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: Hype

The Real Deal On Keto Body Odor

I’m continuing my crusade of keto mythbusting. Recently, there was keto crotch, then keto bloat, and today I’m returning to one of the O.G. myths—keto body odor. Yes, it seems detractors of the keto diet are hell-bent on making you think your body will become a stinky, bloated mess if you dare to drop your carbs below 50 grams per day…but is it true? Here’s the spoiler: Yes, people in online keto diet forums occasionally complain about an unpleasant change in body odor when they first go keto. There is no scientific evidence that it actually happens, nor a clear, compelling explanation for why it would. Moreover, the anecdotal (and it’s all anecdotal) evidence suggests that if it does occur, it is rare and temporary. In other words, the whole idea of keto body odor seems to be exaggerated—shocking, I know.   That said, significant dietary changes can result in other physiological changes that may manifest in a variety of ways. Since nobody wants to be the stinky kid, let’s take this opportunity to look at what might be plausible about keto body odor and what to do if you think you’ve been afflicted.   What Causes Body Odor? First, let’s clarify what’s meant by “body odor.” In the medical literature, the term is used in reference to aromas associated with breath, urine, feces, vaginal secretions, sweat (usually from the axilla, or armpits), and general bodily essence as it were. Because it’s such a broad term, the causes are also extremely varied. For the purposes of this post, I’m going to use the term “body odor” to mean aromas from sweat and general bodily funk, since that’s what’s usually meant by keto body odor. Body odor arises when odorless compounds leave the body through glands in the skin and interact with microbes living on the skin’s surface. The microbes then release chemical compounds—what we actually detect as body odor. Typically, commercial deodorants target both pieces of the equation by using antiperspirants to minimize the excretion of the odor precursors and by creating an unfavorable environment for the microbes living on the skin. There is also a genetic component to how much individuals secrete compounds that cause body odor. Although a huge industry is built around trying to help people mask their natural odors—and suggesting that body odor is always the result of poor hygiene—bodily scents are actually quite important. Just as other animals do, humans use olfactory cues for recognizing kin, making judgments about others’ personality traits and attractiveness, and even for detecting fertility. Although we rarely recognize it, the data suggests that smell probably factors into all our face-to-face social interactions. Body odor can also result from illness. Before the use of sophisticated modern disease detection techniques, doctors were taught to use their sniffers as a diagnostic tool. Even today, smell can be an important clue that an individual is unwell. Often these odors emanate from the breath or urine, but certain infectious and metabolic diseases can be associated with … Continue reading “The Real Deal On Keto Body Odor”

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Keto Bloat: Separating Fact from Fiction

Move over, keto crotch. There’s a new fear-mongering anti-keto media blitz forming: keto bloat.

According to the “good scientists” of the Kellogg company food lab, an unprecedented number of young people are walking around with bloated guts and colons packed to the brim with impacted fecal matter, and it’s all because they’ve embraced ketogenic diets and “forsaken” fiber.

If this sounds like nonsense, that’s because it is.

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What’s the Pegan Diet? (And How Does It Compare To Primal?)

Because people don’t have enough diets to choose from already, there’s a new one on the scene: the Pegan diet. Actually it’s not that new—Dr. Mark Hyman started writing about it back in 2014, but it’s gained traction since he published his latest book last year, Food: What the Heck Should I Eat? According to Hyman, Pegan is a somewhat tongue-in-cheek play on the fact that it’s not quite Paleo and it’s not really vegan, hence Pegan. It claims to combine the best of both diets, namely a focus on eating lots of vegetables, as well as an emphasis on sustainable agriculture and ethical and ecologically sound animal farming. Setting aside the obvious issue that it’s 100% possible to be a vegan who eats few to no vegetables, or to be a paleo dieter who cares naught about the environment, Pegan is touted as being easier to stick to than either vegan or paleo (presumably because Pegan allows for consumption of foods not allowed on either). Frankly, trying to frame it as a bridge between the two hasn’t proved to be a seamless, happy compromise based on social media conversation, but that’s probably of little surprise to anyone here. I’ve had some readers ask me about the merits of Pegan and whether it offers any particular advantages over paleo/Primal, and I’m taking up that question today. (Note that I’m only focusing on the Pegan diet proposed by Dr. Hyman, not the “Pegan 365” diet offered by Dr. Oz. The latter isn’t paleo at all, allowing whole grain bread and pasta, corn, tofu, and a weekly “cheat day.” You can imagine my response to this version.) Defining the Pegan Diet These are the basic tenets of the Pegan diet in a nutshell: Focus on sourcing high-quality food – Prioritize organically grown and pesticide-free produce as well as meat, eggs, and fats from pasture-raised and grass-fed animals and finally sustainably harvested seafood. Choose seafood with the lowest possible mercury content. Buy local when you can. Avoid CAFO meats and foods containing chemical additives. Eliminate processed modern food-like substances and franken-fats – Processed carbohydrates have a high glycemic load and lead to excessive insulin production. Refined vegetable and seed oils such as canola and sunflower are pro-inflammatory. Avoid all such products. Go gluten-free – Even if you don’t have celiac disease or an obvious gluten sensitivity, modern wheat is still a frankenfood, and gluten can damage the gut. Occasional consumption of heirloom wheat (e.g., einkorn) is ok if you tolerate it. Go dairy-free – Dairy is problematic for most people and is best avoided. If you do decide to include some dairy, consider choosing goat and sheep milk products instead of cow. Grass-fed butter and ghee are acceptable. Make vegetables the centerpiece of your diet – Vegetables (mostly non-starchy) should comprise 75% of your diet. Enjoy healthy fats – Focus on omega-3s, as from small, oily fish. Eat plenty of healthy fats from grass-fed and pastured meats and whole eggs, nuts and seeds, … Continue reading “What’s the Pegan Diet? (And How Does It Compare To Primal?)”

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The Curious Phenomenon of “Keto Crotch”

I have a confession to make: I, Mark Sisson, suffer from keto crotch.

It’s embarrassing, really. I thought maybe it was just the change in climate moving from Malibu to Miami—the humidity, the heat, the fact that I’m paddling and swimming more often now. There’s a whole lot of moisture down there. Perpetual steaminess.

But then I met up with my writing partner and good pal Brad Kearns, who’s been working with me on my upcoming book. Brad lives in Northern California, which is far from hot or humid right now. He’s also a staunch keto guy most of the time, and, well, let’s just say I could smell him before I could see him. We met up at a coffee shop and cleared out everyone in a fifteen foot radius. We sampled a new exogenous ketone product he’s been trying and not one, not two, but three separate individuals approached to inquire if we were salmon fishermen.

Okay, let’s get serious. (And, yes—to address some reader confusion there—the above is pure satire.) Does “keto crotch” really exist? And, if it does, what can you do to prevent it?

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Is Keto Bad For Cholesterol?

We’ve all heard the story. Maybe we’ve even been the protagonist.

Person goes full keto. They lose a bunch of weight, normalize their pre-diabetic glucose numbers, resolve their high blood pressure readings, have more energy, feel great, and have nothing but high praise for the new way of eating.

Except for one thing, everything seems perfect: their cholesterol is sky-high. It throws a wrench into the whole operation, installs a raincloud over the procession, spoils their confidence.

“Could I be killing myself?”

“Are my health improvements just a mirage?”

In other words, are the apparent benefits of keto merely superficial if your cholesterol skyrockets?

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Is Iron the New Cholesterol?

One thing I’ve realized being in this game for so long is that if you’re convinced that meat truly is deadly, you’re not going to stop looking for reasons why. They’ve tried blaming just about every part of meat over the years, including the protein itself, the saturated fat, the cholesterol, the methionine, the char on BBQ, and even the obscure compounds like TMAO or Neu5gc. The latest component of meat they’ve zeroed in on is iron—the essential mineral responsible for energy production and a host of other vital functions.

The experts’ track record with all the other “evil meat components” has many of my readers skeptical, so they asked me to weigh in on iron.

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Why “Is It Keto?” Is the Wrong Question

Hey, folks! Today’s post is written by Dr. Lindsay Taylor. Lindsay is my co-author on The Keto Reset Instant Pot Cookbook and The Keto Reset Diet Cookbook. She also heads up our Keto Reset and Primal Endurance Facebook communities, and you might have heard her on the Primal Blueprint and Primal Endurance Podcasts. I’ve asked Lindsay if she would pop over to Mark’s Daily Apple from time to time to give us some insights from the front lines of the world of keto in addition to a few other topics. Enjoy!

Hi, everyone, thanks for having me here! Today I want to sort out one of the more common questions we get over in the Keto Reset Facebook community: “Is ____ keto?”

Fill in the blank with any type of food—beets, carrots, tomatoes, soy milk, cassava flour, you name it. It really doesn’t matter what food you insert into that blank because the answer I’m going to give is always the same:
There is no such thing as keto and non-keto food.

Now let me explain what I mean there….

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Keto Compared: Analyzing Keto Against Popular Diet Trends

“There can be only one.”

It’s the iconic quote from the only good Highlander movie, referring to the eternal battle immortal warriors wage across time to become the last of their kind and gain special powers over all lesser beings. I won’t say there can be only one perfect diet, but it is fun—and illustrative—to compare and contrast the different diets, not so much as a “contest” but as a method for winnowing out the differences and giving readers an idea of what might work for them.

Today, I’m going to compare the Keto Reset (my particular Primal brand of the keto diet) to other popular diet trends.

First, what is keto all about?

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8 Dietary Truths We Wish We Could Tell Non-Primal Types

Longtime readers of the blog are so inundated with the latest dietary research and results from years of personal experimentation that they often take the simple, basic dietary truths for granted. But it’s the simple ones that make the most difference. Today I’m going to sift through the knowledge base to winnow out the dietary truths that, while basic, fundamental, and important, are unknown or misinterpreted in the “normal population.” If you think someone you know or care about could learn from this list, send it along.

What follows are some basic dietary truths that everyone needs to understand.

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Dear Mark: Is Coconut Oil Pure Poison?

It appears that we’re well into “outrageous media frenzy over terrible or misleading claims by nutrition scientists” season….

Last week I covered the “low-carb” and mortality study, and for this week’s edition of Dear Mark I’m covering the (latest) coconut oil controversy. A Harvard professor recently launched a dramatic harangue against coconut oil, calling it “pure poison.” Is it true this time? Are we indeed killing ourselves?

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