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: Marine Fat Sources, Not Gaining/Losing, Keto Breastfeeding

For today’s edition of Dear Mark, I’m answering three questions. First, what are some less expensive sources of marine fat high in omega-3s? Is canned salmon a good, safe, effective option? Second, a reader is training hard, eating low-carb/keto, doing IF, and feels pretty good despite not losing or gaining any weight? What should she do? What could she be doing wrong? And third, should you go keto while nursing?

Let’s go:

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Dear Mark: Japan and Meat, Circadian-Friendly Nightlights, Barefoot Hiking Tips

For today’s edition of Dear Mark, I’m answering three questions from readers. First up, what was my main takeaway from the “Japan and meat” video posted last week? Second, are there any circadian-friendly nightlights—ones that don’t negatively affect our natural secretion of melatonin or disrupt our circadian rhythm? And finally, what are my tips for barefoot hiking? How can someone get their feet acquainted with the natural ground, deal with sharp rocks and gravel, and learn to enjoy their barefoot experience in nature?

Let’s go:

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Dear Mark: Bedtime Routine, One Marker, DOMS, Primal Fantasy Lives, Basic Exercise, and Outside Eating Situations

For today’s edition of Dear Mark, I’m answering several questions from readers about my own personal routines and interests as well as a Primal take on beginning fitness. First, what’s my sleep hygiene routine? Do I even have one, and how has it changed over the years? Second, how do I make sure I’m staying on track in life? What’s the “one marker to rule them all”? Third, are there any good supplements or interventions for DOMS—delayed onset muscle soreness—due to training? Fourth, what are two places I’d love to live, and live Primally? Fifth, how should a totally inexperienced person who’s just lost a bunch of weight through eating alone get started with exercise? And sixth, how do I handle myself in eating situations where I have no direct control over the quality of ingredients (oils, etc) used?

Let’s go:

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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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Dear Mark: Saturated Fat More Harmful to Liver Than Sugar?

For today’s Dear Mark, I’m answering just one question from a reader. What are we to make of the new study purporting to show that saturated fat is the most harmful substance a liver can encounter? Should we remove all traces of it from our diets? Should we eat pure sugar? Quaff soybean oil? How relevant is an overfeeding study to a community of people dedicated to eating a sustainable, weight-reducing or -maintaining diet that includes saturated fat?

Let’s find out:

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Dear Mark: Tick Red Meat Allergy, Seventh-day Adventists, Magnesium and Carnivory

For today’s edition of Dear Mark, I’m answering a few questions and comments from last week’s post on the carnivore diet. First, Dawn gives us the unfortunate but necessary information that it’s not just the lone star tick who causes red meat allergy. Great. Second, what are 7-Day Adventists so healthy? Is it all because of their tendency to avoid meat, or is there something else? And third, I give some more thoughts on magnesium requirements on a carnivorous diet.

Let’s go:

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Dear Mark: More On Women and Fasting

Last week, I updated an older post on women and intermittent fasting. For today’s edition of Dear Mark, I’ll be answering some of the comments and questions from that post. First, should a lean woman with a stressful life try fasting to heal her gut? Maybe, maybe not. Second, does coffee break a fast? Now, where have I heard that one…? Is a 12-hour fast a good starting point for women? What are the IF “pre-reqs”? And finally, what do we make of women who can fast successfully? Does habituation have an effect?

Let’s go:

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Dear Mark: More Coffee Questions (plus a Vegan Vitamin Addition)

For today’s edition of Dear Mark, I’m answering five questions about coffee and one about vegan vitamins. First, was I wrong about Aeropress? Second, what’s my take on CA’s move to put a cancer warning on coffee? Third, is aluminum in coffee makers a problem? Fourth, how does instant coffee stack up? Fifth, how can a person figure out if mold toxins in coffee beans are causing “caffeine jitters”? And finally, are there any other vitamins I’d add to my recommendations for vegan keto dieters?

Let’s go:

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Dear Mark: Fitness (and Keto) Benefits of Baking Soda

For this week’s edition of Dear Mark, I’m answering a couple questions from the comment section of last week’s Weekend Link Love. First, what’s the effective dose of baking soda used in the autoimmune study? And is it safe for general use in doses of 1 tsp a day? In addition to the dose, I also discuss the many benefits of baking soda shown in the literature. Second, do sodium biocarbonate containing mineral waters offer the same benefits?

Let’s find out:

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Dear Mark: Phones in Bedrooms, Antidepressants, Pastured Egg Omega-6 Content

For today’s edition of Dear Mark, I’m answering three questions from readers. I’ve come down hard against phones in bedrooms in the past. Is there a “good way” to use your phone in the bedroom? Reader Kathy offered some good reasons for keeping a phone there; what do I think? Next, HealthyHombre laments having to take antidepressants (but he shouldn’t lament). And finally, I cover the differences in omega-6 between pastured eggs and conventional eggs.

Let’s go:

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