Meet Mark

Let me introduce myself. My name is Mark Sisson. I’m 63 years young. I live and work in Malibu, California. In a past life I was a professional marathoner and triathlete. Now my life goal is to help 100 million people get healthy. I started this blog in 2006 to empower people to take full responsibility for their own health and enjoyment of life by investigating, discussing, and critically rethinking everything we’ve assumed to be true about health and wellness...

Tell Me More
Stay Connected


Welcome to Mark’s Daily Apple, the blog that built awareness and authority for Mark Sisson and the Paleo/Primal lifestyle. Considered by many to be the Google of ancestral health, Mark’s Daily Apple covers all topics related to thriving in the modern world with Primal strategies. More recently, the blog has explored Mark’s experimentation with combining a ketogenic diet as a way to obtain metabolic flexibility while also living Primally.

Mark founded this site in 2006 to fulfill his personal mission: to empower people to take full responsibility of their own health and enjoyment of life by investigating, discussing, and critically rethinking everything we’ve assumed to be true about health and wellness.

If you’d like to learn more about Mark, this site, the Primal Blueprint health philosophy, or the ketogenic diet, take a look at the following pages:


Who Is Mark Sisson?

Primal Blueprint 101

The MDA Ultimate Guide to the Keto Diet

More About Mark Sisson

Mark Sisson is a New York Times bestselling author, owner, and founder of Primal Kitchen and Primal Blueprint, and former executive director of USA Triathlon. Mark pioneered his own version of the Paleo diet called the Primal Blueprint, which gives everyday people a plan for not only dumping the grains, processed foods, industrial seed oils, sugar and other foods that can compromise health, but also for moving, sleeping, and living optimally.

Mark launched Primal Kitchen in 2015 in an effort to make it easier for people to buy Primal, Paleo, Keto, and Whole30 approved convenience foods such as salad dressings, marinades, collagen, protein bars, condiments, and avocado oil full of healthful, natural fats, superfoods, antioxidant-rich, high-ORAC-scoring herbs and spices—with no offensive, synthetic vegetable and seed oils and no artificial colors, flavors or fillers.


To get started, pick the category most relevant to you today. Choose from Diet & Nutrition, Fitness, Weight Loss, Primal Lifestyle, or Personal Improvement. Then see which blog post jumps out at you first.

Prefer to listen instead of read?


Click the link for our podcast and choose from hundreds of shows on unconventional topics.



Before you go, check out our recipes page for some delicious, easy-to-make primal-approved breakfast, lunch, dinner, and snack delights.

What started as a grassroots Primal/Paleo health blog has grown into a progressive, revolutionary (dare we say it?) empire made up of health and wellness champions determined to live their best lives ever, spreading health-conscious advocacy wherever their bare feet may land. We’re deeply thankful for how our readers make Mark’s Daily Apple such a hit. And we hope you’ll join our movement if you haven’t already!



Mark’s Daily Apple is unique in that it’s not merely a hub of health and fitness information—although we do have all the education you could desire built into this site—it’s also an amazing dynamic virtual community, and that’s all thanks to our awesome readers. Just browse the Mark’s Daily Apple Forum, the dozens (sometimes hundreds) of comments that follow each daily post, the Mark’s Daily Apple Facebook Group, or the mind-blowing Success Stories, and you’ll see that the most gratifying aspect of our journey together is being part of the authentic, tight-knit community of real people that gather at MDA. We hope you’ll join us!

While this site is dedicated to ancestral health principles, there’s something for everyone, regardless of diet and fitness philosophy, because the Primal Blueprint and Mark’s take on the ketogenic diet is all about eating real, unadulterated foods that enhance optimal gene expression, engaging in functional and playful fitness that builds lean muscle and maintains ideal body composition, and practicing supportive lifestyle habits that foster stress-free, joyful living.

Much of the Mark’s Daily Apple audience has been reading the blog for three years or more. These readers have come to know and trust Mark’s advice about all things Primal, Paleo, Keto, nutrition, fitness, and weight loss, and appreciate not only the hours of time spent citing and analyzing primary sources and research published in peer-reviewed academic and medical journals in the articles, but also the unique way Mark educates in a logical, thorough, and sensible style.

Here’s what some of our longtime readers said about Mark’s Daily Apple in a recent survey:

“I go to MDA as my first port-of-call for info now, because I know I will find a balanced view. I trust Mark to wade through all of the info for me, weigh up the contradictory evidence, and give me the low down. As a long-time reader, I have read (and reread) many of the posts about the fundamentals of a Primal lifestyle. These days I mostly like articles addressing the latest nutrition study all over the news.”

“I appreciate Mark’s perspective and point of view. Unlike a lot of other keto and paleo vocal points, he is not an extremist and approaches topics with a no nonsense point of view.”

“I like reading about Mark’s varied experience with having family members who are different, diet-wise, from him, and his experience of female weight issues via his wife. The recent keto stuff has been very cool—keto can be absolutely life-changing for massively overweight women with hormonal issues.”

“I’m drawn to Mark’s authenticity, all the things I’ve learned here, the support/inspiration I feel from reading here even though I am not Paleo, the amount of research Mark supports his writing with.”

“Mark is freaking smart, and simplifies the best of the best. He saves me time seeking out info and brings me the latest trending topics.”

“I appreciate Mark’s take on EVERYTHING. I completely trust Mark’s judgment, not trendy but solid. It always helps me to get his take on things before rendering my own judgment on the subject.”

“Last year, in a job that was a horrible fit for me, I also let the exercise and movement slide. I have quit the job, starting moving again, already see results. Mark’s perspective and writings have helped devise a plan to ensure that I don’t do this again.”

“MDA has been my favorite blog to read almost since it started. It’s not just the content or the good advice—it’s a seriously great example of what a blog can be. I send people to look at it when I want to give them an example of good blogging. Here’s why:
1) It’s on topic, but it has plenty of scope.
2) Near daily updates.
3) Mark isn’t afraid to be wrong. He can change his mind or shift his position. That intellectual integrity made me trust the things I read on the blog a lot more.
4) The tone of the blog is optimistic.
5) The lifestyle MDA promotes is fundamentally humane.
6) And most importantly… the blog has always promoted open-mindedness and curiosity, even when the community was trending towards (ahem) a certain rigidity. I like that generally, but I think it’s also why MDA has stayed fresh.”

Join Over 300,000 Subscribers!

Signup and get:

Primal Blueprint Fitness plus 7 other eBooks
7-Day Course on Primal Fundamentals
Special Offers and More!