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...

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A Definitive Guide To Tea

September 25 2018 - Today's guest post and recipe are offered up by Simon Cheng, founder & CEO of Pique - Tea Crystals. I connected with Simon and his team about a year ago and have been a fan of their tea products s...

The Definitive Guide to Metabolic Flexibility

September 12 2018 - Metabolic flexibility is the capacity to match fuel oxidation to fuel availability—or switch between burning carbs and burning fat. Someone with great metabolic flexibility can burn carbs when they ...

The (Maybe Not So) Definitive Guide to Cold Therapy

May 02 2018 - Cold is really catching these days. Aubrey Marcus, whom I recently filmed a nice podcast with, was asked about his winning daily behaviors on another show. The very first thing he mentioned was "expos...

The Definitive Guide to Chocolate

February 14 2018 - Ah, chocolate. What a life. According to the Aztecs, the great feathered serpent god of wisdom and creation known as Quetzalcoatl introduced the cocoa bean to mankind. It’s likelier that it orig...

The Definitive Guide to Bone Broth Benefits

August 02 2017 - I've been writing about bone broth for a long time. I've been drinking it even longer. I'm not sure you can get anything much more primal than a heap of bones cooked for hours into rich, gelatinous gl...

The Definitive Guide to Children’s Nutrition

July 19 2017 - Feeding infants is quite simple. There's a ton riding on you getting it right, of course—a developing immune system, the fact that the kid's growing an inch a week, a permeable blood-brain barrier,...

The Definitive Guide to Keto

June 07 2017 - I use my Los Angeles surroundings as a barometer for changes in the mainstream approach to health, and it holds up quite well. Silicon Valley can claim to be the cradle of technology, but L.A. is defi...

The Definitive Guide to Wine

October 11 2016 - For years, wine was my stress reliever at the end of a long day. Having given up grains and grain-based beverages over a decade ago, I swapped beer for wine. It was my frequent dinner companion. Grill...

The Definitive Guide to Coffee

July 27 2016 - Coffee is serious business. We Americans drink about 400 million cups of it per day and spend several billion dollars on it each year. It’s the most popular drug on earth, and certainly the most soc...

The Definitive Guide to Using Your Recent Ancestry to Determine Your Optimal Diet

January 06 2016 - Go back 160,000 years and we all share a common ancestor: The emergence of the first Homo sapiens in East Africa. Since then, humans have spread across every environment imaginable and adapted to tho...

A Definitive Guide To Tea

September 25 2018 - Today's guest post and recipe are offered up by Simon Cheng, founder & CEO of Pique - Tea Crystals. I connected with Simon and his team about a year ago and have been a fan of their tea products s...

The Definitive Guide to Metabolic Flexibility

September 12 2018 - Metabolic flexibility is the capacity to match fuel oxidation to fuel availability—or switch between burning carbs and burning fat. Someone with great metabolic flexibility can burn carbs when they ...

The Definitive Guide to Chocolate

February 14 2018 - Ah, chocolate. What a life. According to the Aztecs, the great feathered serpent god of wisdom and creation known as Quetzalcoatl introduced the cocoa bean to mankind. It’s likelier that it orig...

The Definitive Guide to Bone Broth Benefits

August 02 2017 - I've been writing about bone broth for a long time. I've been drinking it even longer. I'm not sure you can get anything much more primal than a heap of bones cooked for hours into rich, gelatinous gl...

The Definitive Guide to Children’s Nutrition

July 19 2017 - Feeding infants is quite simple. There's a ton riding on you getting it right, of course—a developing immune system, the fact that the kid's growing an inch a week, a permeable blood-brain barrier,...

The Definitive Guide to Keto

June 07 2017 - I use my Los Angeles surroundings as a barometer for changes in the mainstream approach to health, and it holds up quite well. Silicon Valley can claim to be the cradle of technology, but L.A. is defi...

The Definitive Guide to Wine

October 11 2016 - For years, wine was my stress reliever at the end of a long day. Having given up grains and grain-based beverages over a decade ago, I swapped beer for wine. It was my frequent dinner companion. Grill...

The Definitive Guide to Coffee

July 27 2016 - Coffee is serious business. We Americans drink about 400 million cups of it per day and spend several billion dollars on it each year. It’s the most popular drug on earth, and certainly the most soc...

The Definitive Guide to Using Your Recent Ancestry to Determine Your Optimal Diet

January 06 2016 - Go back 160,000 years and we all share a common ancestor: The emergence of the first Homo sapiens in East Africa. Since then, humans have spread across every environment imaginable and adapted to tho...

The Definitive Guide to Seeds

March 25 2015 - Last week, I gave you the definitive guide to nuts, focusing on the ten most widely available types. Today I give the same treatment to edible seeds. If you've ever wondered whether chia seeds are goo...

The Definitive Guide to Walking

June 08 2011 - At first glance, this title probably threw you off. I mean, a guide to walking? Are we moderns really that dysfunctional that we can't even walk correctly? C'mon, Sisson - you must be out of ideas. ...

The Definitive Guide to Low Level Aerobic Activity

July 02 2009 - Maybe you’ve found yourself feeling self-conscious on evening walks while five people pass you (perhaps twice) in their best running forms. Perhaps you spent the day at the lake canoeing or hiking a...

The Definitive Guide to Play

June 24 2009 - I’ve mentioned the Primal concept of play quite a bit recently, and I figured I should clarify what I mean with a comprehensive post. But Mark! A Definitive Guide to something that is essentially...

The A-to-Z Guide to Leading a Primal Lifestyle

October 07 2015 - Print this out. Bookmark it. Send it to friends who don’t quite get the Primal thing. Consider this a valuable resource for all-things Primal. It’s a nice, alphabetical encapsulation of what it me...

A Guide to Maintaining a Healthy Sex Drive

May 24 2011 - Everyone ready for the holiday weekend yet? It’s a good time, I think, to cover a relaxing, if not inspiring, topic I’ve been meaning to get to. In all seriousness, I get a couple emails every wee...

Dear Mark: Potato Diet, Lean Gains, EVOO/Butter/Ghee, Exogenous Ketones, and Early IFing

June 18 2018 - For today's edition of Dear Mark, I'm answering several questions drawn from the comment board of last week's post on fasting vs carb restriction. First, how do I square my recommendations with the su...

11 (Non-Dietary) Actions That Enhance Insulin Sensitivity

May 17 2018 - Insulin does a lot of important things for us. It pulls glucose from the blood and fritters it away into our cells to be burned for energy or stored as glycogen. It prevents hyperglycemic toxicity to ...

CrossFit Training: How Going Primal Will Enhance Recovery

August 10 2017 - Exercise is a major stressor. But it's a major acute stressor, rather than a chronic one. It hits us, then it's over, and we recover. When the next session rolls around, we're better/faster/stronger/...

Dear Mark: Keto Reset Eating Plan, Better Weight Scales, PB Fitness Carb Requirements, and the Best Fish Sauce

July 31 2017 - For today's edition of Dear Mark, I'm answering/addressing four questions/comments. First, will my new Keto Reset book provide detailed meal plans or vague recommendations? Second, is there a better w...

CrossFit’s Criticism: How Do I Eat Enough Calories on Primal?

July 13 2017 - One of the reasons CrossFit tends to produce excellent physiques in both men and women is that it forces you to do everything. You're lifting heavy, sprinting, going long and slow sometimes, going sho...

The Definitive Guide to Overcoming Procrastination

March 10 2015 - Several years ago, I briefly discussed a few methods for overcoming procrastination, but they didn't take. The sea change I expected never came. People still procrastinated as much as they ever did, d...

The Definitive Guide to Stress, Cortisol, and the Adrenals: When ‘Fight or Flight’ Meets the Modern World

July 05 2007 - One of my goals with this weekly column is to make significant human health issues easy to understand and discuss. I was pleased that last week's piece, the Definitive Guide to Insulin, Blood Sugar &a...

The A-to-Z Guide to Leading a Primal Lifestyle

October 07 2015 - Print this out. Bookmark it. Send it to friends who don’t quite get the Primal thing. Consider this a valuable resource for all-things Primal. It’s a nice, alphabetical encapsulation of what it me...

Primal Starter: Fielding Others’ Opinions

March 02 2018 - It’s a role that’s probably more often thrust upon us—that of Primal advocate. There we are minding our own healthy business, and somebody’s question or comment fixes the spotlight on us. Why ...

Primal Challenge Point: Embrace the Pleasure Principle

January 22 2018 - A lot of people come to the Primal Blueprint having felt lousy for many years. It might be because of excess weight, medical issues, or general lack of energy. The point is, many of these folks hav...

Is Keto for Everyone? Cautions, Caveats, and Contraindications

June 21 2017 - In a few months, I'll be releasing a book extolling the virtues of a ketogenic diet. I'm currently several months into a ketogenic experiment, which is going well. I just wrote a Definitive Guide exp...

Dear Mark: Keto Follow-Up

June 12 2017 - For today's edition of Dear Mark, I'm answering some questions from the comment board of last week's Definitive Guide to Keto. You folks came up with some great ones. Is counting carbs in non-starchy ...

Summer Reset: 30 Days, 30 Actions (Plus a 21-Day Staff Challenge AND Giveaway!)

May 31 2017 - At the onset of our annual 21-Day Challenge this past January, I offered up a post that proposed thinking small—"41 Primal Action Items and Individual Experiments for Success in 2017." The idea here...

How to Encode Better Choices

December 13 2016 - Quick check-in: what’s the hardest habit you’ve had to break in going Primal? Something you’re currently looking to change? What have been the challenges? While I don’t consider Primal livi...

10 Primal-Friendly Tips from Wise People Throughout History

August 31 2016 - I'm not the first one to talk about the importance of sleep, the primacy of gut health, the impact food has on your well-being, how we divorce ourselves from nature at our peril, and why everyone nee...

The (Maybe Not So) Definitive Guide to Cold Therapy

May 02 2018 - Cold is really catching these days. Aubrey Marcus, whom I recently filmed a nice podcast with, was asked about his winning daily behaviors on another show. The very first thing he mentioned was "expos...

The Definitive Guide to Children’s Nutrition

July 19 2017 - Feeding infants is quite simple. There's a ton riding on you getting it right, of course—a developing immune system, the fact that the kid's growing an inch a week, a permeable blood-brain barrier,...

The Definitive Guide to Napping

June 16 2015 - In most Western nations, napping is a sign of weakness. Those who do it — or, even worse, need it — are slothful wastes of resources who can’t hack it in the “real world.” They lack grit, de...

The Definitive Guide to Walking

June 08 2011 - At first glance, this title probably threw you off. I mean, a guide to walking? Are we moderns really that dysfunctional that we can't even walk correctly? C'mon, Sisson - you must be out of ideas. ...

The Definitive Guide to Sleep

March 24 2010 - Sleep Awareness Week (as sponsored by the National Sleep Foundation) technically ended March 13th, but somehow I’m guessing there are just as many sleep deprived folks milling about this week as the...

The Definitive Guide to Play

June 24 2009 - I’ve mentioned the Primal concept of play quite a bit recently, and I figured I should clarify what I mean with a comprehensive post. But Mark! A Definitive Guide to something that is essentially...

The Definitive Guide to Feeding Primal Babies

May 26 2009 - It’s commonly portrayed as the realm of infant formula, rice cereal, applesauce, teething biscuits, Zwieback toast and Cheerios. And in the following months a large pantry selection of strained this...

Definitive Guide: The Primal Blueprint

June 04 2008 - Build the Healthiest Possible Body with the Primal Blueprint I get emails every day from people who are changing their lives for the better by following the guidelines I outline on this site. But m...

The Definitive Guide to Stress, Cortisol, and the Adrenals: When ‘Fight or Flight’ Meets the Modern World

July 05 2007 - One of my goals with this weekly column is to make significant human health issues easy to understand and discuss. I was pleased that last week's piece, the Definitive Guide to Insulin, Blood Sugar &a...

The A-to-Z Guide to Leading a Primal Lifestyle

October 07 2015 - Print this out. Bookmark it. Send it to friends who don’t quite get the Primal thing. Consider this a valuable resource for all-things Primal. It’s a nice, alphabetical encapsulation of what it me...

A Beginner’s Guide: How to Culture Vegetables

March 01 2014 - Culturing raw vegetables can be a little intimidating. The process really is quite simple, but it seems like a lot to keep track of. What type of vegetables do you use? What do you culture with - salt...

Meat Lover’s Guide to Marinating Meat (plus 10 Primal Marinades)

October 13 2009 - A Primal commitment to regular consumption of pastured, organic (expensive/hard-to-find) meats often means buying in bulk when a good price presents itself. Grass-fed steak runs rather pricey, so the ...

Primal N’Oatmeal

August 20 2016 - On mornings when a bowl of oatmeal is what your body craves, this hearty and comforting Primal breakfast cereal is exactly what you need. Coconut flakes, almonds, pecans, and the milk of your choice a...

Chicken Parmesan

June 11 2016 - This Italian dish borrows an Asian trick for frying chicken: Use potato starch instead of flour and/or breadcrumbs for a crispy and gluten-free coating. Potato starch has been mentioned before as a p...

Fish Tartare: A Recipe from Good Fat, Bad Fat

May 21 2016 - In honor of Primal Blueprint Publishing’s newest release, Good Fat, Bad Fat by Romy Dollé, we thought we’d share another recipe from this healthy fat resource. If you missed the Rösti with Fried...

Dark Chocolate Brazil Nut and Coconut Bars

April 30 2016 - Looking for a new homemade dessert to satisfy your sweet tooth? One that’s fancy enough to serve at a dinner party, but can also be thrown into a backpack on your next hike? These dark chocolate ...

Polish Hunter’s Stew (Bigos)

April 02 2016 - There are a lot of different recipes out there for Polish Hunter’s Stew (also called Bigos). But in the end, it’s always about two things: meat and cabbage. Hunter’s Stew is a hearty dish made f...

West African Nut Stew

March 19 2016 - West African nut stew is usually West African peanut stew. Peanut butter is whisked into the broth to give the stew a rich texture and slightly sweet, nutty flavor. Although a little peanut butter isn...

Marinated Olives and Nuts

March 05 2016 - Olives and nuts marinated in extra virgin olive oil with rosemary, lemon zest, fennel seeds and hot pepper, is a savory, salty snack swirling with healthy fat, antioxidants, fiber, iron and copper. Pl...

Primal Furikake

February 06 2016 - Furikake is a Japanese seasoning made from dried fish (bonito), sesame seeds, dried seaweed, salt, sugar, and often msg. A Primal version is easy to make–simply drop the sugar and msg–and you have...

It Felt Like a Rebirth Into Living

September 07 2018 - It's Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark's Da...

Crohn’s Conquered!

June 12 2015 -

Complete Turnaround After Only Two Months

May 16 2014 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

Food Is My Medicine

May 09 2014 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

Performance Up! Inflammation Down!: Professional Baseball Pitcher Goes Primal and Sees Immediate Results

February 21 2014 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

Everything Has Changed 180 Degrees: A Daughter’s Telling of Her Father’s Primal Journey

November 08 2013 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

A Simple Flip of a Switch: Body Fat Lost, Athletic Performance Improved, and Inspiration Served

October 25 2013 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

I Feel Healthier, Stronger, and More Energetic

May 31 2013 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

The Definitive Guide to Metabolic Flexibility

September 12 2018 - Metabolic flexibility is the capacity to match fuel oxidation to fuel availability—or switch between burning carbs and burning fat. Someone with great metabolic flexibility can burn carbs when they ...

The Definitive Guide to Using Your Recent Ancestry to Determine Your Optimal Diet

January 06 2016 - Go back 160,000 years and we all share a common ancestor: The emergence of the first Homo sapiens in East Africa. Since then, humans have spread across every environment imaginable and adapted to tho...

The Primal Blueprint Definitive Guide to Troubleshooting Weight Loss

October 06 2015 - I get a lot of emails about weight loss plateaus. I've covered them in Dear Mark after Dear Mark. I've personally written countless emails to readers about beating a stall. Friends, colleagues, and pe...

The Not So Definitive Guide to Diet Soda

January 26 2011 - Before I begin, I want to make something clear: this is not your standard definitive guide to whatever. I'd like to be able to issue a proclamation regarding diet soda that stands the test of time imm...

The Definitive Guide to Insulin, Blood Sugar & Type 2 Diabetes (and you’ll understand it)

June 27 2007 - BITE ME, ADA We all know by now that type 2 diabetes is an epidemic. We’re seeing words like crisis and runaway all over the news and in the journals. Heart disease rates have been cut in half si...

Choose Your Booze: A Guide to Healthy Drinking

October 07 2009 - It’s the question every Primal adherent faces: how does alcohol fit into a low carb lifestyle? Maybe you’re out with friends, bravely resisting the assorted chips and fried concoctions in the cent...

Dear Mark: Potato Diet, Lean Gains, EVOO/Butter/Ghee, Exogenous Ketones, and Early IFing

June 18 2018 - For today's edition of Dear Mark, I'm answering several questions drawn from the comment board of last week's post on fasting vs carb restriction. First, how do I square my recommendations with the su...

The Genetics of Obesity: Are You Destined to Be Fat?

August 30 2016 - The entire premise of the Primal Blueprint is enabling you to be the architect of your health and happiness. If we can identify the environmental triggers and selective pressures under which the human...

Dear Mark: Bikram Yoga; Stored Toxins Impairing Fat Loss

June 13 2016 - For today's edition of Dear Mark, I'm answer two questions from readers. First, does Bikram yoga qualify as sprinting or high intensity training? It's certainly intense, and it'll make you sweat bulle...

Dear Mark: Higher BMI and Mortality Risk, Calories When Meal-Skipping, HIIT After Fasting

May 16 2016 - For today's edition of Dear Mark, I'm answering a couple questions from you guys. First, there's a new paper out claiming that the ideal BMI for overall mortality is an overweight one—27, to be exac...

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