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.

At GGR, we prioritize honesty and transparency, so let’s be upfront: The potential of the best testosterone booster options is intriguing, but their effectiveness remains inconclusive. They are also by no means a stand-in for medical advice or the cornerstones of a healthy lifestyle.

That said, we’re not here to dampen your curiosity about questions like, “Does creatine increase testosterone?” or dismiss the exploration of other marketed boosters—there’s always something new to learn, after all; especially if you’re looking for the best supplements for men. However, we strongly advise you to proceed cautiously and consult a healthcare provider for guidance.

If the idea of today’s testosterone boosters excites you, come along with me, a registered dietitian, as I delve into the specifics of each product. Let’s get into it!

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 Testosterone Boosters

The Truth About Testosterone

Before we open the chat on testosterone booster supplements, let’s first understand the facts about testosterone. To clarify, our focus is not on the synthetic anabolic steroid but instead on testosterone1 as the sex hormone naturally produced in the gonads—specifically, by Leydig cells in the testes for men and in the ovaries for women.

Testosterone is the primary sex hormone for males, playing a crucial role in their sexual development, although it is also produced in smaller quantities by women. As an androgen2, or male sex hormone, testosterone is vital for the development of male growth and masculine characteristics, including:

  • Development of the testicles and penis
  • Sperm production
  • Libido
  • Voice deepening
  • Growth of facial and pubic hair
  • Muscle strength and size
  • Bone density and strength

In women3, healthy testosterone levels help maintain bone density, muscle mass, and cognitive functions. Testosterone also plays a role in sexual desire and arousal and regulates mood.

The production and regulation of testosterone involves a complex feedback loop, with most activity occurring during puberty into adulthood. Levels of testosterone progressively decline with age, particularly by age 30.1

The Low Down On Low T

Low testosterone (or “low T”) is often referred to as hypogonadism4, a condition in which the body does not produce enough testosterone. It’s characterized by serum testosterone levels of less than 300 nanograms per deciliter (ng/dL) and attributed to certain medical conditions, stress, or issues with the pituitary gland or testicles. 

Symptoms of low testosterone5 are mostly nonspecific, and some men may not notice symptoms at all. However, others may experience a decrease in testicular size, libido (sex drive), bone density, and muscle mass, among others.

Testosterone Replacement Therapy (TRT) is the primary treatment for hypogonadism, aiming to normalize testosterone levels and improve sexual function and well-being. Yet, research in the World Journal of Men’s Health6 shows about 88 percent of men with low testosterone don’t pursue treatment despite having access to healthcare. 

Risks7 related to testosterone treatment—like infertility and breast enlargement—and concerns over substances banned by the World Anti-Doping Agency (WADA) may contribute, pushing some towards alternative options like testosterone-boosting supplements.

Best Testosterone Booster Overall: Transparent Labs Vitality

Good for: Athletes and consumers seeking third-party-tested products free of banned substances 

Best Overall

Transparent Labs Vitality Natural Hormone Support

GGR Score: 4.5 starstarstarstarstar

Product Highlights

  • Capsule testosterone support supplement
  • Transparent Labs shares this prepares the body for optimal performance
  • 5 active ingredients, including shilajit, ashwagandha, and zinc
  • Transparent Labs claims Vitality encourages balanced ratios of testosterone to cortisol and testosterone to estradiol
  • Listed benefits include muscle growth and recovery, improved libido, mood, and overall well being

Pros & Cons


  • No artificial sweeteners or coloring
  • Gluten-free, vegan, and non-GMO
  • Subscribe and save plus free shipping
  • Multiple active ingredients
  • Third-party tested and Informed Choice Certified


  • Not sold in stores
  • Transparent Labs recommends taking 1-2 servings per day
  • Processed in a facility that also processes nuts

Bottom Line

Transparent Labs Vitality is a testosterone optimization supplement. There are multiple active ingredients including LJ100 Eurycoma longifolia extract, KSM-66 organic ashwagandha extract, PrimaVie shilajit extract, L-OptiZinc, and BioPerine that Transparent Labs shares helps promote well being and athletic performance.

Transparent Labs stands out for its transparently formulated supplements, and its Vitality product aligns with this unwavering commitment. Transparent Labs Vitality aims to optimize well-being and athletic performance by balancing hormone levels using various micronutrients and herbal ingredients. 

RELATED: Transparent Labs LEAN Review

At the forefront of Vitality’s ingredient list is L-OptiZinc®, which combines zinc and methionine to enhance absorption. Zinc8 is essential for numerous bodily functions, and its deficiency is associated with hypogonadism in men. A 2023 systematic review9 emphasizes that zinc supplementation can effectively increase testosterone levels. Boron10, another critical micronutrient, plays a vital role in hormone regulation and helps prevent vitamin D deficiencies linked to low testosterone levels.11

Vitality further incorporates branded Ayurvedic extracts—including ashwagandha12 (as KSM-66®), shilajit13 (as PrimaVie®), and Eurycoma longifolia14 (or tongkat ali as LJ100®)—for their potential roles in boosting testosterone, enhancing sexual function, and serving as aphrodisiacs. 

man pouring out best testosterone boosters vitality

The formula is enriched with 250 milligrams of quercetin15, a type of flavonoid found in plant foods that offers many health-promoting benefits, like protecting against cancer and lowering high blood pressure. A 2022 review16 suggests quercetin may improve male reproductive health.

Next is 125 milligrams of diindolylmethane17 (DIM), a compound produced in the body after consuming cruciferous vegetables like broccoli and cauliflower. Although DIM may reduce estrogen levels, it also possesses antiandrogen18 properties, which could block or suppress testosterone. However, evolving research19 indicates DIM may play a role in prostate cancer prevention and treatment. 

The inclusion of BioPerine®, a patented black pepper extract20, helps maximize the bioavailability of these ingredients. One thing we appreciate most about Transparent Labs products is their exclusion of artificial ingredients and additives. 

Transparent Labs’ Vitality is Informed Choice certified, indicating it has undergone third-party testing, meets international purity standards, and is free of banned substances. The latest third-party testing data for Vitality can be viewed on its product page.

Key ingredientsZinc, boron, ashwagandha, shilajit, tongkat ali, quercetin, DIM
Dosing instructionsTake 2 capsules (1 serving) 1-2 times daily with food
Price per serving$1.83

Best Testosterone Booster With Shilajit: XWERKS Rise

Good for: Anyone seeking a simple blend of micronutrients and herbal ingredients

Best With Shilajit


GGR Score: 4 starstarstarstarstar

Product Highlights

  • Muscle optimization supplement
  • XWERKS listed benefits include increased muscle mass, decreased fat, improved vitality, and will make you feel stronger
  • Multiple active ingredients: Tongkat ali, shilajit, boron, and zinc

Pros & Cons


  • No fillers or dyes
  • Sugar-free
  • Research-backed ingredients
  • 30-day refund policy
  • Made in the United States
  • XWERKS features studies backing the effectiveness of ingredients on their website


  • Uses a gelatin capsule so limits accessibility
  • Limited reviews
  • Mixed reviews on effectiveness

Bottom Line

XWERKS Rise is a muscle optimization supplement in capsule form. It features multiple natural ingredients including tongkat ali, shilajit, boron, and zinc. XWERKS shares that this supplement helps increase muscle mass, lose fat, and boost vitality. There are limited customer reviews.

XWERKS Rise aims to enhance muscle growth, energy, confidence, and strength by naturally optimizing nutrient and mineral levels. In addition to standard testosterone-boosting micronutrients such as zinc and boron, it features unique ingredients like tongkat ali and shilajit.

Tongkat ali14 (Eurycoma longifolia Jack) is well-regarded for its potential benefits to sexual function, exercise performance, weight loss, and overall vitality. Studies suggest that tongkat ali can increase serum testosterone levels and is celebrated as an aphrodisiac21, enhancing sexual desire, pleasure, and performance. XWERKS provides 400 milligrams of tongkat ali per serving, aligning with the dosage commonly examined in research.21

Shilajit13, a unique natural substance from the Himalayas, is valued in Ayurvedic medicine for its potential in treating chronic diseases. Research22 infers that 500 milligrams of shilajit daily may increase testosterone levels and support muscle and connective tissue health during intense exercise. While XWERKS Rise contains only 250 milligrams per serving, it’s the only supplement with Shilajit on our best-of list. 

RELATED: XWERKS Grow Whey Protein Review

XWERKS Rise also includes BioPerine to enhance the bioavailability and effectiveness of its formula. It maintains a commitment to a minimal ingredients list, avoiding added sugars, fillers, and dyes. However, it lacks proof of third-party testing, which would be a valuable addition.

Key ingredients Zinc, boron, tongkat ali, shilajit
Dosing instructionsTake 1-2 capsules daily
Price per serving$1.67

Best Testosterone Booster With D-Aspartic Acid: Testogen

Good for: Those interested in herbal components and micronutrients to support hormonal and overall health

Best With D-Aspartic Acid


GGR Score: 4 starstarstarstarstar

Product Highlights

  • Testosterone supplement in capsule form
  • Testogen states it helps you feel stronger, healthier, and more focused, energized, and confident
  • Multiple active ingredients

Pros & Cons


  • Made in the United States and United Kingdom in GMP certified facilities
  • Free worldwide shipping
  • Three free gifts with purchase: muscle building guides, 40 recipes, and weekly lifestyle content
  • Subscribe and save 20%
  • Gluten-, soy-, GMO-, and synthetic-free
  • Website includes links to clinical studies backing ingredients
  • Transparent formula—no proprietary blends


  • Expensive at more than $2 per serving
  • Not sold in stores—only available online
  • Serving size is large at 4 capsules
  • Manufactured in a facility that also processes milk, soy wheat, wheat, egg, peanuts, tree nuts, fish, and shellfish

Bottom Line

Testogen is a supplement with a transparent formula and 11 active ingredients. Testogen shares that their supplement helps users feel more energized, focused, stronger, healthier, and more confident. There are numerous positive customer reviews on the website.

Testogen is a testosterone booster that makes bold claims, including energy, mood, focus, and vitality improvements in as little as two weeks. It is marketed as having a 100 percent transparent formula—but let’s examine the 11 ingredients more closely.

The first ingredient is 2,352 milligrams of  D-aspartic acid23, an amino acid found in central nervous and reproductive tissues. Although a 2023 meta-analysis published in the International Journal of Impotence Research24 indicates DAA does not significantly increase total testosterone concentrations, some research25 supports its role in regulating the release and synthesis of LH and testosterone. 

Testogen notes, “Because it plays such a vital role in testosterone production and is backed by strong evidence supporting its powerful testosterone-boosting effects, Testogen contains more D-AA per serving than any other product on the market.” However, it is worth noting that some evidence26 shows high D-aspartic acid doses, particularly up to 6 grams, can lower testosterone levels. 

An open bottle of the Testogen supplement with some capsules .

Testogen also includes 40 milligrams each of nettle leaf, fenugreek, and Korean red ginseng (Panax ginseng) extracts. While research on the significance of nettle leaf and red ginseng on testosterone levels is lacking, fenugreek is among the most well-studied testosterone boosters. In a 2021 review27, virtually all studies indicate increased testosterone levels in healthy adults, yet researchers recommend further high-quality research.

The formula also contains various micronutrients—like zinc (10 milligrams), boron (8 milligrams), magnesium (200 milligrams), vitamin D3 (50 micrograms), vitamin K1 (20 micrograms), and vitamin B6 (20 milligrams)—to enhance hormone health and wellness. Its five milligrams of BioPerine may improve the absorption of this multi-ingredient formulation.

Testogen also offers Booster Drops formulated with herbal and natural ingredients, including Moringa oleifera and L-arginine, to enhance the effectiveness of Testogen capsules. However, despite Testogen’s claim of not using proprietary blends, the exact dosage for each ingredient in the drops is not disclosed.

Key ingredients D-aspartic acid, nettle leaf, fenugreek, red ginseng, zinc, boron, magnesium, vitamins D, K, and B6
Dosing instructionsTake 4 capsules 20 minutes before breakfast
Price per serving$2.00

Best Testosterone Booster With Ashwagandha: Kaged Test Elite

Good for: Anyone seeking an herbal formula to reduce stress, balance hormones, and enhance blood flow

Best With Ashwagandha

Kaged Test Elite

GGR Score: 4.2 starstarstarstarstar

Product Highlights

  • Natural testosterone support supplement
  • Multiple active ingredients: MR-10, KSM-66, S7, Diindolylmethane (DIM), vitamin D3, L-Optizinc, and boron
  • Kaged shares Test Elite increases free total testosterone and promotes healthy cortisol levels to create an anabolic environment
  • Listed benefits include: improved muscle growth, strength, vitality, and well being
  • Start to see results within a few weeks

Pros & Cons


  • Third-party tested
  • Non-GMO, gluten free and vegan ingredients


  • Large servings size of 3 capsules
  • Very limited reviews
  • Price per serving is more than $2

Bottom Line

Kaged Test Elite is a natural testosterone support supplement that Kaged states improves muscle growth, strength, vitality, and well being. There are seven active ingredients including: MR-10, KSM-66 ashwagandha, S7, Diindolylmethane (DIM), vitamin D3, L-Optizinc, and boron. There are very limited customer reviews but they are positive.

Kaged Test Elite claims to naturally increase testosterone levels and support sexual health through a blend of patented and innovative ingredients. It’s also marketed to enhance strength and lean mass, manage stress, and improve blood flow.

Kaged contains MR-10™28, a proprietary blend of botanical bioactive compounds derived from Korean dandelion and rooibos, touted to boost testosterone levels by protecting Leydig cells from age-related stress. Although some evidence29 supports this claim, individual research on Korean dandelion29 and rooibos30 is limited to animal studies. 

Kaged Test Elite includes 600 milligrams of KSM-66® ashwagandha, an herb recognized for its strong evidence28 in supporting hormone health. One study31 suggests supplementing 600 milligrams of ashwagandha for eight weeks is associated with increased testosterone concentrations.

RELATED: Best Time to Take Ashwagandha

Ashwagandha’s potential to boost testosterone may be related to stimulating gonadotropin-releasing hormone (GnRH), which in turn stimulates testosterone production, reduce oxidative stress, and inhibits aromatase (the enzyme that converts testosterone into estrogen). Ashwagandha31 may also lower cortisol levels, a stress hormone, which could in turn lead to higher testosterone concentrations.

The formula includes diindolylmethane (120 milligrams), vitamin D (1,500 IU), and zinc (15 milligrams) to support hormonal balance and overall health. It also contains S7™, a patented and proprietary mix of seven plant-based ingredients (like green coffee bean and tart cherry extracts), to enhance nitric oxide and improve blood flow and nutrient absorption. 

Although most Kaged products undergo third-party testing and are Informed-Sport Certified, the Test Elite product page does not indicate these credentials.

Key ingredients Korean dandelion, rooibos, ashwagandha, dim, vitamin D
Dosing instructionsTake 3 capsules in the morning or 2 capsules and 1 capsule in the afternoon, preferably with food
Price per serving$2.33

Best Testosterone Booster With Vitamin D: Ritual Essential for Men

Good for: Men aged 18 to 49 looking to fill nutrient gaps and optimize hormonal and overall health

Best With Vitamin D

Ritual Essential for Men Multivitamin 18+

GGR Score: 3.8 starstarstarstarstar

Product Highlights

  • Scientifically developed multivitamin
  • 10 ingredients to support health 
  • Vegan, gluten- and major allergen-free, non-GMO, and no artificial colors

Pros & Cons


  • Made Traceable with visible supply chain
  • Free shipping and money back guarantee with subscription
  • Delayed release capsule


  • Customer complaints about the mint flavor
  • Expensive at more than $1 per serving
  • Only available from company website
  • Limited number of customer reviews

Bottom Line

The Ritual Essential for Men Multivitamin 18+ is a well reviewed multivitamin with quality ingredients. The only notable complaint was the mint flavoring.

Ritual Essential for Men Multivitamin 18+ is a subscription-based, scientifically formulated multivitamin tailored for men up to age 49. While it’s not marketed as a testosterone booster, it contains vital micronutrients that support hormonal balance and overall health.

Including 50 micrograms (2,000 IU) of vitamin D3 is at the forefront, and observational studies32 link vitamin D deficiency with lower testosterone levels. Although there are no specific dosage recommendations for increasing testosterone, the daily tolerable limit for vitamin D33 is 100 micrograms (4,000 IU) per day. Moreover, research34 indicates that vitamin D3 is more effective at raising blood levels of vitamin D than vitamin D2.

ritual essential multivitamin for men over 50

In addition to vitamin D3, Ritual’s multivitamin incorporates other essential vitamins and minerals, such as zinc, magnesium, and boron, which play significant roles in testosterone synthesis. While direct evidence35 of these micronutrients enhancing testosterone levels through supplementation is limited, supplementing with them may be beneficial in cases of deficiency.

All ingredients in Ritual’s multivitamins are sourced from plant-based sources, making them suitable for men with various dietary preferences and lifestyles. We also appreciate Ritual’s commitment to its 30-day money-back guarantee, third-party testing, and traceable ingredients.

Key ingredientsVitamin D, zinc, magnesium, boron
Dosing instructionsTake 2 capsules daily
Price per serving$1.10

Best Testosterone Booster With DHEA: Legion Vitality

Good for: Individuals who don’t need to avoid banned substances

Best With DHEA

Legion Vitality Supplement

GGR Score: 3.5 starstarstarstarstar

Product Highlights

  • 100% natural vitality supplement in capsule form
  • 4 active ingredients
  • Legion Vitality listed benefits include: improving mood and hormone profile, supporting cognition, and decreasing fatigue and depressive symptoms
  • Contains DHEA

Pros & Cons


  • No artificial fillers, food dyes, or other chemical
  • Third-party lab tested for purity
  • “No return necessary” money-back guarantee
  • Made in the United States in NSF-certified facilities
  • Ingredient transparency—no proprietary blends
  • Gluten-, soy-, and dairy-free


  • Large serving size of 3 capsules
  • Product is manufactured in facility that may also process allergens including milk, soy, wheat, and nuts
  • Includes dehydroepiandrosterone (DHEA), a banned substance in multiple sports organizations including NCAA, NFL, and WADA

Bottom Line

Legion Vitality is a natural supplement to improve vitality. The active ingredients are rhodiola rosea, dehydroepiandrosterone (DHEA), bilberry extract, and vitamin B12. According to Legion, this supplement will improve mood and reduce stress related fatigue. However, this product is not right for competitive athletes as DHEA), is a banned substance by WADA, NCAA, the IOC, and NFL.

Legion is a trusted supplement brand due to its transparent formulations and scientific studies that match those on its site. We value Legion’s loyalty to third-party testing and showcasing certificates of analyses of its products, including its Vitality supplement. 

Dehydroepiandrosterone36 (DHEA), a natural precursor to testosterone and estrogen that can also be synthesized for dietary supplements, may increase free testosterone levels in middle-aged men and prevent declines during high-intensity interval training (HIIT), according to one study.37 In women, DHEA38 supplementation may improve sexual satisfaction, fertility, and age-related vaginal atrophy (the thinning, drying, and inflammation of the vaginal walls).

However, DHEA supplementation is not without risks—it’s been linked to hirsutism (excessive hair growth), cardiovascular issues, hepatitis (inflammation of the liver), manic symptoms, prostate cancer, and other side effects.37 Plus, DHEA is prohibited in sports by the World Anti-Doping Agency (WADA).

For those still considering Legion Vitality, it contains 150 milligrams of Rhodiola rosea.39 While research32 does not support Rhodiola rosea as a testosterone booster, it may enhance mental and physical performance, reduce fatigue and depression symptoms, increase work productivity, and offer antioxidant and anti-inflammatory benefits.

Legion Vitality is also formulated with 1,500 milligrams of bilberry40, which may reduce inflammation and improve cognition, among other benefits. It also contains six micrograms of vitamin B1241, a water-soluble vitamin crucial to forming healthy red blood cells and maintaining energy levels.

Like all Legion supplements, Vitality has a generous “no return necessary” money-back guarantee. So if you don’t absolutely love it, you can request a full refund without filling out a form. 

Key ingredientsDHEA, rhodiola rosea
Dosing instructionsTake 3 capsules daily, ideally in the morning with food
Price per serving$1.67

Best Testosterone Booster With Pomegranate and Cacao: Life Extension Testosterone Elite

Good for: Those aiming to balance hormones and enhance muscle growth with a single capsule

Best With Pomegranate and Cacao

Life Extension Testosterone Elite

GGR Score: 3.5 starstarstarstarstar

Product Highlights

  • Capsule supplement to promote healthy levels of testosterone
  • Active ingredients: Tesnor and luteolin
  • Life Extension lists benefits as promoting healthy testosterone levels and supporting physical strength

Pros & Cons


  • Gluten free, non-GMO, and vegetarian
  • Serving size is 1 capsule
  • Certificate of Analysis available for all products that verify ingredients on label


  • Only available in 1 flavor: pomegranate
  • Less active ingredients than similar products—only two

Bottom Line

Life Extension Testosterone Elite is a supplement that helps promote healthy testosterone levels. The supplement helps to support physical strength and other benefits of healthy testosterone levels.

One of our expert reviewers (and registered dietitian) said that Life Extension Testosterone Elite was the only testosterone booster he’s tried that actually increased his testosterone levels, as indicated by blood work, so we had to check it out for ourselves. 

Life Extension Testosterone Elite claims to promote healthy testosterone production and support physical strength by combining a patented blend of pomegranate and cacao extracts with luteolin. It specifically features 400 milligrams of Tesnor®—a proprietary blend comprising cocoa bean (Theobroma cacao) and pomegranate peel (Punica granatum)—and 275 milligrams of luteolin.

According to its sales sheet, clinical studies reveal Tesnor® significantly increases free and total testosterone, supports muscle strength and growth, and helps improve age-related symptoms. A deeper dive into studies related to Theobroma cacao and Punica granatum, notably a 2022 human clinical trial42 in healthy young males, reveals Tesnor’s manufacturer funds them. Although these ingredients could have merit, the results should be considered preliminary. 

Luteolin is a flavonoid believed to block the enzyme responsible for converting testosterone into estrogen and has garnered interest for its potential to enhance androgen production. However, research43 supporting its efficacy is predominantly based on animal studies.

Inconclusive data aside, Testosterone Elite boasts certifications for being non-GMO and gluten-free, is manufactured in the USA, and comes with a Certificate of Analysis for each batch produced. It’s also worth noting that the manufacturer warns that exposure to heat or sunlight may melt or damage the product; therefore, customers are advised to be present during delivery to ensure proper product handling.

Key ingredientsCocoa bean, pomegranate peel, luteolin
Dosing instructionsTake 1 capsule daily
Price per serving$1.35

Best Testosterone Booster With Magnesium and Zinc: JYM ZMA

Good for: Men and women focused on optimizing sleep, hormonal health, and exercise recovery

Best With Magnesium & Zinc

JYM ZMA Zinc and Magnesium

GGR Score: 3.9 starstarstarstarstar

Product Highlights

  • Reportedly helps hormone levels and supports muscle strength
  • 30 mg zinc, 10.5 mg vitamin B6, and 450 mg magnesium 
  • BioPerine to maximize absorption

Pros & Cons


  • Added BioPerine for better absorption
  • Users report sleeping soundly when using
  • Reportedly improved recovery


  • May have a laxative effect
  • Caused headaches for a few users
  • Website doesn't give references for the studies they mention

Bottom Line

JYM ZMA Zinc and Magnesium supplement is formulated with zinc, magnesium, vitamin B6, and black pepper extract designed to improve the quality of sleep and recovery.

JYM ZMA earned a spot on GGR’s best ZMA supplements roundup, standing out for its inclusion of BioPerine—a compound known to enhance the absorption of ingredients. Before diving deeper, let’s better understand what you might be absorbing.

JYM ZMA (zinc magnesium aspartate) combines 30 milligrams of zinc, 450 milligrams of magnesium, and 10.5 milligrams of vitamin B6. Some evidence44 suggests that ZMA supplements can boost free and total testosterone levels, which holds weight considering the roles these micronutrients play in testosterone production.

A hand holds up 2 capsules next to a bottle of Jym Zma.

Mary Sabat, MS, RDN, LD, a registered dietitian and ACE-certified personal trainer, cites ZMA’s potential to enhance muscle recovery, promote better sleep, and elevate energy levels. To give us a firsthand account, Jacob Penner, a USA Weightlifting Level 1 Coach and member of GGR’s expert panel, shared his experience: “I woke up feeling rested, and my dreams were f-ing bonkers.”

Although we’d like evidence of third-party testing, we particularly value its straightforward and clean ingredients list. It’s designed to be universally beneficial, providing recommended doses suitable for both men and women.

Key ingredientsZinc, magnesium, vitamin B6
Dose instructionsMen take 3 capsules; women take 2 capsules, ideally on an empty stomach about 30-60 minutes before bed
Price per serving$0.83

Best Testosterone Booster With Tongkat Ali: Momentous Tongkat Ali

Good for: Athletes and consumers in search of a single-ingredient product free of banned substances

Best With Tongkat Ali

Momentous Tongkat Ali

GGR Score: 4 starstarstarstarstar

Product Highlights

  • Herbal supplement to support hormone metabolism
  • Also known as Eurycoma longifolia
  • Listed benefits: increase testosterone, boost energy and mood, build stronger muscles, and accelerate recovery
  • Expect to see results in 2 to 4 weeks

Pros & Cons


  • Very affordable, less than $1 per serving
  • Gluten- and GMO-free
  • Website links to clinical research supporting Tongkat ali benefits
  • Third-party tested and Informed Sport-certified
  • Ships to over 200 countries
  • 30-day money-back guarantee


  • Limited reviews
  • Single active ingredient
  • Not available in stores—must purchase online

Bottom Line

Momentous Tongkat Ali is an herbal supplement. According to Momentous, this supplement can improve hormone activity and athletic performance. There are limited, but mostly positive, reviews.

Momentous offers simplicity with a single potent ingredient: 400 milligrams of tongkat ali. Research45 suggests properly standardized extracts of tongkat ali may improve hormonal health, mood, and overall well-being.

Eurycomanone, a major quassinoid in Eurycoma longifolia, appears to increase testosterone production. One study45 explains tongkat ali’s effectiveness in restoring normal testosterone levels is not so much due to stimulating testosterone synthesis directly, but rather by increasing the rate of free testosterone release from its binding hormone, sex-hormone-binding-globulin (SHBG). 

Standardized extracts of tongkat ali, with a high concentration of quassinoids (including 20 percent eurycomanone), may also inhibit estrogen production by targeting the aromatase enzyme, which converts testosterone into estrogen.14 While Momentous does not specify the standardization of its extract, evidence14 supports a daily dosage range of 200 to 400 milligrams for men, consistent with its 400-milligram serving. 

Momentous tongkat ali is third-party tested by Informed Sport, ensuring it’s free from banned substances, contaminants, and harmful ingredients. This independent verification offers reassurance regarding supplement safety and purity, especially for athletes subject to drug testing. 

Key ingredientsTongkat Ali
Dosing instructionsTake 2 capsules daily
Price per serving$0.66

Best Testosterone Booster With HMB: Optimum Nutrition HMB

Good for:  Individuals seeking a clinically dosed formula to improve athletic performance, muscle recovery, and hormone balance

Best With HMB

Optimum Nutrition HMB Caps

GGR Score: 3.8 starstarstarstarstar

Product Highlights

  • Calcium Beta-hydroxybutyrate Beta-methylbutyrate Monohydrate supplement
  • Also known as HMB
  • Supports improved muscle strength

Pros & Cons


  • Affordable at less than $1.50 per serving
  • Contains 3 grams of pure HMB


  • Large servings size of 3 capsules
  • Contains gelatin
  • Limited reviews
  • Customers report the capsule is large

Bottom Line

Optimum Nutrition HMB Capsules contain 3 grams of pure HMB, the only active ingredient. HMB is a metabolite of leucine, an amino acid. This supplement is designed to help support improvements in muscle strength. Some customers complained the large capsule was difficult to swallow.

Optimum Nutrition HMB is a clinically dosed, single-ingredient formula that delivers 3 grams of β-Hydroxy-β-methylbutyrate (HMB). Although it’s not explicitly marketed as a testosterone booster, the supplement may positively influence exercise performance and hormone levels.

β-Hydroxy-β-methylbutyrate (HMB) is a natural compound produced during the breakdown of the amino acid leucine. A 2022 review46 highlights HMB can minimize muscle breakdown induced by exercise while potentially enhancing strength, muscle mass, and overall exercise performance. 

Further support comes from a 2022 meta-analysis47, which suggests that HMB supplementation can reduce cortisol levels in resistance exercises and increase testosterone levels in combined aerobic and anaerobic activities. Despite calls from researchers for further studies involving a more comprehensive range of doses and exercises and inclusive of all genders, the consistent study of a 3-gram dose aligns with Optimum Nutrition HMB’s formulation.

RELATED: Optimum Nutrition Creatine Review

While Optimum Nutrition is recognized for its reputation and label transparency, it’s important to note the absence of third-party testing for its HMB product. Additionally, the capsules contain gelatin, making them unsuitable for vegan consumers.

Key ingredientsHMB
Dose instructionsTake 3 capsules daily
Price per serving$1.33

Best Testosterone Booster With Fenugreek: Testodren

Good for: Those aiming to optimize athletic performance, enhance recovery, and balance hormones

Best With Fenugreek

Testodren by PrimeGenix

GGR Score: 4 starstarstarstarstar

Product Highlights

  • Testosterone-boosting supplement
  • Listed benefits include: increased energy, focus, and motivation, improved physique, strength, and stamina
  • Features patented active ingredient Furosap

Pros & Cons


  • 67-day money-back guarantee
  • Tested in 3 human clinical trials
  • Gluten-, soy-, dairy-, and egg-free
  • Can purchase in stores like CVS, Walgreens, Walmart, and GNC


  • Patented formula
  • Clinical trials listed on site are not linked
  • Need to take at consistent time each day
  • Expensive at more than $2 per serving

Bottom Line

PrimeGenix Testodren is a testosterone-boosting supplement that features a patented ingredient Furosap, which is a component of the herb fenugreek. There are numerous positive reviews, although some customers complained it was difficult to find the product in-store.

Testodren is a single-ingredient testosterone booster that provides 500 milligrams of Furosap48, a patented extract enriched with 20 percent protodioscin derived from fenugreek seeds. It’s deemed safe and effective for improving testosterone levels, cardiovascular health, sperm quality, and mental alertness in males. A closer look at fenugreek itself is warranted since it’s claimed to be one of the most evidence-backed testosterone boosters available.27 

Fenugreek49 is a legume with nearly 175 beneficial compounds, including protodioscin prominent in Forusap, that may improve body composition, muscle strength and endurance, and post-exercise recovery. A 2021 review27  further highlights fenugreek’s general efficacy in boosting testosterone in healthy adults, though the scientific community calls for further, high-quality research to build upon.

A bottle of the Testodren supplement is shown next to some capsules.

While Testodren features a patented ingredient, the product’s website does not mention any third-party testing protocols. However, it is manufactured in an FDA-registered and inspected facility and adheres to Current Good Manufacturing Practices (cGMP) standards.

Testodren provides a specific 67-day money-back guarantee, but this offer is only valid for purchases made through the official website. The company also advises against purchasing their product from Amazon and eBay, warning of the potential for counterfeit pills and packaging.

Key ingredientsFenugreek extract
Dosing instructionsTake 1 capsule daily
Price per serving$2.00

Best Testosterone Booster With Ginseng: TestoFuel

Good for: Men aiming to fill nutrient gaps and support muscle growth, hormone health, immunity, and energy levels

Best With Ginseng


GGR Score: 4 starstarstarstarstar

Product Highlights

  • Testosterone support supplement
  • Listed benefits: muscle growth, increased strength, decreased body fat, improved mood, increased self-esteem, and faster recovery.
  • 10 active ingredients: D-Aspartic acid, vitamin D, oyster extract, ginseng, fenugreek, magnesium, vitamin K2, zinc, boron, maca

Pros & Cons


  • Free delivery to United States and United Kingdom
  • No proprietary ingredients
  • 10 active ingredients
  • Free gifts when purchasing 2 bottles—video programming and nutrition book


  • Not available in stores
  • Site features testimonials instead of reviews
  • Expensive at over $2 per serving
  • 4-capsule serving size

Bottom Line

Testofuel is a testosterone support supplement only available online. This supplement has 10 active ingredients that work together to boost your testosterone. According to Testofuel, this supplement will help increase strength, muscle growth, energy, mood, and improve recovery. There are no customer reviews available; the site has multiple testimonials instead.

TestoFuel is a multi-ingredient formula that claims to raise testosterone levels quickly, easily, and safely. Its “winning formula” combines well-known micronutrients—such as vitamin D (4,000 IU), vitamin K2 (18 mcg), magnesium (70 mg), zinc (10 mg), and boron (8 mg)—with distinctive herbal ingredients to support hormone health, energy, and muscle growth.

Our first ingredient of interest is 100 milligrams of Asian ginseng, an herbal adaptogen promoted to improve mood, exercise performance, cognition, and immunity. A review50 supports ginseng’s benefits for men’s hormone health, although further research is encouraged to understand its role in improving erectile function.

TestoFuel also introduces 180 milligrams of maca root extract, purported to boost testosterone levels by improving mood and well-being. However, research51 has not confirmed an increase in testosterone with maca supplementation at any dose, and its safety is yet to be fully assessed.

Additionally, 100 milligrams of oyster extract is included to boost zinc content and reproductive function, although evidence52 is primarily derived from animal studies. It also provides 2,000 milligrams of d-aspartic acid and 50 milligrams of fenugreek seed extract to support hormone health and muscle mass.

TestoFuel is produced in facilities certified by the FDA and cGMP. Despite assertions of being free from banned substances, there is a lack of evidence for third-party testing.

Key ingredientsGinseng, maca root, oyster extract, fenugreek, vitamin d, vitamin b6, magnesium, zinc, boron
Dose instructionsTake 4 capsules daily, ideally for two months
Price per serving$2.00

Other Testosterone Boosters We Researched

In our quest to identify the top choices, we also researched and evaluated the following:

We haven’t personally tested any of the above, but once we do, we’ll update this roundup. Additionally, consider exploring the best vitamin D and magnesium supplements, as deficiencies in these micronutrients are associated with low testosterone levels.

How We Picked and Tested the Best Testosterone Boosters

Navigating the world of testosterone boosters presents a unique challenge: There is no official standardization for the ingredients they should contain, unlike whey protein powder, where expectations are clear. Despite this, we leaned on our GGR supplement testing methodology to pick and test the best testosterone boosters:

  • Formulations: Although more research on testosterone boosters is needed, we included and emphasized supplements with the most scientifically backed components, like ashwagandha and vitamin D. 
  • Cost: We feature products across various price points to accommodate various budgets.
  • Third-party testing: We always prioritize products that undergo third-party testing to ensure safety and quality.
  • Brand reputation: Because a product is only as good as its brand, we evaluate its reputation through metrics such as customer reviews and return policies.

Benefits of Testosterone Boosters

Testosterone boosters are marketed as a natural way to increase testosterone levels. Theoretically, this could enhance the effects of testosterone and alleviate symptoms associated with hypogonadism, such as:

  • Improving erectile dysfunction and sex drive
  • Enhancing athletic performance
  • Increasing lean muscle mass and strength
  • Reducing body fat
  • Improving bone mineral density

Additionally, specific ingredients commonly found in testosterone boosters may offer benefits on their own, including the best ashwagandha supplements for stress relief and exercise recovery. However, little evidence supports the most popular components in testosterone boosters for increasing testosterone levels.27

Dr. Jeremie Walker, MD, a longevity expert at Opt Health, shares this view. He tells us: 

“The above retail testosterone boosters are all after the same end game: higher total and free testosterone levels. And many of them have a common thread: the list of ingredients. We see that most of the T-boosting supplements found over the counter focus on a handful of ingredients favored by nutritional science to support balanced hormone levels. You notice that none of them directly claim to raise testosterone because of the FDA criteria around structure and function labeling claims. 

On review, we see many testosterone boosters carrying a mix of zinc, ashwagandha, boron, and Shilajit. Some others to notice are Tongkat Ali, Fodogia Agretis, and BioPerine. Could one marginally benefit from some of these? Possibly, but where most people go wrong is they don’t test their T level to get a baseline and follow up with a repeat T-level, say 3 months later to see if there was a change from said baseline. 

What we have to be mindful of are all the other lifestyle optimization interventions one will go through while taking a mixed supplement. So, was it the supplement or merely the focus on nutrition, sleep, and exercise? I would argue the latter. 

Of importance here is that hormone levels change day to day, given the myriad of stressors and life conditions we throw at ourselves. I have seen guys have serial T checks over several weeks, and the T level is higher or lower by up to 100 points! I consider this a normal variation. Clinically, I have yet to see these alleged t-boosting supplements have sustainable or meaningful impacts on boosting testosterone.”

Dosing and Interactions 

The dosing and potential interactions of testosterone boosters can vary significantly depending on their ingredients. For instance, fenugreek may interact with antidiabetic medications, potentially lowering blood sugar levels to a dangerous range.

We recommend consulting a healthcare professional before starting any new supplement, especially if you have pre-existing health conditions or are taking medications. A doctor can assess whether your symptoms are related to low testosterone or if they stem from a different condition and offer personalized advice for achieving hormonal balance and overall health.

Third-Party Testing

The FDA does not tightly regulate dietary supplements, so we advise selecting products with third-party testing. For competitive athletes, it’s vital to choose supplements free of banned substances, such as those certified by Informed Choice and Informed Sport.

Buying Guide: What to Look for in Testosterone Boosters

When selecting a natural testosterone booster, keep the following considerations in mind:

  • Well-studied ingredients: Opt for ingredients with the most robust research support, like zinc and tongkat ali, and exercise caution with proprietary blends that do not disclose specific ingredients and doses.
  • Optimal dosages: Research on testosterone supplement dosing guidelines is scarce, so we highly recommend doing your due diligence on safe and effective dosages. Be mindful of potential overlaps, like vitamin D in your multivitamin, to avoid excessive intake.
  • Usage guidelines: Make sure the supplement aligns with your daily routine. For example, JYM ZMA is recommended for nighttime use, whereas some products encourage taking with food for optimal results. 
  • Dietary restrictions: Account for dietary restrictions, such as requiring a gluten-free product, to ensure the supplement suits your needs.
  • Third-party testing: Without FDA regulation for supplements, prioritize products verified by third-party organizations. 

Experts Who Contributed to This Article

  • Sydney Lappe, MS, RDN
  • Jacob Penner, USA Weightlifting Level 1 Coach
  • Mary Sabat, MS, RDN, LD
  • Dr. Jeremie Walker, MD

FAQs About Testosterone Boosters

What is the best testosterone booster that really works?

A systematic review24 indicates that most testosterone boosters do not effectively increase testosterone levels. However, 202127 and 202324 studies suggest that certain ingredients—such as tongkat ali, Serenoa repens (saw palmetto), ashwagandha, fenugreek, β-hydroxy β-methylbutyrate (HMB), and betaine—show the most promise.

Do testosterone boosters really work?

Research on whether testosterone boosters work is limited and mixed. Some studies indicate 25% of the ingredients in boosters are effective, while others suggest about 10 percent of the ingredients negatively impact testosterone.6

Which thing is best for a testosterone booster?

Studies reveal that while most testosterone boosters are ineffective, ingredients like tongkat ali, ashwagandha, fenugreek, HMB, and betaine show the most promise.

What is the best thing to increase testosterone?

The first recommended approaches for increasing testosterone levels often include testosterone replacement therapy or addressing the underlying cause of androgen deficiency.5 However, enhancing lifestyle factors53—such as diet, exercise, and sleep—can also prove beneficial.

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.


  1. Nassar GN, Leslie SW. Physiology, Testosterone. [Updated 2023 Jan 2]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK526128/
  2. Handelsman DJ. Androgen Physiology, Pharmacology, Use and Misuse. [Updated 2020 Oct 5]. In: Feingold KR, Anawalt B, Blackman MR, et al., editors. Endotext [Internet]. South Dartmouth (MA): MDText.com, Inc.; 2000-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK279000/ 
  3. Algburi HD Sr, Alhamza A, Mansour AA. Diurnal Variation of Serum Total Testosterone in Women: A Single-Center Study From Basrah. Cureus. 2023 Oct 25;15(10):e47677. doi: 10.7759/cureus.47677. PMID: 38021833; PMCID: PMC10673631.
  4. Kumar P, Kumar N, Thakur DS, et al. Male hypogonadism: Symptoms and treatment. J Adv Pharm Technol Res. 2010 Jul;1(3):297-301. doi: 10.4103/0110-5558.72420. PMID: 22247861; PMCID: PMC3255409.
  5. Rivas AM, Mulkey Z, Lado-Abeal J, et al. Diagnosing and managing low serum testosterone. Proc (Bayl Univ Med Cent). 2014 Oct;27(4):321-4. doi: 10.1080/08998280.2014.11929145. PMID: 25484498; PMCID: PMC4255853.
  6. Clemesha CG, Thaker H, Samplaski MK. ‘Testosterone Boosting’ Supplements Composition and Claims Are not Supported by the Academic Literature. World J Mens Health. 2020 Jan;38(1):115-122. doi: 10.5534/wjmh.190043. Epub 2019 Jun 14. PMID: 31385468; PMCID: PMC6920068.
  7. Osterberg EC, Bernie AM, Ramasamy R. Risks of testosterone replacement therapy in men. Indian J Urol. 2014 Jan;30(1):2-7. doi: 10.4103/0970-1591.124197. PMID: 24497673; PMCID: PMC3897047.
  8. Saper RB, Rash R. Zinc: an essential micronutrient. Am Fam Physician. 2009 May 1;79(9):768-72. PMID: 20141096; PMCID: PMC2820120.
  9. Te L, Liu J, Ma J, Wang S. Correlation between serum zinc and testosterone: A systematic review. J Trace Elem Med Biol. 2023 Mar;76:127124. doi: 10.1016/j.jtemb.2022.127124. Epub 2022 Dec 23. PMID: 36577241.
  10. Pizzorno L. Nothing Boring About Boron. Integr Med (Encinitas). 2015 Aug;14(4):35-48. PMID: 26770156; PMCID: PMC4712861.
  11. Monson NR, Klair N, Patel U, et al. Association Between Vitamin D Deficiency and Testosterone Levels in Adult Males: A Systematic Review. Cureus. 2023 Sep 24;15(9):e45856. doi: 10.7759/cureus.45856. PMID: 37750061; PMCID: PMC10518189.
  12. Lopresti AL, Drummond PD, Smith SJ. A Randomized, Double-Blind, Placebo-Controlled, Crossover Study Examining the Hormonal and Vitality Effects of Ashwagandha ( Withania somnifera) in Aging, Overweight Males. Am J Mens Health. 2019 Mar-Apr;13(2):1557988319835985. doi: 10.1177/1557988319835985. PMID: 30854916; PMCID: PMC6438434.
  13. Carrasco-Gallardo C, Guzmán L, Maccioni RB. Shilajit: a natural phytocomplex with potential procognitive activity. Int J Alzheimers Dis. 2012;2012:674142. doi: 10.1155/2012/674142. Epub 2012 Feb 23. PMID: 22482077; PMCID: PMC3296184.
  14. Rehman SU, Choe K, Yoo HH. Review on a Traditional Herbal Medicine, Eurycoma longifolia Jack (Tongkat Ali): Its Traditional Uses, Chemistry, Evidence-Based Pharmacology and Toxicology. Molecules. 2016 Mar 10;21(3):331. doi: 10.3390/molecules21030331. PMID: 26978330; PMCID: PMC6274257.
  15. Deepika, Maurya PK. Health Benefits of Quercetin in Age-Related Diseases. Molecules. 2022 Apr 13;27(8):2498. doi: 10.3390/molecules27082498. PMID: 35458696; PMCID: PMC9032170.
  16. Rotimi DE, Olaolu TD, Adeyemi OS. Pharmacological action of quercetin against testicular dysfunction: A mini review. J Integr Med. 2022 Sep;20(5):396-401. doi: 10.1016/j.joim.2022.07.001. Epub 2022 Jul 8. PMID: 35850969.
  17. Reyes-Hernández OD, Figueroa-González G, Quintas-Granados LI, et al. 3,3′-Diindolylmethane and indole-3-carbinol: potential therapeutic molecules for cancer chemoprevention and treatment via regulating cellular signaling pathways. Cancer Cell Int. 2023 Aug 26;23(1):180. doi: 10.1186/s12935-023-03031-4. PMID: 37633886; PMCID: PMC10464192.
  18. Grant P, Ramasamy S. An update on plant derived anti-androgens. Int J Endocrinol Metab. 2012 Spring;10(2):497-502. doi: 10.5812/ijem.3644. Epub 2012 Apr 20. PMID: 23843810; PMCID: PMC3693613.
  19. Tucci P, Brown I, Bewick GS, et al. The Plant Derived 3-3′-Diindolylmethane (DIM) Behaves as CB2 Receptor Agonist in Prostate Cancer Cellular Models. Int J Mol Sci. 2023 Feb 11;24(4):3620. doi: 10.3390/ijms24043620. PMID: 36835033; PMCID: PMC9962283.
  20. Butt MS, Pasha I, Sultan MT, et al. Black pepper and health claims: a comprehensive treatise. Crit Rev Food Sci Nutr. 2013;53(9):875-86. doi: 10.1080/10408398.2011.571799. PMID: 23768180.
  21. Kotta S, Ansari SH, Ali J. Exploring scientifically proven herbal aphrodisiacs. Pharmacogn Rev. 2013 Jan;7(13):1-10. doi: 10.4103/0973-7847.112832. PMID: 23922450; PMCID: PMC3731873.
  22. Keller JL, Housh TJ, Hill EC, et al. The effects of Shilajit supplementation on fatigue-induced decreases in muscular strength and serum hydroxyproline levels. J Int Soc Sports Nutr. 2019 Feb 6;16(1):3. doi: 10.1186/s12970-019-0270-2. PMID: 30728074; PMCID: PMC6364418.
  23. Melville GW, Siegler JC, Marshall PWM. The effects of d-aspartic acid supplementation in resistance-trained men over a three month training period: A randomised controlled trial. PLoS One. 2017 Aug 25;12(8):e0182630. doi: 10.1371/journal.pone.0182630. PMID: 28841667; PMCID: PMC5571970.
  24. Morgado A, Tsampoukas G, Sokolakis I, et al. Do “testosterone boosters” really increase serum total testosterone? A systematic review. Int J Impot Res. 2023 Sep 11. doi: 10.1038/s41443-023-00763-9. Epub ahead of print. PMID: 37697053.
  25. Topo E, Soricelli A, D’Aniello A, et al. The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. Reprod Biol Endocrinol. 2009 Oct 27;7:120. doi: 10.1186/1477-7827-7-120. PMID: 19860889; PMCID: PMC2774316.
  26. Melville GW, Siegler JC, Marshall PW. Three and six grams supplementation of d-aspartic acid in resistance trained men. J Int Soc Sports Nutr. 2015 Apr 1;12:15. doi: 10.1186/s12970-015-0078-7. PMID: 25844073; PMCID: PMC4384294.
  27. Lazarev A, Bezuglov E. Testosterone Boosters Intake in Athletes: Current Evidence and Further Directions. Endocrines. 2021;2(2):109-120. doi:https://doi.org/10.3390/endocrines2020011
  28. Noh YH. MR-10 Enhances Men’s Health by Improving Endogenous Male Sex Hormone Generation. J Med Food. 2018 Dec;21(12):1288-1294. doi: 10.1089/jmf.2018.4201. Epub 2018 Sep 4. PMID: 30179521; PMCID: PMC6306654.
  29. Chung HJ, Noh Y, Kim MS, et al. Steroidogenic effects of Taraxacum officinale extract on the levels of steroidogenic enzymes in mouse Leydig cells. Anim Cells Syst (Seoul). 2018 Nov 8;22(6):407-414. doi: 10.1080/19768354.2018.1494628. PMID: 30533263; PMCID: PMC6282421.
  30. Omolaoye TS, Windvogel SL, Du Plessis SS. The Effect of Rooibos (Aspalathus linearis), Honeybush (Cyclopia intermedia) and Sutherlandia (Lessertia frutescens) on Testicular Insulin Signalling in Streptozotocin-Induced Diabetes in Wistar Rats. Diabetes Metab Syndr Obes. 2021 Mar 19;14:1267-1280. doi: 10.2147/DMSO.S285025. PMID: 33776463; PMCID: PMC7989961.
  31. Smith SJ, Lopresti AL, Teo SYM, Fairchild TJ. Examining the Effects of Herbs on Testosterone Concentrations in Men: A Systematic Review. Adv Nutr. 2021 Jun 1;12(3):744-765. doi: 10.1093/advances/nmaa134. PMID: 33150931; PMCID: PMC8166567.
  32. Lerchbaum E, Trummer C, Theiler-Schwetz V, et al. Effects of vitamin D supplementation on androgens in men with low testosterone levels: a randomized controlled trial. Eur J Nutr. 2019 Dec;58(8):3135-3146. doi: 10.1007/s00394-018-1858-z. Epub 2018 Nov 20. PMID: 30460609; PMCID: PMC6842386.
  33. National Institutes of Health (2023). Vitamin D – Fact Sheet for Health Professionals. NIH Office of Dietary Supplements. https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/ 
  34. Armas LA, Hollis BW, Heaney RP. Vitamin D2 is much less effective than vitamin D3 in humans. J Clin Endocrinol Metab. 2004 Nov;89(11):5387-91. doi: 10.1210/jc.2004-0360. PMID: 15531486.
  35. Zamir A, Ben-Zeev T, Hoffman JR. Manipulation of Dietary Intake on Changes in Circulating Testosterone Concentrations. Nutrients. 2021 Sep 25;13(10):3375. doi: 10.3390/nu13103375. PMID: 34684376; PMCID: PMC8538516.
  36. ScienceDirect. (n.d.). Dehydroepiandrosterone. Dehydroepiandrosterone – an overview | ScienceDirect Topics. https://www.sciencedirect.com/topics/neuroscience/dehydroepiandrosterone 
  37. Liu TC, Lin CH, Huang CY, et al. Effect of acute DHEA administration on free testosterone in middle-aged and young men following high-intensity interval training. Eur J Appl Physiol. 2013 Jul;113(7):1783-92. doi: 10.1007/s00421-013-2607-x. Epub 2013 Feb 17. PMID: 23417481.
  38. Rutkowski K, Sowa P, Rutkowska-Talipska J, et al. Dehydroepiandrosterone (DHEA): hypes and hopes. Drugs. 2014 Jul;74(11):1195-207. doi: 10.1007/s40265-014-0259-8. PMID: 25022952.
  39. Ivanova Stojcheva E, Quintela JC. The Effectiveness of Rhodiola rosea L. Preparations in Alleviating Various Aspects of Life-Stress Symptoms and Stress-Induced Conditions-Encouraging Clinical Evidence. Molecules. 2022 Jun 17;27(12):3902. doi: 10.3390/molecules27123902. PMID: 35745023; PMCID: PMC9228580.
  40. Chu W, Cheung SCM, Lau RAW, et al. Bilberry (Vaccinium myrtillus L.) In: Benzie IFF, Wachtel-Galor S, editors. Herbal Medicine: Biomolecular and Clinical Aspects. 2nd edition. Boca Raton (FL): CRC Press/Taylor & Francis; 2011. Chapter 4. Available from: https://www.ncbi.nlm.nih.gov/books/NBK92770/
  41. National Institutes of Health (2024). Vitamin B12 – Fact Sheet for Health Professionals. NIH Office of Dietary Supplements. https://ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/ 
  42. Sreeramaneni PGA, Yalamanchi A, Konda MR, et al. A Proprietary Herbal Blend Containing Extracts of Punica granatum Fruit Rind and Theobroma cocoa Seeds Increases Serum Testosterone Level in Healthy Young Males: A Randomized, Double-Blind Placebo-Controlled Study. J Diet Suppl. Published online February 6, 2022:1-17. doi:https://doi.org/10.1080/19390211.2022.2035037
  43. Martin LJ, Touaibia M. Improvement of Testicular Steroidogenesis Using Flavonoids and Isoflavonoids for Prevention of Late-Onset Male Hypogonadism. Antioxidants (Basel). 2020 Mar 13;9(3):237. doi: 10.3390/antiox9030237. PMID: 32183155; PMCID: PMC7139932.
  44. Wilborn CD, Kerksick CM, Campbell BI, et al. Effects of Zinc Magnesium Aspartate (ZMA) Supplementation on Training Adaptations and Markers of Anabolism and Catabolism. J Int Soc Sports Nutr. 2004 Dec 31;1(2):12-20. doi: 10.1186/1550-2783-1-2-12. PMID: 18500945; PMCID: PMC2129161.
  45. Talbott SM, Talbott JA, George A, Pugh M. Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects. J Int Soc Sports Nutr. 2013 May 26;10(1):28. doi: 10.1186/1550-2783-10-28. PMID: 23705671; PMCID: PMC3669033.
  46. Kim D, Kim J. Effects of β-hydroxy-β-methylbutyrate supplementation on recovery from exercise-induced muscle damage: a mini-review. Phys Act Nutr. 2022 Dec;26(4):41-45. doi: 10.20463/pan.2022.0023. Epub 2022 Dec 31. PMID: 36775650; PMCID: PMC9925108.
  47. Zhao L, Mohammad M. Testosterone and cortisol responses to ß-hydroxy ß-methylbutryate consumption and exercise: A meta-analysis. Food Sci Nutr. 2022 Apr 15;10(9):2815-2824. doi: 10.1002/fsn3.2887. PMID: 36171789; PMCID: PMC9469850.
  48. Sankhwar SN, Kumar P, Bagchi M, et al. Safety and Efficacy of Furosap®, a Patented Trigonella foenum-graecum Seed Extract, in Boosting Testosterone Level, Reproductive Health and Mood Alleviation in Male Volunteers. J Am Nutr Assoc. 2023 Jan;42(1):27-35. doi: 10.1080/07315724.2021.1978348. Epub 2021 Oct 25. PMID: 34694954.
  49. Albaker WI. Fenugreek and Its Effects on Muscle Performance: A Systematic Review. J Pers Med. 2023 Feb 27;13(3):427. doi: 10.3390/jpm13030427. PMID: 36983608; PMCID: PMC10054907.
  50. Wang H, Zhang J, Ma D, et al. The role of red ginseng in men’s reproductive health: a literature review. Basic Clin Androl. 2023 Oct 26;33(1):27. doi: 10.1186/s12610-023-00203-0. PMID: 37880595; PMCID: PMC10601307.
  51. Aguilar-Morgan AA, Morgentaler A, Reyes-Vallejo LA. Testosterone Boosters: How Real Are Their Effects? Androgens: Clinical Research and Therapeutics. 2022;3(1):69-76. doi:https://doi.org/10.1089/andro.2022.0007
  52. Hoang TH, Liang Q, Luo X, et al. Bioactives From Marine Animals: Potential Benefits for Human Reproductive Health. Front Mar Sci. 2022;9. doi:https://doi.org/10.3389/fmars.2022.872775
  53. Riachy R, McKinney K, Tuvdendorj DR. Various Factors May Modulate the Effect of Exercise on Testosterone Levels in Men. J Funct Morphol Kinesiol. 2020 Nov 7;5(4):81. doi: 10.3390/jfmk5040081. PMID: 33467296; PMCID: PMC7739287.

Further reading

The Best Gifts for Personal Trainers to Fit Any Budget (2024) Cover Image
The Best Gifts for Personal Trainers to Fit Any Budget (2024)

If you’re wondering how to show appreciation to your favorite coach, have no fear. We have you covered in this curated list of gifts for personal trainers. Read more

Best BCAA For Women (2024): 6 Sports Dietitian-Approved Products Cover Image
Best BCAA For Women (2024): 6 Sports Dietitian-Approved Products

The best BCAA for women can help support strength training efforts, as well as muscle gain and recovery. Here are our top picks, approved by a sports dietitian. Read more

Best Black Friday/Cyber Monday Fitness Equipment Deals for 2024 Cover Image
Best Black Friday/Cyber Monday Fitness Equipment Deals for 2024

If you're looking for the Black Friday fitness sales on equipment, fitness trackers, apparel, shoes, and more, then this is the place to start! Read more

NordicTrack 2950 vs X22i (2024): Two Solid Machines With Large Touchscreens And Other Nice Specs Cover Image
NordicTrack 2950 vs X22i (2024): Two Solid Machines With Large Touchscreens And Other Nice Specs

It’s the clash of two incline trainer treadmills in the NordicTrack 2950 vs X22i comparison. Read more