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: Gut Health

Some Primal Answers for Kids’ Problem Behaviors

Last week, Chris Kresser wrote a great article discussing the emerging—and likely causative—link between poor gut health and childhood misbehavior. He explained potential mechanisms for the association, as well as solutions to counter it.

But as any parent knows, getting a picky child to adopt your arsenal of perfect gut-supporting foods and supplements isn’t always easy. Not every kid immersed in the righteous anger of the terrible twos will stop what he’s doing to drink sauerkraut juice, nibble on kimchi, take resistant starch, drink kefir and bone broth.. It’s certainly a major part of the problem and the solution, but are there any other dietary causes? What else can a parent try to stem the flood of tantrums?

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Where Do Legumes Belong in the Primal Eating Plan?

I never cared much for legumes growing up. Growing up, beans were the “magical (or musical) fruit that made you toot.” They existed in a quantum state: beans were your ally in schoolyard rear-facing attacks and your downfall during encounters with that pretty girl from history class. But the issues I had were mostly superficial. I’ve never come out strongly against legumes. My focus has always been on grain avoidance.

Way back, I placed beans and lentils and other legumes in the “Okay” category. If you wanted to eat them, and you had carb calories to spare, they were a decent choice. Flatulence aside, they are relatively nutritious and come with a big dose of prebiotic fiber for your gut flora (hence the gas).

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Dear Mark: When Walking Is No Longer Enough; Fermented Foods and Depression

For today’s edition of Dear Mark, I’m answering two questions. First up, what happens when a brisk walk isn’t enough to attain the optimal fat-burning heart rate zone? It’s a good problem to have—better fitness—but it still needs a response. What activities can a person do to slightly increase the intensity without going over the target heart rate? And second, are fermented foods a potential cause of depression? If they have any effect on serotonin, could this cause problems rather than improvements?

Let’s go:

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Is Gluten Sensitivity All in Your Head?

First, non-celiac wheat/gluten sensitivity was a sham and everyone claimed its participants were in a collective mass delusion. Then some actual studies came out, and it appeared to be a real condition. Soon after, researchers offered different theories. Maybe it was FODMAP intolerance. Maybe it was all that wheat fiber messing up the gut. Maybe it was too little fiber and other fermentable substrate, and we were actually starving our gut bugs and compromising our intestinal health. Maybe it wasn’t even the gluten. And maybe it was actually some kind of a placebo. One of the most recent findings was that gluten sensitivity might not even exist. What’s the truth?

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12 Common Causes of Bloating (and How to Eliminate Them)

We’ve all been through it. You come home after a big day at the dog park, your owner pours a few cups of meaty kibble, and in your zest you can’t help but inhale the food. You chase it with a bowl-full of ice water. Sated, you try to lie down under the dining room table, but you can’t get comfortable. No position feels right. There’s something pressing on your insides. You feel like vomiting, but nothing comes out. Several dry retches later and the reality of the situation hits you: bloat. On goes the leash and you’re off to the emergency vet for a quick intervention.

Oh, wait. That’s not right. Sorry, I warged into my goldendoodle for a second. Bloat kills dogs. In humans, bloating isn’t fatal. But it is unpleasant, unattractive, and uncomfortable. It’s also difficult to pin down because it’s so nebulous. Let’s try anyway.

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Dear Mark: Are Probiotics Useless, Gluten-Free Diets Dangerous, and GMOs Completely and Utterly Safe?

For today’s edition of Dear Mark, I’m answering three questions from a single reader who just read an article from Vice. The article makes pretty bold assertions about topics that have already received a good deal of attention here on the blog. First, are probiotics actually useless? A new study cited in the article seems to suggest so. Next, is your gluten-free diet killing you? That’s what the author of the Vice article says. And finally, have GMO foods been conclusively proven to be safe and indistinguishable from non-GMO foods? Is the debate, more or less, conclusively over?

Let’s discuss:

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