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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Tag: dear mark

Dear Mark: Low Carb Powerlifting, Why We Store Fat, Houseplant Bathing, and Elk Tallow

For today’s edition of Dear Mark, I’m answering four questions from readers. The first one comes from Mike, a powerlifter who’s looking to drop carbs and eat healthier without sacrificing his performance. Can he do it? Find out below. Next, what does the fact that we store fat in almost unlimited quantities tell us about the role it plays in our health? After that, I discuss how someone might incorporate “forest bathing” principles in their home. Last, I explore the nutritional benefits of wild elk fat and include its basic nutritional profile.

Let’s go:

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Dear Mark: Ornish on Paleo, CrossFit Workout Recovery, Nightshades, and Dry Heels

For today’s edition of Dear Mark, we’ve got a four-parter. First, Dean Ornish rears his head once again, this time making the claim that even paleo eaters with stellar lipid numbers invariably have clogged arteries. Should we listen? Next, what’s a good strategy for improving recovery from CrossFit workouts? More carbs, more protein, pre workout, post workout — what’s the deal here? Third, are nightshades responsible for hidden inflammation in everyone who eats them? Or is it just the folks who get joint pain and other confirmed symptoms who have to worry? And finally, I give a few tips for a frequent barefooter suffering from dry, cracked heels.

Let’s go:

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Dear Mark: More of Your 21-Day Challenge Questions Answered

Today, I’m doing another batch of 21-Day Challenge questions pulled from the ones you asked me two weeks ago. I managed to make it onto the third page of comments. I’d hoped to get through all of them, but with over 200 questions asked, the task proved insurmountable! Since they were by and large really great questions that deserve serious answers, though, I expect I’ll be drawing on them for future editions of Dear Mark. Stay tuned for that in the future.

This week, we’ve got questions about weight machine training, indoor sprinting, eating for drinking “more than moderately,” feeding kids, going Primal with a failing kidney, exercising kids, balancing sleep and exercise, going Primal as a vegetarian, and much more.

Let’s go:

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Dear Mark: Your 21-Day Challenge Questions Answered

As promised, today’s edition of Dear Mark is all about the 21-Day Challenge. Last week, you asked me a ton of questions. Today, I’m trying to answer as many of them as I can.

We’ve got questions about posture, weight loss, dairy, probiotics, alcohol, and much more. Hopefully, you find today’s post useful.

I’ll answer some more next week, so stay tuned for that. Now let’s get to it!

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Dear Mark: Burning Off Holiday Sugar, Long Bike Commute, and Low Calorie Diets for Teens

For today’s edition of Dear Mark, we’re answering three questions. First up, how can you mitigate and overcome an acute holiday sugar binge? What are the best exercises for getting rid of all that sugar, fast? Next, is a long (like, really long) bike commute congruent with a healthy Primal lifestyle, assuming you also want enough energy and time to lift weights, run sprints, and play with your kids? And finally, are there any downsides to calorie restriction in teens? Probably, so read on to find out.

Let’s go:

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Dear Mark: Candle Fumes Safety, Quest Bar Carbs, Minimalist Shoes for Track, and Walnut Oil

For today’s edition of Dear Mark, we’ve got a four-parter. First up, how safe are indoor candles? Do some emit toxic fumes? Are there certain types of candles we should prefer over others? The second question concerns the carb content of Quest Bars. Can we really disregard all the fiber and sugar alcohols when determining the amount of digestible carbohydrates contained in the bars?  Third, what should a high school track athlete look for in a minimalist running shoe, assuming Vibram Fivefingers are out of the question? I help her narrow down the most important attributes. And finally, I may caution against making high omega-6 nut oils like walnut oil a daily staple, but do those recommendations change if a person is using it to actively solve a health issue?

Let’s go:

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Dear Mark: Unraveling a Stress Ball, Fiber for Plant-Hating Tot, Offal with Grains, and Exercising with a Cold

For today’s Dear Mark, we’ve got a four-parter. First up is one from a woman in her mid-30s trying to recover from a three-year bout of chronic stress — and all the metabolic fallout that entails. Are there any supplements to help with her situation? Second, what do you feed a picky kid who hates vegetables, hates fruit with peels, and needs more prebiotic fiber? I give a quick list of ideas for getting things moving again. Third, are traditional foods like haggis and liver pâté worth eating if they contain non-Primal ingredients you’d usually avoid? Are the nutrients found in offal really that important? And finally, I help a reader figure out whether she should be exercising while sick.

Let’s go:

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Dear Mark: My Primal Investments

Cyber Monday Sweepstakes: Thrive Market, best described as Whole Foods meets Costco online, is giving you a chance to win hundreds of dollars worth of your favorite Primal foods and a free annual membership to their site. Thrive is on a mission to help make healthy living available and affordable to all American families. I’m a huge fan of what they’re doing. So much so that I’ve become an investor in the company. But more on that below. Enter the sweepstakes here, and you could be one of the lucky winners!

For today’s edition of Dear Mark, I discuss one of my very favorite subjects – investing in oneself – in relation to this whole Primal thing. I explain my theory of investing, why you should invest in yourself even if you’re working a 9 to 5 and have no desire to be an entrepreneur at all, and I give the story of how I decided to quit the (well-paying and stable) rat race and make the ultimate investment in myself and my future: starting Primal Nutrition. Then I discuss the Primal-friendly start-ups in which I’m currently invested, including a really exciting new venture that I think everyone here is going to dig (accompanied by a simple and potentially lucrative contest).

Let’s go:

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Dear Mark: Fat Gain on a Ketogenic Diet; Dandruff and an Itchy Scalp

For today’s edition of Dear Mark, we’ve got a two-parter. First up, I respond to a comment from last week’s Weekend Link Love concerning fat gain and lean mass loss in taekwondo athletes on a ketogenic diet. Did the athletes actually get fatter and lose muscle on their diet, even as performance improved? After that, I discuss what to do about dandruff and an itchy scalp. There may be no silver bullet against the common malady known as dandruff, but there are a few things you can try and one in particular that looks quite promising.

Let’s go:

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Dear Mark: Butter and Coagulation; Early Weaning and Growth Charts

For today’s edition of Dear Mark, we’ve got a quick two-parter. First up, I discuss the results of a 2008 study into the effect of high acute intakes of various fat sources on postprandial (i.e. after eating) blood coagulation markers. Since butter came out looking not so hot, a reader wonders whether this should impact our butter consumption. Find out what I think down below. And after that, I explore infant growth charts and early weaning from breast milk in response to a new father’s question about a doctor’s suggestion.

Let’s go:

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