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Scientific Advisory Board

Our scientific advisory board guides the scientific direction of Legion.

It’s comprised of researchers, scientists, and thought leaders. Rather than endorsing individual products, they advise our team on product identification and development, relevant clinical studies, and ongoing research.

Scientific Direction

The board advises on improving existing and new formulations, translating published research into potential products, and pursuing new avenues of research.

Product Discovery

Legion’s board members participate in various fields of study, including protein metabolism, muscle hypertrophy, and exercise performance. They also work in a variety of roles such as obesity specialists, nutritionists, clinicians, and scientists, and their expertise and experience allows Legion to research and create superior, scientifically validated products.

Institutional Connections

Our board's relationships with academic institutions like the American Journal of Clinical Nutrition, the International Sports Sciences Association, and the Journal of the International Society of Sports Nutrition give us access to intellectual property, the opportunity to sponsor clinical trials, and connections to top researchers.

Meet Our Team

Kurtis Frank

Director of Research for Legion
and Co-Founder of Examine.com

One day, Kurtis Frank became enamored of the idea that "you are what you eat”—that what goes into your body ultimately influences every aspect of who you are and who you will become.

During his undergraduate studies in human nutrition, he co-founded the website Examine.com to gather and present as much evidence-based information on dietary supplements as possible in as unbiased a manner as possible.

To that end, Kurtis worked tirelessly for seven years to make Examine the premier resource on the Internet for learning about the science of supplementation. Today, it boasts guides on over 500 supplements containing over 41,000 scientific citations.

Kurtis then joined our team here at Legion to take an active role in managing our scientific advisory board, creating new and improving existing formulations, writing informative articles on our blog, and generally guiding the scientific direction of the company.

We’re thrilled to have Kurtis on board because we couldn’t be in better hands. He understands supplementation on a level that most scientists never will, let alone formulators, and strives to not only push the envelope of what can be achieved with supplementation, but to also raise the bar of safety, ethics, and cost efficiency.

Dr. Spencer Nadolsky

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

Dr. Nadolsky's love for using lifestyle as medicine arose out of a passion for sports, where he used exercise and nutrition science to become the heavyweight wrestling champion at UNC Chapel Hill.

During medical school, Dr. Nadolsky attended multiple obesity medicine conferences and realized that the same exercise and nutrition principles used for improving sports performance could also be used by the general public to combat obesity, diabetes, and other lifestyle diseases.

To further hone his skills, Dr. Nadolsky attended VCU’s Riverside Family Medicine Residency in Newport News, Virginia. He is the author of The Fat Loss Prescription, and now practices medicine online via SteadyMD, a pioneering new system for delivering remote medical care.

Learn more about Dr. Nadolsky and his work drspencer.com

Dr. Eric Helms

Published Scientist, Natural Bodybuilder, Coach, and Educator

As a researcher, Dr. Helms has studied ideal protein requirements for athletes, advanced training methods for strength and muscle gain, and how to optimally combine diet and training practices for bodybuilding.

Dr. Helms' work has been published in multiple scientific journals, including the Journal of the International Society of Sports Nutrition, the Journal of Strength and Conditioning Research, and the International Journal of Sport Nutrition and Exercise Metabolism.

Outside the lab, Dr. Helms has coached hundreds of drug-free strength and physique competitors at all ability levels through the bodybuilding consultancy 3D Muscle Journey.

Dr. Helms has taught undergraduate and graduate-level nutrition and exercise science and speaks internationally at academic and commercial conferences. He has a B.S. in fitness and wellness, an M.S. in exercise science, a second masters in sports nutrition, a Ph.D in strength and conditioning, and is a research fellow for Auckland University of Technology at the Sports Performance Research Institute New Zealand.

Beyond Dr. Helms' roles as an educator and author, Dr. Helms earned pro status as a natural bodybuilder with the PNBA in 2011 and competes in the International Powerlifting Federation at as an unequipped powerlifter.

Learn more about Dr. Helms and his work muscleandstrengthpyramids.com

Menno Henselmans

Founder of Bayesian Bodybuilding, Published Scientist, and Physique Coach

As a peer-reviewed researcher, Menno has investigated the optimal rest period length for muscle growth, the effects of protein supplements on muscle growth and strength, and the effects of HMB supplementation on performance and body composition.

Once a former business consultant specialized in advanced statistical data analysis, Menno traded his company car to do what he’s truly passionate about: helping serious athletes attain their ideal physiques. He used his background in statistical analysis as the basis for his philosophy on diet and training to create the Bayesian Personal Training Certification Program (PT Course).

Menno is an international public speaker, presenting at BodyPower, the Norwegian Academy for Personal Training (AFPT), Paleo f(x), Intelligent Strength, and the Oxford and Cambridge Alumni Association. His writing has been translated into Dutch, Norwegian, Spanish, Polish, Turkish, Italian, Chinese, Portugese, and German.

Menno graduated with a BSc magna cum laude from Utrecht University's international honor's college UCU, and went on to earn his MSc with distinction from the University of Warwick.

Learn more about Menno and his work bayesianbodybuilding.com

James Krieger

Published Scientist, Author, and Speaker

James is the former research director for a corporate weight management program that treated over 400 people per year, with an average weight loss of 40 pounds in the first 3 months. His former clients include the founder of Sylvan Learning Centers and The Little Gym, the vice president of Costco, and a former vice president of MSN.

Throughout his 20-year career, James has given over 75 lectures on fitness-related topics to physicians, dietitians, and other health professionals, and has been a speaker at events such as the AFPT Conference and NSCA Personal Training Conference.

James has written over 500 articles for the general public, and his work has been published in multiple scientific journals, including the American Journal of Clinical Nutrition and the Journal of Applied Physiology. In his lay publication, Weightology Weekly, he wrote over 70 articles per year covering the latest scientific research on supplementation, nutrition, and exercise science.

James earned his Master's degree in Nutrition from the University of Florida and a second Master's degree in Exercise Science from Washington State University.

Learn more about James and his work weightology.net

Daniel Lennon

Founder of Sigma Nutrition, Researcher, Writer, and Speaker

Daniel hosts the top-ranked weekly podcast, Sigma Nutrition Radio where he interviews world-renowned experts from the fields of nutrition, medicine, and sports performance. The show has been downloaded over 1.8 million times and is regularly at the top of the iTunes health and fitness charts.

Daniel also works as a performance nutritionist for a number of professional MMA fighters and boxers.

Daniel earned his master’s degree (MSc.) in Nutritional Sciences at University College Cork, and studied the effects of vitamin D directly under the world-renowned researcher Professor Kevin Cashman.

Outside of his professional career, Daniel is a Brazilian Jiu-Jitsu blue belt, powerlifter, and a lifelong Arsenal fan.

Learn more about Daniel and his work sigmanutrition.com

Dr. Brad Dieter

Published Scientist, Writer, and Educator

Dr. Dieter holds both a Master's of Science and a Doctor of Philosophy. In addition to his lab and biostatistics work, Dr. Dieter is passionate about scientific outreach and educating the public through his role on Scientific Advisory Boards and regular articles on health, nutrition, and supplementation on his website, ScienceDrivenNutrition.com.

Dr. Dieter also works on clinical trial design and data analysis in order to examine how novel therapies impact disease, and their potential side effects. His long-term scientific career goal is to lead a research team that makes major inroads in health care and improves treatment options for chronic disease.

Learn more about Dr. Dieter and his work sciencedrivennutrition.com

Try Us Risk-Free with Our 100% Money-Back Guarantee

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Our 100% "It’s-On-Us" 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.

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 100% free!

Okay, 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 anywhere else, 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.

That said, as most international customers spend about $200 with us each time they shop, this setup is a win-win.

And 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.

Clinically Effective Doses

Great ingredients aren't enough to make a great product—you also need correct doses.

That’s why we use the exact doses of every ingredient that have safely produced the desired benefits in peer-reviewed studies.

Made in USA

Where your supplements are made matters, because rules and regulations regarding quality and purity differ from country to country.

And 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.

We pay a premium to work with the best manufacturers in the country, but it’s the only way we can also produce the best all-natural sports supplements.

Lab Tested

Did you know that studies have shown that many supplements contain dangerously high levels of toxins like lead, arsenic, and cadmium?

Not ours.

Every ingredient of every supplement we produce is tested for heavy metals, microbes, allergens, and other contaminants to 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 and that more research is needed.

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 & Doses

Unlike some supplement companies, we don’t sell dubious white labeled or off-the-shelf formulations.

Instead, our custom and unique formulations are the result of extensive reviews of the scientific literature to discover the most effective ingredients for each.

Buy now, pay later.


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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.