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: Carbs

Is Keto for Everyone?—Cautions, Caveats, and Contraindications

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 explaining why you should consider going keto. I’m on record as stating that everyone should dip into ketosis from time to time. You’d think I’d recommend that everyone go keto. Right?

There are caveats. There are contraindications. There are very good reasons for a person not to go keto, or at least to take a few extra precautions. Today, I’m going to tell you when you should exercise particular care when considering a ketogenic diet.

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7 Reasons to Love Wheat

Wheat gets a bad rap in the alternative health sphere, receiving blame from all sides. Today, I’m here to provide the other side. Today, I’m going to give you seven solid reasons to love wheat, ranging from its effects on the environment, its role in the foundation of the American republic, its effect on gut bacteria and your health, its ability to stamp out hatred, its protective role in the lives of Bronze Age Chinese women, and its status as an enduring symbol of human rights and prosperity.

Let’s get right to it.

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Dear Mark: Erythritol and Weight Gain, Chicken Liver and Arsenic, and Tips for Laptops in the Sun

For today’s edition of Dear Mark, I’m answering three questions from readers. First, is erythritol, one of the more common sugar alcohols, linked to weight gain? According to a new study, it is. What should we make of the research? Next, I talk a good game about chicken livers, but there’s a new study that seems to show they’re big repositories of arsenic. Should you stop eating chicken liver? And finally, I give a few tips for improving screen clarity when working outside on your laptop in full sun.

Let’s go:

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Dear Mark: Alcohol and LDL, Liverwurst, Coffee and Milk, Kid Snacks, and High Carb Questions

For today’s edition of Dear Mark, I’m answering 14 questions. The first concerns the effect of alcohol intake on LDL. Does it increase it or lower it (or both)? Next, what’s the best liverwurst to eat? After that, I discuss whether drinking coffee with milk makes the coffee antioxidants useless, followed by a quick list of good snacks for kids. The last ten questions concern cycling high-carb feeds on low-carb diets. They all come from one reader, and they’re very specific and well-constructed.

Let’s go:

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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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Dear Mark: Is a High-Carb, Low-Protein Diet Best for Longevity?

For today’s Dear Mark, I’m answering a question about the optimal diet for longevity. An article sent in by a reader claims that a recent mouse study has identified the perfect diet for everyone, but especially for older people: a high-carb, low-protein one. They even manage to throw in some stuff maligning the paleo diet (they just can’t resist).

Find out below if the claim holds water. Let’s go:

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