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You don’t need supplements to build muscle, lose fat, and get healthy. But the right ones can help.

That’s why over 350,000 discerning fitness folk have chosen Legion. Well, that and our 100% natural products, our clinically effective ingredients and doses, and our no-hassle money-back guarantee.

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100% Natural Ingredients

Our supplements don’t just “contain natural ingredients”—every ingredient is naturally sourced. We don’t use artificial or synthetic substances of any kind.

Clinically Effective Doses

Every ingredient and dose (important!) in our supplements is backed by peer-reviewed scientific research demonstrating clear benefits.

Naturally Sweetened & Flavored

Our supplements are naturally sweetened and flavored with healthy, plant-based sweeteners and flavors.

Lab Tested

Our supplements are tested by third-party labs for heavy metals, microbes, allergens, and other contaminants to ensure they meet FDA purity standards.

Made in USA

Our supplements are proudly made in America in NSF-certified and FDA-inspected facilities in accordance with the Current Good Manufacturing Practice (cGMP) regulations.

100% Money-Back Guarantee

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

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Which Product Is Right For Me?

I want to . . .

Not sure? Take the quiz.

Our secret? We spend more on our products. A lot more.

No cheap fillers. No cut-rate ingredients. No itty-bitty doses. This is Legion.

Sports nutrition companies are notorious money-grubbers. Their favorite way to cut costs is to use cheap ingredients and tiny doses, which is why their products are typically marked up 6-to-12 times.

That means instead of mostly paying for high-quality formulations that work, you’re mainly selling out for dodgy marketing gimmicks, giant retail margins, bloated sales commissions, and hefty wholesaler’s profits.

Legion is different. We cut out the middlemen and shenanigans so we can spend more on what really matters: making superior products with all-natural and clinically effective ingredients and dosages.

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Backed by our "No Return Necessary" money-back guarantee.

No matter what you decide to buy, you're always protected by our ironclad, 100% money-back guarantee that works like this:

If you don't absolutely love our stuff for whatever reason, you get a prompt and courteous refund. No forms to fill out or hoops to jump through.

That means you can say "yes" now and decide later. You really have nothing to lose.

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Supplement Companies Are Greedy

Supplement companies are notorious money-grubbers. Dishonesty, misdirection, and pseudoscience have been the standard. Until now.

Learn the Truth

Why We're Different

I founded Legion to create healthy, high-quality sport supplements based on sound science.

Hear the Story

What the Experts Are Saying

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  • Dr. Spencer Nadolsky, MD

    Board Certified Family Medicine Physician and a Diplomate of the American Board of Obesity Medicine

    "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. Grant Tinsley, PhD

    Associate Professor and Director of Energy Balance & Body Composition Laboratory at Texas Tech University

    "Legion produces the highest quality supplements on the market. The ingredients and doses in their products are selected according to the scientific research, and they're continually working to improve their formulations based on new research. Their commitment to rigorously evaluating and improving their products truly sets them apart in the sports nutrition industry."

  • Dr. Bill Campbell, PhD

    Professor of Exercise Science at University of South Florida

    "Many supplement companies claim they're ‘evidence-based’ and try to impress you by throwing a few scientific references on their product pages. 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. They don't just want to sell you supplements--they want to change the supplement industry for the better."

  • Menno Henselmans, MS

    Founder of Bayesian Bodybuilding, Published Scientist, and Physique 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."

  • James Krieger, MS

    Published Scientist, Author, and Speaker

    "There are three reasons I like Legion. First, they use ingredients backed by independent, peer-reviewed scientific studies. Second, the quality of their supplements exceeds many in the industry and you know you’re getting what’s on the label. Third, Mike Matthews is a solid evidence-based guy who doesn’t over-hype."

  • Chris Barakat, MS

    Published Scientist and Physique Coach

    "I've been involved in the supplement industry for over a decade now, and I can tell you that Legion is the ONLY company doing EVERYTHING right! They make effective products that are backed by scientific evidence, properly dose all of their ingredients, source every ingredient from the highest-quality sources, and are transparent about exactly what goes in each and every product."

  • Kurtis Frank

    Co-Founder and Former Lead Researcher & Writer of Examine.com

    "With Legion, you really do get what you pay for. Each and every product is packed with effective doses of effective ingredients, and what’s on the label is what's actually in the bottle."

  • Jordan Syatt

    Strength and Nutrition Coach

    "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."

  • Sal Di Stefano, Justin Andrews, and Adam Schafer

    Hosts of The Mind Pump Podcast

    "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."

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The #1 Brand of All-Natural Sports Supplements in the World

Over 300,000 customers served and 2,000,000 bottles sold!

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Backed by our "No Return Necessary" money-back guarantee.

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 with it complete reams of return forms written in ancient Cyrillic script.

We just . . . wait for it . . . give you your money back. Holy moo cows. And that means you can say "yes" now and decide later. You really have nothing to lose.

Free Worldwide Shipping & Returns

Many companies use shipping and handling fees to increase their profit margins, but here at Legion, we hate profits, so our shipping is free!

Okay, so we do dig on profits, but we also go in for happy customers, and free shipping works like gangbusters. So, if you live in the United States, your order ships free regardless of order size, and if you live elsewhere, your order ships free when it’s over $199.

Why the restriction on international orders? Unfortunately, shipping abroad is very expensive, and if we didn’t require a minimum order size, we’d lose a lot of money. But! We're also hustling to improve our international logistics and will be passing our savings along to our international customers.

Also, if you don’t absolutely love our stuff for whatever reason, we don’t request you deliver it to a PO box in the Gobi Desert by carrier pigeon.

We just . . . wait for it . . . give you your money back. No returns. No forms. No nonsense. Holy moo cows.

That means you can say “yes” now and decide later. You really have nothing to lose.

Clinically Effective Doses

Many ingredients in supplements don’t have any scientifically validated benefits, and many ingredients that do are often underdosed to the point of irrelevance.

That’s why we only use the choice ingredients and precise doses shown to be effective in peer-reviewed scientific studies.

Clinically Effective Doses

You need more than great ingredients to make great products—you also need proper doses. That’s why we use the precise doses of ingredients shown to be effective in peer-reviewed scientific studies.

100% Natural Ingredients

“Natural” doesn’t always mean “better,” but in many cases, natural ingredients are superior to artificial ones for various reasons, including purity, safety, and efficacy.

That’s why all of our ingredients in all of our products come from plant and animal sources, including sweeteners, colors, and flavors.

Made in USA

If you want to ensure the supplements you’re swallowing every day are safe and effective, you want products produced in the USA.

That’s why all of our supplements are made in America in NSF-certified and FDA-inspected facilities that operate in accordance with the Current Good Manufacturing Practice (cGMP) regulations.

Lab Tested

Did you know that supplements can contain dangerously high levels of toxins like lead, arsenic, and cadmium?

That’s why we test every ingredient of every supplement we produce for heavy metals, microbes, allergens, and other contaminants and ensure they meet the strict purity standards set by the FDA.

Naturally Sweetened & 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.

That’s why all of our supplements are naturally sweetened and flavored and contain no artificial food dyes, fillers, or other unnecessary junk.

Science-Backed Ingredients

Many ingredients in supplements don’t have any scientifically validated benefits. That’s why we only use choice ingredients shown to be effective in peer-reviewed scientific studies.

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Waiver and Release of Liability

In consideration of the services and/or products offered by Legion Athletics, Inc. (“Legion”) including, but not limited to, nutrition plans, exercise routines and coaching, and in addition to the payment of any fee or charge:

I knowingly and voluntarily enter into this waiver and release of liability and hereby waive any and all rights, claims or causes of action of any kind whatsoever arising out of my use of Legion’s services and/or products, and I hereby release and hold harmless Legion and its consultants, officers, contractors, agents, owners and employees from any and all responsibility, liability, cost and expenses, including for injuries, damages or disorders (physical, metabolic, or otherwise), resulting from my use of Legion’s services and/or products.

I understand that fitness activities including, but not limited to, strength, flexibility, and cardiovascular exercise, with or without the use of equipment, are potentially hazardous activities that involve a risk of injury and even death, and I am voluntarily participating in these activities and using equipment and machinery with knowledge of the risks involved. I hereby agree to assume and accept any and all risks of injury or death related to said fitness activities.

I understand Legion’s services and products are not meant to treat or manage any health conditions or circumstances, and I acknowledge that Legion has recommended I obtain a healthcare provider’s approval for my use of Legion’s services and/or products, through regular physical examination(s) and/or consultation. I acknowledge that I have obtained my healthcare provider’s approval or have decided to use Legion’s services and/or products without such approval and hereby assume all responsibility for my use of said services and/or products.

I understand that results from using Legion’s products and/or services are not guaranteed, and I agree to not hold Legion liable for any outcomes or lack thereof.

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Fact Checked

Our scientific review board of nutritionists, dietitians, molecular biologists, doctors, and other accredited experts is responsible for reviewing every article, podcast, and video we produce to ensure they’re evidence based, accurate, trustworthy, and current.

Thanks to their connections, credentials, and academic experience, this team of MDs, PhDs, and other professionals has access to a wealth of research published in the largest and most prestigious journals in the world.

This allows them to not only review individual studies but also analyze the overall weight of the evidence on any and all topics related to diet, exercise, supplementation, and more.

If you feel that any of our content is inaccurate, misleading, out-of-date, or anything less than factual, please let us know in the comments section of the article in question.

Evidence Based

We follow a detailed, rigorous, multi-step process to create content that meets the highest standards of clarity, practicality, and scientific integrity.

First, our research associates provide our editorial team with accurate, up-to-date, proven scientific evidence.

Then, our editorial team uses this research to draft articles and outlines for podcasts and videos.

Finally, our scientific review board reviews the content to ensure all key information and claims are backed by high-quality scientific research and explained simply and precisely.

If you feel that any of our content is inaccurate, misleading, out-of-date, or anything less than factual, please let us know in the comments section of the article in question.