All-Natural Greens Powder Supplement

Q: How do I use Genesis?

Mix 1 serving with 10-to-12 oz of cold water or your favorite beverage. Use first thing in the morning as a great way to jump start your day!

Q: What kind of benefits can I expect from Genesis?

Based on customer feedback, the most common things people notice after taking Genesis are . . . Better mood and overall well-being Sharper focus and clearer thinking Improved libido and sexual function Enhanced workout performance and recovery Genesis also supports several areas of health that you might not immediately feel. For example, a stronger immune system might not change how you feel day-to-day, but it can make you more resilient to illness.

Q: How quickly will I feel a difference with Genesis?

Many people notice benefits within the first few days, though for some it may take a few weeks of consistent use.

Q: I eat pretty healthily. Can I benefit from Genesis?

Absolutely. Genesis isn’t meant to replace a healthy diet—it’s designed to complement it. If your budget forces you to choose between whole, nutritious foods and supplements, choose food. But if you’re already eating well and can afford to supplement, that’s where Genesis fits in. Unlike many greens supplements that rely heavily on fruit and vegetable powders, Genesis provides clinically effective doses of ingredients you’re unlikely to get from your diet—like spirulina, matcha, maca, and astragalus. These “extra” ingredients are what really set Genesis apart from other greens supplements, and are what confer a variety of health benefits that you won’t get from others including better immune system support, enhanced mood and libido, sharper cognition, and improved body composition.

Q: I take a multivitamin. Can I benefit from Genesis?

Yes. This highlights a failing of many greens supplements: despite containing many whole-food ingredients, they’re often woefully low in certain essential micronutrients, unjustifiably high in others, and missing some altogether. On top of that, any “extra” ingredients they contain are usually too underdosed to offer meaningful benefits. Genesis is different. It’s not a multivitamin and it’s not trying to be. Instead, it delivers effective doses of ingredients you won’t get from your diet or a typical multivitamin. That’s why we recommend stacking it with our multivitamin, Triumph, for the most comprehensive spectrum of nutrients and compounds you’ll find in any two supplements.

Q: Genesis is kind of expensive. Why should I buy it over cheaper alternatives?

You can find cheaper greens supplements—but what are you really getting? Most hide underdosed ingredients behind proprietary blends or sprinkle in trendy compounds with little scientific backing. Genesis, on the other hand, provides clinically effective doses of four well-researched ingredients, contains no artificial fillers, food dyes, or other unnecessary junk, and is tested in an ISO 17025-accredited lab for purity and potency. It also has a transparent label with no proprietary blends, and is made in NSF-certified, FDA-inspected, and cGMP-compliant facilities.

Q: How do I know you’re not selling bottles of fillers like other supplement companies have been caught doing?

The best proof is how you feel. Most people notice sharper focus, better mood, improved well-being, and increased sex drive within a few days or weeks of starting Genesis. You can also rest easy knowing it’s made in the USA in a cGMP- and NSF-certified facility—one of the most respected in the industry, actually. We pay extra for this level of quality control because it’s the only way to guarantee you’re getting exactly what’s on the label.

Q: I hate vegetables. Can I just take Genesis instead?

No. Whole vegetables contain vitamins, minerals, fiber, and other beneficial compounds you simply can’t get from a supplement.

Q: I heard that greens supplements can contain a high amount of contaminants. Is that true?

Yes. The fruits, vegetables, herbs, and other plants provided by some suppliers can have dangerously high levels of toxins like arsenic, mercury, and lead. That’s why we’re very particular with the vendors we work with and why every batch of Genesis is tested for a wide variety of contaminants including heavy metals, mold, harmful bacteria, and other contaminants.

Q: What is the flavor? What does Genesis taste like?

Most greens supplements taste like lawn clippings. We weren’t okay with that. So we spent months developing a vanilla-based flavor system that’s light, smooth, and a major upgrade from the bitter, earthy sludge most people are used to. That said, some people try Genesis expecting it to taste like protein powder or pre-workout—which it doesn’t. Those are meant to be sweet and indulgent. Greens aren’t. Still, most people find Genesis surprisingly pleasant—even mixed with just water (and even better with vanilla protein powder!). If you don’t, you can always take us up on our 100% money-back guarantee: If you don't absolutely love Genesis, you get a prompt and courteous refund. No forms or returns necessary.

Home / Products / Supplements / Genesis

If you don’t like something of ours, guess what happens next?

No, we don’t request you deliver it to a PO box in the Gobi Desert by carrier pigeon. Nor do we ask you to fill a cursed inkwell with orc’s blood and demon saliva and then use it to complete reams of return forms written in ancient Cyrillic script.

We just . . . wait for it . . . give you every penny of your money back. Holy moo cows. And that means you can say "yes" now and decide later.

Notice to California Consumers

WARNING: Consuming this product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.

Legion Genesis Ingredients (13.5 grams per serving)

Spirulina (6 grams per serving)

Spirulina is a cyanobacterium (a type of bacteria that can make their own food from sunlight) that’s one of nature’s richest and most complete sources of vital nutrients. It’s especially high in B vitamins, minerals, essential fatty acids, and a powerful antioxidant compound called phycocyanin.

Research shows that supplementation with spirulina . . .

Supports immune function[8][9]
Enhances strength and endurance[10][11]
Delays the onset of exercise-induced fatigue[12]
Supports fat loss[13][14]
Reduces exercise-induced muscle damage[15]
Supports liver health[16]
Helps the body eliminate heavy metals[17]

The clinically effective dose of spirulina is between 2 and 10 grams, with most benefits seen in the 5-to-10-gram range.

Astragalus Membranaceus (3 grams per serving)

Astragalus membranaceus (also known as Mongolian milkvetch) is a herb that has long been used in traditional Chinese medicine to boost stamina and vitality and promote longevity.

It contains numerous beneficial compounds, including flavanoids and polysaccharides, but one of the more notable is astragaloside IV—a compound that helps protect cells from oxidative stress.[18]

Research shows that supplementation with Astragalus membranaceus . . .

Supports immune function, even during periods of physical stress[19][20][21]
Reduces muscle damage and may help restore strength faster after training[22]
May help protect cells from oxidative stress[23]
May support healthy aging by promoting DNA integrity[24][25]

The clinically effective dose of Astragalus membranaceus is 15 grams of the raw root. Genesis contains 3 grams of a 5:1 Astragalus membranaceus extract per serving, providing the equivalent of 15 grams of the raw root.

Organic Matcha Tea (3 grams per serving)

Matcha is a powdered form of Japanese green tea. Unlike regular green tea, matcha leaves are shaded several weeks before harvest, then steamed, destemmed, and stone-ground to preserve their nutritional profile.

As a result, matcha is rich in epigallocatechin gallate (EGCG), a substance linked to a range of cognitive benefits, and theanine, an amino acid that regulates neurotransmitters involved in mood and focus.

EGCG also helps you maintain a healthy body composition by slowing the breakdown of norepinephrine, a chemical that increases energy expenditure and fat burning.

Research shows that supplementation with matcha tea . . .

Supports cognitive performance[26][27]
Increases energy expenditure and fat burning[28][29][30][31][32][33][34][35]
May enhance the fat-burning effects of exercise[36][37][38][39]

The clinically effective dose of matcha tea is 2-to-3 grams per day.

Maca (1.5 grams per serving)

Maca (also known as Lepidium meyenii) is a plant native to the Andean regions of Peru and Bolivia. Its root has been cultivated for thousands of years, and was an integral part of the diet and commerce of the ancient Incan civilization.

It contains a variety of bioactive compounds, including alkaloids, glucosinolates, and macamides, which influence nerve communication, brain chemistry, and various regulatory pathways.

Research shows that supplementation with maca . . .

Supports mood and subjective sense of well-being[40][41][42]
Supports sexual function and libido in men and women[43][44][45]
Improves sperm production and quality[46]
May improve energy levels[47]
May enhance endurance, strength, and power[48][49]

The clinically effective dose of maca extract is between 1 and 3 grams per day.

Naturally Sweetened and Flavored

While artificial sweeteners may not be as dangerous as some people claim, studies suggest that regular consumption of these chemicals may indeed be harmful to our health.[50][51][52][53][54][55]

That’s why we use the natural sweetener stevia instead. Research shows that this ingredient is not only safe but can also confer several health benefits, including better nutrient absorption, healthy cholesterol levels, and more.[56][57][58][59]

No Artificial Food Dyes or Other Chemical Junk

No Artificial Food Dyes, Fillers, or Other Unnecessary Junk

As with artificial sweeteners, studies show that artificial food dyes and fillers can cause negative effects in some people, including gastrointestinal toxicity and behavioral disorders.[60][61][62][63][64]

That’s why we use natural coloring and flavoring derived from fruits and other foods as well as naturally derived ingredients for improving texture, enhancing shelf life, and facilitating the manufacturing process.

Third-Party Lab Tested for Purity and Potency

Genesis is tested by a state-of-the-art ISO 17025-accredited third-party laboratory for heavy metals, microbes, allergens, and other contaminants to ensure compliance with FDA purity standards.

Third-Party Lab Tested for Potency & Purity

See how Legion Genesis compares to the rest.

Active Ingredients
Clinically Effective Ingredients & Doses
Spirulina
Astragalus Membranaceus
Organic Matcha Tea
Maca
Naturally Sweetened & Flavored
Third-Party Lab Tested
Labdoor Certified Brand
Price Per Serving

Legion
Genesis
13.5 g
per serving
6 g
per serving
1.25 g
per serving
3 g
per serving
1.5 g
per serving
$

Athletic
Greens
10.31 g
per serving
(proprietary blend)
A proprietary blend is a group of ingredients that lists their names but not amounts, making it impossible to know if the dosages are at clinically effective levels.
(proprietary blend)
A proprietary blend is a group of ingredients that lists their names but not amounts, making it impossible to know if the dosages are at clinically effective levels.
$3.30

Organifi
Greens Juice
7.05 g
per serving
(proprietary blend)
A proprietary blend is a group of ingredients that lists their names but not amounts, making it impossible to know if the dosages are at clinically effective levels.
(proprietary blend)
A proprietary blend is a group of ingredients that lists their names but not amounts, making it impossible to know if the dosages are at clinically effective levels.
$2.33

1stPhorm
Opti-Greens 50
9.03 g
per serving
(proprietary blend)
A proprietary blend is a group of ingredients that lists their names but not amounts, making it impossible to know if the dosages are at clinically effective levels.
$2.17

The #1 brand of naturally sweetened sports supplements.

We’ve sold over 5 million bags and bottles to over 1 million customers in 169 countries who have left us over 45,000 5-star reviews.

Clinically Effective Ingredients and Doses

Every active ingredient, form, and dose in Genesis is backed by peer-reviewed scientific research demonstrating clear benefits in healthy humans.

Naturally Sweetened and Flavored

Genesis is naturally sweetened with stevia and naturally flavored with extracts from fruit, vegetables, plants and other foods.

Total Label Transparency

We clearly list the dose of each ingredient in Genesis on the label—no proprietary blends or hidden ingredients—so you can verify our formulation’s validity and effectiveness.

Third-Party Lab Tested for Purity and Potency

Genesis is tested by a state-of-the-art ISO 17025-accredited third-party laboratory for heavy metals, microbes, allergens, and other contaminants to ensure compliance with FDA purity standards.

Made in the USA

Genesis is made in America with globally sourced ingredients in NSF-certified, FDA-inspected facilities that adhere to Current Good Manufacturing Practice (cGMP) standards.

100% Money-Back Guarantee

If you don't absolutely love Genesis, you get a prompt and courteous refund. No forms or returns necessary.

Trusted by scientists, doctors, and everyday fitness folk alike.

"Legion is science-based at its core. Not only do they dose all of their products based on the clinical doses proven to be effective by scientific studies, they go above and beyond the their competitors by funding new research."

Dr. Bill Campbell, PhD
Professor of Exercise Science at University of South Florida
"There are a lot of sleazy supplement companies out there, but Legion is not one of them. Their products are free of fillers and inactive ingredients and they take the time (and money) to test them with independent labs to ensure you're getting what you pay for."

Dr. Spencer Nadolsky, MD
Board-Certified Family Medicine Physician and a Diplomate of the American Board of Obesity Medicine
"When it comes to quality and integrity, Legion is among the best. Their products only include ingredients that are backed by research and in doses that are proven to be effective in scientific studies."

Sal Di Stefano, Justin Andrews, and Adam Schafer
Hosts of The Mind Pump Podcast
"Legion is a tremendous company run by people I trust and respect. The quality of their supplements is second to no one. And while I don’t use many supplements, the only ones I do come from Legion."

Jordan Syatt
Strength and Nutrition Coach
"Legion consults with nutrition experts to make honest, science-based products and then proves they're genuine with independent lab work. That's how all supplement companies should operate."

Menno Henselmans, MS
Founder of Bayesian Bodybuilding, Published Scientist, and Physique Coach
"Legion's customers are getting some of the best sports supplements on the market."
"Legion Pulse is the best overall pre-workout, especially for energy and focus."
"Legion Pulse is the best pre-workout of 2024."

Frequently Asked Questions

How do I use Genesis?

What kind of benefits can I expect from Genesis?

How quickly will I feel a difference with Genesis?

I eat pretty healthily. Can I benefit from Genesis?

I take a multivitamin. Can I benefit from Genesis?

Genesis is kind of expensive. Why should I buy it over cheaper alternatives?

How do I know you’re not selling bottles of fillers like other supplement companies have been caught doing?

I hate vegetables. Can I just take Genesis instead?

I heard that greens supplements can contain a high amount of contaminants. Is that true?

What is the flavor? What does Genesis taste like?

Can Genesis be taken while pregnant?

Is Genesis gluten-free?

Is Genesis vegan and vegetarian friendly?

What does the Prop65 warning on the labels mean?

+References

Some popular greens supplements are naturally sweetened and flavored. Some contain the right mix of high-quality ingredients. Some provide clinically effective doses. But only Genesis checks each of these boxes. ↑

While artificial sweeteners may not be as dangerous as some people claim, studies suggest that regular consumption of these chemicals may indeed be harmful to our health. That’s why we use the natural sweetener stevia instead. ↑

Every serving of Genesis contains 13.5 grams of active ingredients that have been shown to be safe and effective in peer-reviewed scientific research. ↑

Each active ingredient in Genesis is backed by published scientific studies that show benefits in healthy humans. ↑

That’s 361 pages of scientific research that shows Genesis works exactly like we say it does. ↑

Every bottle of Genesis is guaranteed to provide exactly what the label claims and nothing else—no heavy metals, microbes, allergens, or other contaminants. ↑

8. Enhancement of natural killer cell activity in healthy subjects by Immulina®, a Spirulina extract enriched for Braun-type lipoproteins.

Nielsen CH, Balachandran P, Christensen O, et al. Planta Med. Nov 2010;76(16):1802-8. doi:10.1055/s-0030-1250043 ↑

9. Effects on Spirulina Supplementation on Immune Cells' Parameters of Elite College Athletes

Zhang Y, Zhang Y, Wu W, et al. Nutrients. 2022;14(20):4346. Published 2022 Oct 17. doi:10.3390/nu14204346. ↑

10. Spirulina platensis Provides a Small Advantage in Vertical Jump and Sprint Performance But Does Not Improve Elite Rugby Players' Body Composition

Chaouachi M, Gautier S, Carnot Y, et al. J Diet Suppl. 2021;18(6):682-697. doi:10.1080/19390211.2020.1832639 ↑

11. Ergogenic and antioxidant effects of spirulina supplementation in humans

Kalafati M, Jamurtas AZ, Nikolaidis MG, et al. Med Sci Sports Exerc. Jan 2010;42(1):142-51. doi:10.1249/MSS.0b013e3181ac7a45 ↑

12. Spirulina supplementation improves oxygen uptake in arm cycling exercise

Gurney T, Spendiff O. Eur J Appl Physiol. Dec 2020;120(12):2657-2664. doi:10.1007/s00421-020-04487-2 ↑

13. Effects of Spirulina supplementation on obesity: A systematic review and meta-analysis of randomized clinical trials

Moradi S, Ziaei R, Foshati S, Mohammadi H, Nachvak SM, Rouhani MH. Complement Ther Med. Dec 2019;47:102211. doi:10.1016/j.ctim.2019.102211 ↑

14. Spirulina supplementation during gradual weight loss in competitive wrestlers

Bagheri R, Negaresh R, Motevalli MS, et al. Br J Nutr. Jan 28 2022;127(2):248-256. doi:10.1017/s000711452100091x ↑

15. Preventive effects of Spirulina platensis on skeletal muscle damage under exercise-induced oxidative stress

Lu HK, Hsieh CC, Hsu JJ, Yang YK, Chou HN. Eur J Appl Physiol. Sep 2006;98(2):220-6. doi:10.1007/s00421-006-0263-0 ↑

16. [Clinical and experimental study of spirulina efficacy in chronic diffuse liver diseases] Gorban EM, Orynchak MA, Virstiuk NG, Kuprash LP, Panteleĭmonova TM, Sharabura LB

. Lik Sprava. Sep 2000;(6):89-93. Kliniko-eksperymental'ne doslidzhennia efektyvnosti spiruliny pri khronichnykh dyfuznykh zakhvoriuvanniakh pechinky. ↑

17. Efficacy of spirulina extract plus zinc in patients of chronic arsenic poisoning: a randomized placebo-controlled study

Misbahuddin M, Islam AZ, Khandker S, Ifthaker Al M, Islam N, Anjumanara. Clin Toxicol (Phila). 2006;44(2):135-41. doi:10.1080/15563650500514400 ↑

18. Pharmacological effects of Astragaloside

Ren S, Zhang H, Mu Y, Sun M, Liu P. IV: a literature review. J Tradit Chin Med. 2013;33(3):413-416. doi:10.1016/s0254-6272(13)60189-2 ↑

19. The effect of Echinacea purpurea, Astragalus membranaceus and Glycyrrhiza glabra on CD25 expression in humans: a pilot study

Zwickey H, Brush J, Iacullo CM, et al.. Phytother Res. Nov 2007;21(11):1109-12. doi:10.1002/ptr.2207 ↑

20. A study on the immune receptors for polysaccharides from the roots of Astragalus membranaceus, a Chinese medicinal herbShao BM, Xu W, Dai H, Tu P, Li Z, Gao XM

. Biochem Biophys Res Commun. Aug 6 2004;320(4):1103-11. doi:10.1016/j.bbrc.2004.06.065 ↑

21. Standardized astragalus extract for attenuation of the immunosuppression induced by strenuous physical exercise: randomized controlled trial

Latour E, Arlet J, Latour EE, et al. J Int Soc Sports Nutr. Jul 16 2021;18(1):57. doi:10.1186/s12970-021-00425-5 ↑

22. Astragalosides Supplementation Enhances Intrinsic Muscle Repair Capacity Following Eccentric Exercise-Induced Injury

Yeh TS, Lei TH, Barnes MJ, Zhang L. Nutrients. Oct 17 2022;14(20)doi:10.3390/nu14204339 ↑

23. Pharmacological effects of Astragaloside IV: a literature review

Ren S, Zhang H, Mu Y, Sun M, Liu P. J Tradit Chin Med. 2013;33(3):413-416. doi:10.1016/s0254-6272(13)60189-2 ↑

24. The telomerase activator TA-65 elongates short telomeres and increases health span of adult/old mice without increasing cancer incidence

Bernardes de Jesus B, Schneeberger K, Vera E, Tejera A, Harley CB, Blasco MA.. Aging Cell. 2011;10(4):604-621. doi:10.1111/j.1474-9726.2011.00700.x ↑

25. A Natural Product Telomerase Activator Lengthens Telomeres in Humans: A Randomized, Double Blind, and Placebo Controlled Study

Salvador L, Singaravelu G, Harley CB, Flom P, Suram A, Raffaele JM. Rejuvenation Res. 2016;19(6):478-484. doi:10.1089/rej.2015.1793 ↑

26. Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals

Sakurai K, Shen C, Ezaki Y, et al. Nutrients. Nov 26 2020;12(12). doi:10.3390/nu12123639. ↑

27. Matcha consumption maintains attentional function following a mild acute psychological stress without affecting a feeling of fatigue: A randomized placebo-controlled study in young adults

Baba Y, Kaneko T, Takihara T. Nutr Res. Apr 2021;88:44-52. doi:10.1016/j.nutres.2020.12.024 ↑

28. Matcha Green Tea Drinks Enhance Fat Oxidation During Brisk Walking in Females

Willems MET, Şahin MA, Cook MD. Int J Sport Nutr Exerc Metab. Sep 1 2018;28(5):536-541. doi:10.1123/ijsnem.2017-0237 ↑

29. Three Weeks Daily Intake of Matcha Green Tea Powder Affects Substrate Oxidation during Moderate-Intensity Exercise in Females

Willems MET, Fry HL, Belding MA, Kaviani M. J Diet Suppl. 2021;18(5):566-576. doi:10.1080/19390211.2020.1811443 ↑

30. Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans

Dulloo AG, Duret C, Rohrer D, et al. Am J Clin Nutr. Dec 1999;70(6):1040-5. doi:10.1093/ajcn/70.6.1040 ↑

31. Physiological effects of epigallocatechin-3-gallate (EGCG) on energy expenditure for prospective fat oxidation in humans: A systematic review and meta-analysis

Kapoor MP, Sugita M, Fukuzawa Y, Okubo T. J Nutr Biochem. May 2017;43:1-10. doi:10.1016/j.jnutbio.2016.10.013. ↑

32. Effectiveness of green tea on weight reduction in obese Thais: A randomized, controlled trial

Auvichayapat P, Prapochanung M, Tunkamnerdthai O, et al. Physiol Behav. Feb 27 2008;93(3):486-91. doi:10.1016/j.physbeh.2007.10.009 ↑

33. Effect of Acute and Chronic Dietary Supplementation with Green Tea Catechins on Resting Metabolic Rate, Energy Expenditure and Respiratory Quotient: A Systematic Review

Rondanelli M, Riva A, Petrangolini G, et al. Nutrients. 2021;13(2):644. Published 2021 Feb 17. doi:10.3390/nu13020644. ↑

34. Body weight loss and weight maintenance in relation to habitual caffeine intake and green tea supplementation

Westerterp-Plantenga MS, Lejeune MP, Kovacs EM. Obes Res. Jul 2005;13(7):1195-204. doi:10.1038/oby.2005.142 ↑

35. The effects of green tea on weight loss and weight maintenance: a meta-analysis

Hursel R, Viechtbauer W, Westerterp-Plantenga MS.. Int J Obes (Lond). Sep 2009;33(9):956-61. doi:10.1038/ijo.2009.135 ↑

36. Green tea catechin consumption enhances exercise-induced abdominal fat loss in overweight and obese adults

Maki KC, Reeves MS, Farmer M, et al. J Nutr. Feb 2009;139(2):264-70. doi:10.3945/jn.108.098293 ↑

37. Matcha Green Tea Drinks Enhance Fat Oxidation During Brisk Walking in Females

Willems MET, Şahin MA, Cook MD. Int J Sport Nutr Exerc Metab. Sep 1 2018;28(5):536-541. doi:10.1123/ijsnem.2017-0237 ↑

38. The Effects of Green Tea Consumption and Resistance Training on Body Composition and Resting Metabolic Rate in Overweight or Obese Women

Cardoso GA, Salgado JM, Cesar MdC, Donado-Pestana CM. Journal of Medicinal Food. 2013/02/01 2012;16(2):120-127. doi:10.1089/jmf.2012.0062 ↑

39. Does green tea extract enhance the anti-inflammatory effects of exercise on fat loss? Bagheri R, Rashidlamir A, Ashtary-Larky D, et al

Br J Clin Pharmacol. Apr 2020;86(4):753-762. doi:10.1111/bcp.14176 ↑

40. “Subjective Effects of Lepidium meyenii (Maca) Extract on Well-Being and Sexual Performances in Patients with Mild Erectile Dysfunction: A Randomised, Double-Blind Clinical Trial, Teo Zenico, Arrigo F

G. Cicero, Linda Valmorri, Melissa Mercuriali, and Eduard Bercovich, ” Andrologia 41, no. 2 (2009): 95–99. doi: 10.1111/j.1439-0272.2008.00892.x. ↑

41. Acceptability, Safety, and Efficacy of Oral Administration of Extracts of Black or Red Maca (Lepidium meyenii) in Adult Human Subjects: A Randomized, Double-Blind, Placebo-Controlled Study

Gonzales-Arimborgo C, Yupanqui I, Montero E, et al.. Pharmaceuticals (Basel). 2016;9(3):49. Published 2016 Aug 18. doi:10.3390/ph9030049 ↑

42. Beneficial effects of Lepidium meyenii (Maca) on psychological symptoms and measures of sexual dysfunction in postmenopausal women are not related to estrogen or androgen content

Brooks NA, Wilcox G, Walker KZ, Ashton JF, Cox MB, Stojanovska L. Menopause. 2008;15(6):1157-1162. doi:10.1097/gme.0b013e3181732953. ↑

43. Beneficial effects of Lepidium meyenii (Maca) on psychological symptoms and measures of sexual dysfunction in postmenopausal women are not related to estrogen or androgen content

Brooks NA, Wilcox G, Walker KZ, Ashton JF, Cox MB, Stojanovska L. Menopause. 2008;15(6):1157-1162. doi:10.1097/gme.0b013e3181732953. ↑

44. “Effect of Lepidium meyenii (MACA) on Sexual Desire and Its Absent Relationship with Serum Testosterone Levels in Adult Healthy Men,”Gustavo F

Gonzales, Amanda Córdova, Karla Vega, Arturo Chung, Arturo Villena, Carmen Góñez, and Sonia Castillo, Andrologia 34, no. 6 (2002): 367–72. doi: 10.1046/j.1439-0272.2002.00519.x; ↑

45. “A Double-Blind, Randomized, Pilot Dose-Finding Study of Maca Root (L

meyenii) for the Management of SSRI-Induced Sexual Dysfunction,” Christina M. Dording, Lauren Fisher, George Papakostas, Amy Farabaugh, Shamsah Sonawalla, Maurizio Fava, and David Mischoulon, CNS Neuroscience & Therapeutics 14, no. 3 (2008): 182–91. doi: 10.1111/j.1755-5949.2008.00052.x. ↑

46. “Lepidium meyenii (Maca) Improved Semen Parameters in Adult Men,Gustavo F

Gonzales, Amanda Cordova, Carla Gonzales, Arturo Chung, Karla Vega, and Arturo Villena, ” Asian Journal of Andrology 3, no. 4 (2001): 301–03. ↑

47. Acceptability, Safety, and Efficacy of Oral Administration of Extracts of Black or Red Maca (Lepidium meyenii) in Adult Human Subjects: A Randomized, Double-Blind, Placebo-Controlled Study

Gonzales-Arimborgo C, Yupanqui I, Montero E, et al. Pharmaceuticals (Basel). 2016;9(3):49. Published 2016 Aug 18. doi:10.3390/ph9030049 ↑

48. Effect of Black Maca Supplementation on Inflammatory Markers and Physical Fitness in Male Elite AthletesLee E, Park M, Kim B, Kang S

. Nutrients. 2023;15(7):1618. Published 2023 Mar 27. doi:10.3390/nu15071618 ↑

49. A pilot investigation into the effect of maca supplementation on physical activity and sexual desire in sportsmen

Stone M, Ibarra A, Roller M, Zangara A, Stevenson E. J Ethnopharmacol. 2009;126(3):574-576. doi:10.1016/j.jep.2009.09.012 ↑

50. Splenda alters gut microflora and increases intestinal p-glycoprotein and cytochrome p-450 in male rats

Abou-Donia MB, El-Masry EM, Abdel-Rahman AA, McLendon RE, Schiffman SS. J Toxicol Environ Health A. 2008;71(21):1415-1429. ↑

51. What made Canada become a country with the highest incidence of inflammatory bowel disease: could sucralose be the culprit?

Qin X. Can J Gastroenterol. 2011;25(9):511. doi:10.1155/2011/451036 ↑

52. Consumption of artificial sweetener- and sugar-containing soda and risk of lymphoma and leukemia in men and women

Schernhammer ES, Bertrand KA, Birmann BM, Sampson L, Willett WC, Feskanich D. [published correction appears in Am J Clin Nutr. 2013 Aug;98(2):512]. Am J Clin Nutr. 2012;96(6):1419-1428. doi:10.3945/ajcn.111.030833 ↑

53. Fueling the obesity epidemic? Artificially sweetened beverage use and long-term weight gain

Fowler SP, Williams K, Resendez RG, Hunt KJ, Hazuda HP, Stern MP.. Obesity (Silver Spring). 2008;16(8):1894-1900. doi:10.1038/oby.2008.284 ↑

54. Artificial sweetener use among children: epidemiology, recommendations, metabolic outcomes, and future directions

Sylvetsky A, Rother KI, Brown R. Pediatr Clin North Am. 2011;58(6):1467-xi. doi:10.1016/j.pcl.2011.09.007 ↑

55. Gain weight by "going diet?" Artificial sweeteners and the neurobiology of sugar cravings:Yang Q

Neuroscience 2010. Yale J Biol Med. 2010;83(2):101-108. ↑

56. Steviol glycosides from Stevia: biosynthesis pathway review and their application in foods and medicine

Yadav SK, Guleria P.. Crit Rev Food Sci Nutr. 2012;52(11):988-998. doi:10.1080/10408398.2010.519447. ↑

57. Antioxidant, anti-diabetic and renal protective properties of Stevia rebaudiana

Shivanna N, Naika M, Khanum F, Kaul VK.. J Diabetes Complications. 2013;27(2):103-113. doi:10.1016/j.jdiacomp.2012.10.001 ↑

58. Safety Evaluation of Certain Food Additives: Prepared by the Sixty-Ninth Meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA)

World Health Organization. WHO Food Additives Series, No. 60. Geneva, Switzerland: World Health Organization; 2009. ↑

59. World Health Organization

Global Status Report on Noncommunicable Diseases 2009. World Health Organization; 2010. Accessed May 9, 2025. ↑

60. Toxicological significance of azo dye metabolism by human intestinal microbiota

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61. Artificial food dyes and attention deficit hyperactivity disorder

Kanarek RB. Nutr Rev. 2011;69(7):385-391. doi:10.1111/j.1753-4887.2011.00385.x. ↑

62. Meta-analysis of attention-deficit/hyperactivity disorder or attention-deficit/hyperactivity disorder symptoms, restriction diet, and synthetic food color additives

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63. Food additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community: a randomised, double-blinded, placebo-controlled trial

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Legion Genesis Ingredients (13.5 grams per serving)

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LegionGenesis

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