Anyone can say “backed by science.” We can prove it.
Our Scientific Advisory Board brings together experts in sports nutrition, exercise physiology, clinical medicine, and applied dietetics to advise on our approach to formulation, evidence standards, and product quality.
They lead labs, teach at academic institutions, work directly with athletes and patients, and have produced over 200 scientific publications and over 17,000 citations in peer-reviewed scientific journals and textbooks.
Their role isn't to simply endorse our products.
It's to help us pressure-test formulas, challenge assumptions, and strengthen the scientific rationale behind what we make so you can have greater confidence that Legion products are evidence-based, transparently labeled, and held to high standards for safety, purity, and quality.
More than merely “evidence-based.” Rigorously reviewed.
Every Legion formula starts with a question:
Is there enough evidence that a product in this category can actually produce meaningful benefits? Or put differently—how effective would this product need to be to be worth taking?
From there, our lead formulation scientist digs into the published literature on potential ingredients—what works in human studies, at what dose, and in what form.
Then we compare:
Can the ingredients that meet our evidence standards, at their studied doses, deliver the level of benefit we set out to hit?
And can we do it at a price that keeps the business running?
Once a formula clears our internal bar, it goes to the independent members of our advisory board.
Because we list every ingredient and dose on the label—no proprietary blends, no hidden formulas—the board can see exactly what's in each product and whether the science supports it.
They review the formula and whatever claims we plan to make, looking for anything they wouldn't put their name on: unsupported doses, overstated benefits, gaps in the evidence, or places where the product could be stronger.
Our goal is to only make products and claims that every board member can stand behind. Any member can refuse to endorse a product or claim, for any reason, at any time.
A product only moves to manufacturing—and eventually to you—after it passes both rounds: internal formulation and independent board review.
Not happy with your purchase?
Simply let us know, and you'll get a full refund, no questions asked. And you don't even need to return anything.
So that means you can say "yes" now and decide later.
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 it's your first order and you live in the United States, your order ships free. And if you're a returning customer, your order ships free when it's over $80.
And if you're not happy with your purchase?
Simply let us know, and you'll get a full refund, no questions asked. And you don't even need to return anything.
So that means you can say “yes” now and decide later.
Why the $199 minimum purchase amount for free shipping?
To quench our piggish lust for grubby profits in the eternal service of the dread lord Mammon?
Kind of. But not really. Because here's the truth:
Single-item orders are so blasted expensive to ship that we make very little profit on them. And no profits make the bean counters lose their marbles.
But when you order just one more item, it only costs us a few dollars more to ship both of them to you. Add a third item, and it's just a few more shekels to ship.
And that allows us to make a profit. Which keeps the bean counters happier than a hammer in a nail factory.
So, if it pleases your Grace, we humbly request your mercy and patronage notwithstanding the vexing free shipping minimum.
Why the $299 minimum purchase amount for free shipping?
To quench our piggish lust for grubby profits in the eternal service of the dread lord Mammon?
Kind of. But not really. Because here's the truth:
Single-item orders are so blasted expensive to ship that we make very little profit on them. And no profits make the bean counters lose their marbles.
But when you order just one more item, it only costs us a few dollars more to ship both of them to you. Add a third item, and it's just a few more shekels to ship.
And that allows us to make a profit. Which keeps the bean counters happier than a hammer in a nail factory.
So, if it pleases your Grace, we humbly request your mercy and patronage notwithstanding the vexing free shipping minimum.
Wait! Want to save 50% on your order of Legion supplements?
Use code NASM25 at checkout!
Buy one supplement, get one 50% off when you use code LEGION10 at checkout.
Split your entire online purchase into 4 interest-free payments, over 6 weeks with no impact to your credit.
25% today
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25% 6 weeks
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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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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.
