiotics or synthetic hormones. This protein also has an Animal Welfare-approved certification, so we know the cows are well taken care of.
Why is having grass-fed cows so important? New York City-based registered dietitian Laila Ouldibbat says it’s because dairy from grass-fed cows is more nutritious than milk from grain-fed livestock. “When cattle are grass-fed, health-promoting phytonutrients (antioxidants with the potential to heal and protect) are found in their meat and milk,” she says6.

Studies have also shown that grass-fed dairy has more omega-3 fatty acids than grain-fed dairy and that omega-3s may have anti-inflammatory properties and support brain, heart, and joint health1.
GGR Head of Content and competitive weightlifter Kate Meier has been using Earth Fed Muscle for more than five years and it’s easily a 5-out-of-5 on taste for her—even when mixed with water (which, blech, but to each their own). “You can tell there isn’t a bunch of crap in it,” Kate says. “Also, even blended with water, this protein has a very smooth, rich taste. I can drink just this and water and be a happy camper!”
The use of whey protein isolate means it’s more easily digested than whey concentrate and may be safe for those with dairy sensitivities4. Earth Fed is also a rather simple protein, only containing around five ingredients (the exact number varies by flavor). Don’t be concerned about the sunflower lecithin—Earth Fed uses less than a gram and it’s in there to prevent the powder from clumping.
Price per serving | $2.06 |
Flavors | Chocolate |
Protein | 25 g |
Protein source | Whey protein isolate |
Carb | 3 g |
Fat | 0.5 g |
Total Calories | 120 |
Best Unflavored Protein Powder for Men: Naked Nutrition Naked Whey
Good for: Anyone looking for an unflavored protein powder
Unflavored
Naked Nutrition Naked Whey
Product Highlights
- Flavorless option
- No artificial flavors, colors, or sweeteners
- Sourced from small dairy farms
- Cold processed to limit contamination
- Only 3 ingredients (unflavored has 1)
Pros & Cons
Pros
- Relatively low cost per serving
- GMO-free
- Non-denatured
- Zero additives
Cons
- Can be foamy when mixed
- Limited flavor options
- Some reviews mention errors on the product label
Bottom Line
Naked Nutrition Naked Whey is a great natural protein powder if you are looking for a flavorless protein option.
Sometimes you just want to add protein to your morning smoothie without changing the flavor, and for that we recommend Naked Nutrition Naked Whey. Unlike some unflavored protein powders that often contain other ingredients and additives, Naked Whey is exactly that—whey, and nothing else.
“This is truly an unflavored protein powder,” says certified personal trainer Anthony O’Reilly, who’s tried hundreds of protein powders. “I wouldn’t recommend drinking it straight as it has a powdery texture, but it goes great with smoothies.”
Since it’s unflavored, that means you can be sure this protein powder is gluten-free, non-GMO, and soy-free. It also has the Informed Choice Trusted By Sport certification that shows it’s safe for athletes to consume without fear of accidentally ingesting any banned substances. That gives it a perfect 5-out-of-5 score when it comes to third-party testing and certifications.
Naked Whey uses whey protein concentrate, which unlike whey protein isolate still has much of the lactose (i.e., carbs and sugar) and fat naturally found in whey. That’s not the worst thing in the world, especially since carbs and fats are necessary for different bodily functions, but it’s something to keep in mind if you’re counting your macronutrient intake.

We also love when protein powder manufacturers clearly state their amino acid profile, as is the case with Naked Whey. Another advantage is that Naked Nutrition uses grass-fed cows—which a February 2021 review6 found contained a higher number of phytonutrients than grain-fed cows. The same review stated that phytonutrients were linked with a reduced disease risk and may support heart health6.
Price per serving | $1.24 |
Flavor | Unflavored |
Protein | 25 g |
Protein source | Whey protein concentrate |
Carb | 3 g |
Fat | 2 g |
Total Calories | 120 |
Best Whey Protein Powder for Men: Kaged Whey Protein Isolate
Good for: Those who want a great-value whey protein powder
The Whey
Kaged Whey Protein Isolate
Product Highlights
- Whey protein isolate
- 25 grams of protein per serving
- Available in 5 flavors
- Third-party tested
Pros & Cons
Pros
- Affordable
- Good macro profile
- Reviewers claim it's easy on the stomach
- Tastes good
Cons
- Clumpy when mixed
- Certain flavors out of stock frequently
- Only 5 flavors available
Bottom Line
Kaged Whey Protein Isolate is a fast-digesting protein available in five flavors with 25 grams of protein per serving.
One of the major reasons we chose Kaged Whey Protein Isolate for the best whey protein protein powder is because you get at least 40 servings per container (the exact number varies by flavor). The container itself might cost more than other protein supplements, but you’re getting a lot more bang for your buck.
It’s also a simple protein powder, and sometimes simple is best. Unlike the other Kaged product on this list, this one just contains whey protein isolate for easy digestion4. There are some thickeners, flavorings, and a digestive enzyme blend (more on that in a second), but overall it’s great for someone who just wants whey protein.
Nicole Davis, GGR senior editor and certified personal trainer, was reminded of those Carnation Instant Breakfast mixes when she tried the chocolate flavor, which earned it a 5-out-of-5 on taste, and found that Kaged remained a bit grainy even after a thorough shake.

It contains a minimal amount of sucralose, so it’s unlikely to cause many digestive issues.
Speaking of digestion, let’s talk about ProHydrolase. Kaged claims this enzyme can help with protein absorption and support muscle recovery, but the lone public study on it published in January 202018 shows it has minimal impact on protein absorption, though there were noticeable increases in amino acid concentration in the blood.
Price per serving | $1.36-$1.46 |
Flavors | Chocolate Peanut Butter, Vanilla, Chocolate, S’Mores, Cinnamon French Toast |
Protein | 25 g |
Protein source | Whey protein isolate |
Carbs | 2-3 g |
Fat | 0-0.5 g |
Total Calories | 110 |
Other Protein Powders for Men We Researched
Here’s a sneak peek at a few of the other protein powders we considered for this list, but ultimately decided against for various reasons.
- Muscle Milk Genuine Protein Powder: Muscle Milk Genuine Protein Powder is a better fit for someone looking for a meal replacement protein powder—that is, a protein powder that’s a bit higher in carbohydrates and fats than your typical protein supplement that can be used as a meal replacement shake.
- Kaged Kasein: Another great casein protein powder, but we went with Legion Casein based on taste. Kaged Kasein also tasted good, just not as good as Legion.
- 1st Phorm Phormula 1: A delicious and macro-friendly protein powder, but not one we can recommend to most people since it costs $65 a container.
- Orgain Organic Grass-Fed Whey: A great choice if you’re looking for an organic protein powder, though it has more carbohydrates than we typically like in a protein powder. That’s not a bad thing, just something to be aware of when shopping for protein supplements.
- Sun Warrior Protein Warrior Blend: A lower-calorie protein powder that’s great for those trying to lose weight—it just wasn’t our favorite when it came to taste.
- Performix ioWHEY: Some of our testers loved Performix’s taste, while others said it fell a bit short. Ultimately, the lack of consensus kept it off this list.
- GNC Lean Shake Burn: A bit too pricey and not tasty enough, at least in our opinion.
- Ghost Whey Protein: Trendy and nostalgic flavors, but our expert product testers felt it was a bit too sweet and artificial-tasting.
- Now Sports Whey Protein Isolate: A decent unflavored protein powder, though we felt it had a more noticeable “whey” taste than Naked Whey.
- MuscleTech Iso Whey Clear: This “clear” protein comes in fruity flavors, rather than the traditional dessert-themed protein powders. While taste is subjective, our expert product testers weren’t in love with the flavor and felt there were too many “floaties” leftover after mixing.
- Huge Supplements Whey Protein: Huge Whey protein has a bit more carbs and fats than we typically like to see in a protein powder, though it’s a great choice if your main fitness goal is building muscle mass.
- Cira Bright Whey Protein: A great choice for women—which is why we left it off this list.
- Dymatize ISO 100 Hydrolyzed Whey: Some nostalgic flavor offerings, though there are better options at this price range.
- Kaged Plantein: We just didn’t like the taste of this vegan protein powder.
Now do you believe me when I say we’ve tried literally dozens of protein powders?

How We Picked and Tested the Best Protein Powder for Men
If you’re wondering how we were able to leave so many protein powders off our list, here’s an inside look at our criteria for the best protein powder for men:
- Protein content: We wanted to make sure each choice had a good amount of protein.
- Overall calorie content: We looked at the total number of calories in each protein powder.
- 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?
- Digestibility: While this can be subjective, we made sure none of us experienced any major side effects from these protein supplements.
- Protein source: Did the protein powder come from whey protein, egg white, collagen, casein protein, or plant-based proteins (i.e., pea protein, rice protein, chia seeds, or brown rice)?
- Amino acids: Did the protein powders contain all 12 essential amino acids needed for muscle growth, and were there any branched-chain amino acids (BCAAs)?
- Price: Price per serving can range from $1.25 on the low end to upwards of $2 on the high end. A $1.90 per-serving cost would get it a 1-2, whereas a per-serving cost of $1.50 or less would get a 4-5.
- Flavor: Again, this is subjective, but we wouldn’t recommend anything we didn’t like or was universally panned in customer reviews.
- Transparency and 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?
Benefits of Protein Powder for Men
Here are a few reasons why you might want to consider purchasing a protein powder:
- Convenience: Which is quicker: Grilling and eating a steak or whipping up a quick protein shake? That’s right, the second one.
- Shelf-stable: If kept at room temperature and properly sealed, protein powders can last up to 18 months—much longer than eggs, meat, or other protein sources.
- Supports Muscle Growth: Protein can help you maintain and build lean muscle mass.
- Supports Weight Loss: Because it’s the most satiating macronutrient, protein powder can also be used for those looking to lose body fat.
What to Look For in Protein Powder for Men
Here’s how to determine the best protein powder for your needs:
- Protein content: Find a protein powder that fits your macronutrient goals.
- Digestibility: If you’re lactose intolerant, you’ll either want a dairy-free protein powder or one that primarily contains whey protein isolate.
- Amino acids: Make sure it contains all 12 essential amino acids.
- Price: Find one that fits your budget.
- Flavor: Make sure you like the taste.
RELATED: Best protein chips

Experts Who Contributed to This Article
FAQs About Protein Powder for Men
Which whey protein is best for men?
Our top pick for the best whey protein powder for men is Kaged Re-Kaged due to its high protein content and the addition of creatine and betaine to support muscle growth.
Is it good to drink protein powder every day?
Drinking protein powder is fine once or twice a day, but your main focus should be on eating whole foods to obtain a variety of vitamins and minerals needed for bodily functions.
Is it healthy to drink whey protein every day?
So long as you’re not allergic to dairy it’s fine, but make sure you’re also eating whole foods to ensure you’re getting enough vitamins and minerals.
Does protein powder affect hormones in men?
Protein powder doesn’t directly affect men’s hormones, but you’re total caloric intake and macronutrient ratio (how much protein, carbs, and fats you eat) may have an impact on testosterone and other hormones. Talk to your physician if you have any questions about how your diet may affect your hormones.
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. Bredella MA. Sex Differences in Body Composition. Adv Exp Med Biol. 2017;1043:9-27. doi:10.1007/978-3-319-70178-3_2
- 2. Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18. Published 2017 Jun 13. doi:10.1186/s12970-017-0173-z
- 3. Cholewa JM, Wyszczelska-Rokiel M, Glowacki R, et al. Effects of betaine on body composition, performance, and homocysteine thiolactone. J Int Soc Sports Nutr. 2013;10(1):39. Published 2013 Aug 22. doi:10.1186/1550-2783-10-39
- 4. Sabari S, Julmohammad N, Jahurul HAM, Matanjun P, Ab Wahab N. In Vitro Infant Digestion of Whey Proteins Isolate-Lactose. Foods. 2023;12(3):667. Published 2023 Feb 3. doi:10.3390/foods12030667
- 5. Archer, S. C., Mc Coy, F., Wapenaar, W., & Green, M. J. (2013). Association of season and herd size with somatic cell count for cows in Irish, English, and Welsh dairy herds. In The Veterinary Journal (Vol. 196, Issue 3, pp. 515–521). Elsevier BV. https://doi.org/10.1016/j.tvjl.2012.12.004
- 6. van Vliet, S., Provenza, F. D., & Kronberg, S. L. (2021). Health-Promoting Phytonutrients Are Higher in Grass-Fed Meat and Milk. In Frontiers in Sustainable Food Systems (Vol. 4). Frontiers Media SA. https://doi.org/10.3389/fsufs.2020.555426
- 7. Design and Operation of Farm Dairies, New Zealand Government
- 8. Layman DK, Lönnerdal B, Fernstrom JD. Applications for α-lactalbumin in human nutrition. Nutr Rev. 2018 Jun 1;76(6):444-460. doi: 10.1093/nutrit/nuy004. PMID: 29617841; PMCID: PMC5934683.
- 9. Justiz Vaillant AA, Jamal Z, Patel P, Ramphul K. Immunoglobulin. 2022 Nov 24. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan–. PMID: 30035936.
- 10. Kostiuchenko O, Kravchenko N, Markus J, Burleigh S, Fedkiv O, Cao L, Letasiova S, Skibo G, Fåk Hållenius F, Prykhodko O. Effects of Proteases from Pineapple and Papaya on Protein Digestive Capacity and Gut Microbiota in Healthy C57BL/6 Mice and Dose-Manner Response on Mucosal Permeability in Human Reconstructed Intestinal 3D Tissue Model. Metabolites. 2022 Oct 26;12(11):1027. doi: 10.3390/metabo12111027. PMID: 36355110; PMCID: PMC9696696.
- 11. María Remes Troche J, Coss Adame E, Ángel Valdovinos Díaz M, Gómez Escudero O, Eugenia Icaza Chávez M, Antonio Chávez-Barrera J, Zárate Mondragón F, Antonio Ruíz Velarde Velasco J, Rafael Aceves Tavares G, Antonio Lira Pedrín M, Cerda Contreras E, Carmona Sánchez RI, Guerra López H, Solana Ortiz R. Lactobacillus acidophilus LB: a useful pharmabiotic for the treatment of digestive disorders. Therap Adv Gastroenterol. 2020 Nov 24;13:1756284820971201. doi: 10.1177/1756284820971201. PMID: 33281937; PMCID: PMC7692339.
- 12. Paddon-Jones D, Westman E, Mattes RD, Wolfe RR, Astrup A, Westerterp-Plantenga M. Protein, weight management, and satiety. Am J Clin Nutr. 2008 May;87(5):1558S-1561S. doi: 10.1093/ajcn/87.5.1558S. PMID: 18469287.
- 13. Bian X, Chi L, Gao B, Tu P, Ru H, Lu K. Gut Microbiome Response to Sucralose and Its Potential Role in Inducing Liver Inflammation in Mice. Front Physiol. 2017 Jul 24;8:487. doi: 10.3389/fphys.2017.00487. PMID: 28790923; PMCID: PMC5522834.
- 14. Center for Food Safety and Applied Nutrition. (n.d.). Additional information about high-intensity sweeteners. U.S. Food and Drug Administration. Retrieved February 17, 2023
- 15. Khalesi S, Bellissimo N, Vandelanotte C, Williams S, Stanley D, Irwin C. A review of probiotic supplementation in healthy adults: helpful or hype? Eur J Clin Nutr. 2019 Jan;73(1):24-37. doi: 10.1038/s41430-018-0135-9. Epub 2018 Mar 26. PMID: 29581563.
- 16. Churchward-Venne TA, Snijders T, Linkens AM, Hamer HM, van Kranenburg J, van Loon LJ. Ingestion of Casein in a Milk Matrix Modulates Dietary Protein Digestion and Absorption Kinetics but Does Not Modulate Postprandial Muscle Protein Synthesis in Older Men. J Nutr. 2015 Jul;145(7):1438-45. doi: 10.3945/jn.115.213710. Epub 2015 May 27. PMID: 26019248.
- 17. Benbrook, C. M., Davis, D. R., Heins, B. J., Latif, M. A., Leifert, C., Peterman, L., Butler, G., Faergeman, O., Abel-Caines, S., & Baranski, M. (2018). Enhancing the fatty acid profile of milk through forage-based rations, with nutrition modeling of diet outcomes. In Food Science & Nutrition (Vol. 6, Issue 3, pp. 681–700). Wiley. https://doi.org/10.1002/fsn3.610
- 18. Townsend JR, Morimune JE, Jones MD, Beuning CN, Haase AA, Boot CM, Heffington SH, Littlefield LA, Henry RN, Marshall AC, VanDusseldorp TA, Feito Y, Mangine GT. The Effect of ProHydrolase® on the Amino Acid and Intramuscular Anabolic Signaling Response to Resistance Exercise in Trained Males. Sports (Basel). 2020 Jan 22;8(2):13. doi: 10.3390/sports8020013. PMID: 31978998; PMCID: PMC7077235.
Further reading
The Rogue Ohio Bar is one of the most popular barbells in the world. To make an already great bar better, Rogue is now offering it in a Stainless Steel version that will have better corrosion resistance than most competitors. Read more
Our C4 pre-workout review examines why this has been one of the most popular supplements for more than a decade. Read more
Let me give a piece of advice to all the men out there: Don’t fall for protein powders that make claims of helping you grow muscles in no time. The truth is that those companies spend most of their money on marketing. The best protein powder for men contains high-quality ingredients and is backed by science, not some shredded dude or a celebrity. Our group of certified personal trainers, » Read more about: The Best Protein Powder For Men in 2023 to Help Build Strength and Muscle Mass » Read more
Coffee vs. pre-workout—is one better for powering through a workout? We’ll discuss what you need to know. Read more