Free Shipping & Returns
100% Money-Back Guarantee
Free Shipping & 100% Money-Back Guarantee

Thank you for reading Muscle for Life.

I hope you've found it insightful, inspiring, and practical, and I hope it helps you build that lean, muscular, and strong body you really desire.

I want to make sure that you get as much value from this book as possible, so I’ve put together a number of additional free resources to help you, including:

  • A savable, shareable, printable reference guide with all of this book’s key takeaways, checklists, and action items.
  • Links to form demonstration videos for all Muscle for Life exercises.
  • An entire year’s worth of Muscle for Life workouts neatly laid out and provided in several formats, including PDF, Excel, and Google Sheets.
  • Twenty Muscle for Life meal plans that make losing fat and gaining lean muscle as simple as possible.
  • My favorite tools for getting and staying motivated and on track inside and outside of the gym.
  • My all-time favorite fitness books.
  • And a surprise gift. 🔮😉

To get instant access to everything (plus an additional surprise gift), enter your first name and email address below.


Praise for Muscle for Life

"Mike Matthews is one of the most informed, intelligent and experienced fitness gurus on the face of the planet, bar none. His books are full of practical wisdom advised by his years of time in the trenches, his vigorous research and his hours upon hours of time interviewing experts about what works and what doesn't when it comes to optimizing not only your fat loss and muscle gain, but also your ability to stay in the fitness game for life.

“I read each and every one of Mike’s books, and you can't go wrong with Muscle for Life.”

Ben Greenfield

"Muscle for Life is a breath of fresh air. Instead of passing fads and overhyped biohacks, Matthews gives us what we need: the time-tested principles and practices that have been shown to work."

Alex Hutchinson

“Read this book, implement its teachings, and you’ll never look back. With your health and fitness fully under your control, your body, and then likely your life, will never be the same.”

Dr. Spencer Nadolsky

"You don't just read Muscle for Life—you do it, and you get the body you’ve always wanted. It's never too late to get into the best shape of your life, so this is a must-read for anyone at any age who wants to lose fat, build muscle, and get strong . . . for life."

Mark Divine

Muscle for Life is meticulously researched, clearly written, and utterly practical. Matthews has created something special here.”

Strauss Zelnick

Our "It's On Us" 100% Money-Back Guarantee

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.

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. 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.

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

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.


Split your entire online purchase into 4 interest-free payments, over 6 weeks with no impact to your credit.

payment break down 25% today, 25% 2 weeks, 25% 4 weeks, 25% 6 weeks

25%
today

25%
2 weeks

25%
4 weeks

25%
6 weeks

Here's how to Sezzle


Step 1 - shop the store

Shop

Shop and add items to your cart as normal!

Step 2 - checkout at the store

Checkout

Choose Sezzle at Checkout! You’ll be redirected to Sezzle to Sign Up or Log In to complete your order.

Step 3 - Select Sezzle and Sezzleit

Sezzle it

Your order will be shipped out right away* and your payments will be split up over 6 weeks.

*shipping times subject to merchant shipping policy

Download the App


Shop directory. Reschedule payments. Plus more!

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.

OUT OF STOCK

Security Check

Please click the checkbox below. We apologize for the inconvenience.

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.