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Meet Mark Sisson

Meet Mark Sisson

Mark Sisson is founder of Primal Nutrition, LLC, and Primal Kitchen, LLC, and the extensive product offerings of these enterprises can be found on this website.

Welcome! Mark is the author of numerous books, including The Primal Blueprint, which was credited with turbocharging the growth of the primal/paleo movement back in 2009. In 2017, he officially became a New York Times bestselling author with The Keto Reset Diet, which reached the #1 overall bestseller among all books on for two days. Mark has written several other books, including popular Primal-themed cookbooks and lifestyle books. He is the publisher of, the #1-ranked blog for over a decade in its health and fitness category.

Read on for more about Mark's background from Mark himself:

I am the oldest of four children, born and raised in Maine. I was always interested in human health and athletic performance, probably because my father had been a top track and field athlete and inspired me to test myself at an early age (I even broke my leg at age two jumping off a rock). By age 12, I was holding one-boy track meets in my backyard, running laps around the block and pole-vaulting with a bamboo pole into a dirt pit. My mother was always interested in achieving good health through nutrition, so I also began devouring books on health and nutrition.

I excelled at cross-country and distance track events in high school and at Williams College, where I was a pre-med candidate and received my degree in biology. In fact, the running was going so well after college that I decided to forgo medical school for a few years (it’s at over 30 years now) and concentrate on a running career. I trained seriously as a marathoner for another five years, racking up well over 100 miles each week in training. The effort culminated in a top 5 finish in the 1980 US National Marathon Championships and a qualifying spot for the 1980 US Olympic Trials.

Unfortunately, by then the inhuman amount of training and weekly racing was taking its toll and I found myself constantly sick or injured. (Note to self: too much exercise is not a good thing). In fact, in my last year of competition, as a world class, extremely “fit” athlete, I experienced eight upper respiratory infections! Clearly I was ruining my immune system and my joints doing too much exercise. That’s when I started exploring nutrition and supplementation as a way to enhance my performance and to support my damaged body and bolster my immune system.

The running injuries—osteoarthritis and tendonitis—precluded ever racing at a high level again, but that was just about the time that the new sport of triathlon was starting to emerge, and I was immediately hooked. While I couldn’t run much anymore, I could certainly cycle and swim to my heart’s content…and I did. I spent a few more years racing triathlons, culminating with a 4th place finish in the Hawaii Ironman World Championships,

I finally retired from competition in 1988 and decided I would do whatever I could to help others avoid making the kinds of health mistakes that I had made. I figured I could use my pre-medical background, my degree in biology and an intense desire to unlock the health secrets that I knew were out there—answers to questions about health, wellness, anti-aging, safe weight-loss, nutrition and supplementation—to find the natural ways of achieving good health.

I wrote several books, including Maximum Results, The Fat Control System, The Anti-aging Report and The Lean Lifestyle Program (over 400,000 copies distributed). I edited the Optimum Health national health newsletter (circ. 90,000) from 1994 through 1996.

Through my research and writing endeavors, I saw the need for specific natural supplements to address the concerns of aging baby-boomers who needed nutritional “tools” to help them achieve better health. I was appalled at the amount of medications people were taking and the speed with which people were having surgery to address lifestyle problems. So I drew on my extensive research and science background to design natural state-of-the-art health-enhancing nutritional supplements and educational diet and exercise systems.

During this time, I also served for 15 years as the volunteer elected anti-doping and drug-testing chairman of the International Triathlon Union and as its liaison to the International Olympic Committee.

At the end of 2006, I decided to jump into the blogosphere to help foster compelling, critical and enjoyable health discussions. Founding is one of the best things I've ever done and has been incredibly rewarding.

Out of the blog came The Primal Blueprint (2009), The Primal Blueprint Cookbook (2010) and the inaugural PrimalCon (2010), a three-day retreat bringing together members of the Primal community for a weekend of amazing food, great company, educational breakout sessions and a little play, rest and relaxation. We held 9 PrimalCon events across North America in the ensuing years, strengthening the sense of community that had developed from lively engagement on the blog.

My life has been one built around health and fitness, and I don't plan for that to ever end. I've made it my personal goal to help 10 million people achieve their ultimate genetic potential. To this end my team and I have many exciting new ventures planned for the future. I hope you'll check back often to learn how my story, the story of the Primal Blueprint, and, most importantly, the stories of all the Primal Blueprinters out there, unfold.

Grok on!

- Mark Sisson

What We Do

The Primal Blueprint helps you discover how amazingly simple and fun lifelong wellness can be. We provide a complete diet, exercise and lifestyle philosophy, along with various products, services and community support, to help you enjoy effortless weight loss, vibrant health and boundless energy. The Primal Blueprint is based on lifestyle principles that have governed human health, evolution and peak performance for over two million years, and is supported by respected research in the fields of epigenetics and evolutionary biology. The Primal Blueprint principles challenge many elements of conventional wisdom that, while well intentioned, are deeply flawed and are making people fat, sick and burnt out.

Primal Blueprint Founder Mark Sisson has spent the last several decades on a quest for health, wellness and truth in a world littered with flawed conventional wisdom. In 2009, he published his bestseller, The Primal Blueprint, launching the organization into a full-service diet, exercise and health education operation.

The Primal Blueprint changes lives; it gives you hope if you’ve been discouraged, and it makes health—even weight loss—effortless and enjoyable. If you’re ready to make a change in your life, please join us! We’d love to be your partner, your coach and your biggest supporter on your journey to optimal wellness.