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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Category: Resistant Starch

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

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 successful reports of potato dieters losing weight on a high-carb tuber diet? Second, is Leangains optimal for mass gain? Third, how do I use extra virgin olive oil, butter, and ghee? Fourth, could exogenous ketones help a man with dementia, MS, and seizures? Fifth, how should a woman with stalled weight loss integrate fasting?

Let’s go:

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8 Misconceptions About Fiber

The tricky thing about fiber is that it’s not a monolith. There are dozens of varieties. Some of them perform similar functions in the body, but others have extremely unique effects. Some rend your colonic lining to stimulate lubrication. Some turn into gelatinous slurries. But we can’t talk about fiber without understanding that the word describes a variety of compounds. As such, anyone making declarative statements about “fiber” without differentiating between the different types and their effects isn’t being accurate (except for me in that exact sentence).

This leads to a lot of confusion. People make blanket statements that might be true for some types of fibers and incorrect for others. 

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Dear Mark: Hiking and Body Composition, Hiding Liver, Unconventional Testosterone Boosters, Cooked/Cooled/Reheated Potatoes, and Sirtuins

For today’s edition of Dear Mark, I’m answering five questions from readers. First up, why isn’t hiking giving one reader the shifts in body comp they expected? Two, is there actually a way to mask the flavor of liver? Then I discuss a few unconventional testosterone boosters, followed by a brief treatment of the cooked, then cooled, then reheated potato. And finally, are there any dietary activators of sirtuin proteins?

Let’s go:

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Dear Mark: Coffee Alternatives for Liver Health, Vitamin C, Gelatin vs Collagen, NAC, My Favorite Way to Cook Greens, and Potato Starch Breading

For today’s edition of Dear Mark, I’m answering several questions. First, if a person can’t have coffee but wants the benefits it provides to liver health, what else can they try? Next, what role does vitamin C play in glutathione production? Then, I explore how gelatin and collagen differ from each other, followed by a quick description of NAC. After that, I give my current favorite method for cooking greens, and end with a discussion of how breading meat with potato starch changes the meal.

Let’s go:

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14 Weird Plant Bits and Where to Find Them: Foraging Ethnic Markets

Five years ago, I wrote about all the odd animal bits one can find at ethnic markets. I procured and photographed the blood, the guts, the tendon, the tripe, the tails and heads and feet and all the other weird things you can and should eat—meaty bits you won’t find in the local Whole Foods.

Today, I’m going to talk about the weird plant bits available in ethnic markets—spices, greens, roots, noodles, and fermented things.

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The Benefits of Caloric Efficiency (and 10 Ways to Achieve It)

We really like to eat. We choose restaurants based on portion size. We work out just to increase our capacity for guilt-free gluttony. And even when we don’t actually like it, we still want it because the food industry employs experts in brain hedonic processing to engineer food products your brain literally cannot stop craving. As Louis CK put it, we don’t stop eating when we’re full, we stop eating when we hate ourselves.

I’m not immune. In college, they called me Arnold, after the pig from Green Acres, because I could (and did) out-eat anyone. Linebackers 1.5x my size were no match. I love food, but I’m not interested in cramming as much food as I can get away with. Not anymore.

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