Mark Sisson

About the Author

Mark Sisson is the founder of Mark’s Daily Apple, godfather to the Primal food and lifestyle movement, and the New York Times bestselling author of The Keto Reset Diet. His latest book is Keto for Life, where he discusses how he combines the keto diet with a Primal lifestyle for optimal health and longevity. Mark is the author of numerous other books as well, including The Primal Blueprint, which was credited with turbocharging the growth of the primal/paleo movement back in 2009. After spending three decades researching and educating folks on why food is the key component to achieving and maintaining optimal wellness, Mark launched Primal Kitchen, a real-food company that creates Primal/paleo, keto, and Whole30-friendly kitchen staples.

woman hiking uphill

8 Aerobic Workouts That Aren’t Running, Cycling, or Swimming

Aerobic workouts are gentle training sessions where the predominate form of energy being utilized is fat—mostly body fat. They're easy, some would say "too easy," but that's the entire point. Aerobic workouts slowly build mitochondrial density and teach your body to burn fat. They're essential, and they aren't what I talk about when I talk about "chronic cardio," which is the kind of unsustainable moderate-to-high…

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Mark smiles mid-stride in front of a grove of trees.

New and Noteworthy: What I Read This Week—Edition 126

Research of the Week Seaweed-based edible food packaging. Lower omega-3 index, higher risk of degenerative rotator cuff tears. Researchers can now use cave sediments to derive ancient human DNA. Subtraction is hard. If you've had Covid and want the vaccine, you might only need one dose.

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Full length portrait of fitness young man training with kettlebell in the park. Fit caucasian model doing physical workout in the park.

Rest Pause Training: How to do Myo Reps

The Primal Blueprint is all about maximizing the efficiency of training to reduce the time spent working and increase the time spent playing. If I can figure out the minimum effective dose and get 80% of the benefits in 20% of the time, I'm all for that. It leaves me extra time to spend with my loved ones, play outdoors, go for hikes, or buckle…

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Cropped shot of a young man drinking a glass of water at home

Do You Know How to Properly Hydrate? It’s Not as Straightforward as You Might Think

Hydration seems like it should be so easy: drink some water, go about your day, the end. Back in this blog’s early days, and when I first published The Primal Blueprint, my hydration advice was simple: drink when you’re thirsty. Over the years, however, my thinking on the hydration issue has become more nuanced. When I updated and expanded the most recent edition of The…

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Are Salt and Sodium Bad for You?

Other than saturated fat, I can't think of a nutrient that's been so universally maligned and demonized as salt. All the experts hate it and recommend that we get as little of it as possible. They even all seem to have their own little anti-salt slogans. The American Diabetes Association recommends between 2300 and 1500 mg of sodium per day ("Be Sodium Savvy"). The American…

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Mark smiles mid-stride in front of a grove of trees.

New and Noteworthy: What I Read This Week — Edition 125

Research of the Week The earliest known modern humans in Europe were products of a recent coupling between humans and Neanderthals. How your face and body morphology influence how threatening you appear to others. Thru-hiking—at least as commonly practiced—can impair vascular health. Personality and metabolism. In rodents, early life sugar consumption impairs later life cognition, perhaps via changes to gut bacteria.

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