Marks Daily Apple
Serving up health and fitness insights (daily, of course) with a side of irreverence.

Archive for the ‘ Dear Mark ’ Category

4 Jul

Dear Mark: Late Night Work Shifts

Ah, sleep. We need it, we love it, we crave it, we promise ourselves that we’ll get more of it, and yet quality sleep remains out of reach for so many of us these days. Some do it to themselves, staying up late to watch bad TV (or great TV, which is more understandable) and […]

27 Jun

Dear Mark: MCT Oil, Camelina Oil, and Fancy Canola Oil

Today’s Dear Mark roundup is a trio of oil-related questions. Learn about my adventures with MCT oil and whether it fits into a good eating plan. Hear about camelina, the “better flax.” And finally, we’ll go over whether fancy, cold-pressed canola oil is worth including or whether it’s still just canola oil. I’m thinking I’ll […]

20 Jun

Dear Mark: Hot Laptops, Wine Sulfites, Glutamine, Where’s Mackerel, and More

It’s Monday, and that means it’s time for another roundup edition of Dear Mark. This time, we’ll be covering laptops, fertility, and scrotal hyperthermia; sulfites in wine; glutamine as an anti-catabolic supplement; the scarcity of mackerel in the markets; and my hair engoldening protocol. If you prefer these roundup editions to the regular single question-and-answer […]

13 Jun

Dear Mark: D-Ribose, Bean Sprouts, Backyard Rabbits, and More

I haven’t gone to the rapid fire question-and-answer format in awhile, and you guys seem to dig it, so let’s do one today. We’ve got questions regarding a popular bodybuilding supplement, whether bean sprouts are Primal or not, the fatty acid composition of backyard rabbit meat, the old protein-leaches-calcium-from-bones myth, and my opinion on the […]

6 Jun

Dear Carrie: Cellulite

Hi again, everyone. Thanks for the comments and emails in response to my last post on menopause and hot flashes. I’m working on getting through your questions and hope to do several posts throughout the summer that speak specifically to issues that matter to women. Now that summer is here for most of the country, […]

30 May

Dear Carrie: Hot Flashes

Every week I attempt to field at least one reader question in my Dear Mark series of blog posts. Some of the inquiries that are submitted are outside my scope of knowledge or experience, or are questions that are addressed to my wife, Carrie, specifically. While I could (and have been known to) dig into […]

23 May

Dear Mark: Is Fluoride Safe?

Today’s question addresses a contentious topic in the health arena: fluoride. It’s in (most of) the tap water we use, (most of) the toothpastes with which we brush, and even (all of) the teas we drink. It represents a bloody stage upon which skeptics and the natural health folks battle it out. Many in the […]

16 May

Dear Mark: Does the Liver Accumulate Toxins?

Liver confuses and confounds many of us. It looks weird, gives off an odd mineral smell, and has a unique texture. We try to reconcile our horrible memories of Mom’s bone-dry renditions of the stuff with all the ethnographic literature describing how hunter-gatherers share precious slivers of the raw trembling organ immediately after a kill. […]

12 May

Yerba Mate: Miracle Tea or Just Another Caffeine Kick?

Yerba mate (YERB-ah mah-TAY). Ever heard of it? It is an herb with a storied history as an alternative to traditional teas for the inhabitants of its native South America. I’ve received numerous emails recently asking about its properties and its role in the Primal Blueprint eating plan. Let’s dive straight in. Yerba mate tea […]

9 May

Dear Mark: CLA Supplements

Today’s question comes from Ola and regards CLA, or conjugated linoleic acid. What is CLA? CLA is the “good” trans-fat that occurs naturally in meat and dairy, especially from grass-fed animals. In the stomach of ruminants like cows, sheep, or goats, millions upon millions of bacteria help the animal digest its food. They also help […]

2 May

Dear Mark: Soy Lecithin, Healthy Fat Alternatives, Wasted Workouts, and Magic Grapefruit

Things got a little heated regarding the milligrams of evil soy lecithin used as in emulsifier in most dark chocolates in last week’s Dear Mark post, so before launching into today’s questions and answers, let’s go over that. Soy lecithin is simply the byproduct of soy oil extraction. It’s not hydrogenated soybean oil, folks allergic […]

25 Apr

Dear Mark: Glutathione, Workout Nutrition, Cartilage Regeneration, Pam, and the Best of the Worst

It’s another round of rapid-fire Q&A with reader questions this week. Ever wonder about olive oil in a spray can, or which meat to choose when dining out? Do you have joint issues, or questions about workout nutrition? These readers do. Read on to learn my answers to these and other questions. And if you […]

11 Apr

Dear Mark: Apple Cider Vinegar, DNA Damage, Lactaid, and Miracle Noodles

I’m really liking these Monday morning rapid fire question-and-answer sessions – are you? At some point, I’ll get back to the musings, but as long as you keep sending in great questions, I’ll probably keep answering them. We’ve got four this week: vinegar and its effect on insulin levels, sugar and DNA damage, the nutritional […]

4 Apr

Dear Mark: Carob, Psyllium, Chia Seeds, and Vanilla

I enjoyed answering your questions last week, so let’s do it again today. We’ve got another triad this time, including another question from Hilde. There’s going to be a lot of fiber talk, some fecal discussion, and even a few bits regarding multi-level marketing schemes. I’m also going to discuss the virulent menace that is […]

28 Mar

Dear Mark: Rancid Fat, Store-Bought Mayo and Rice Bran Oil

It’s been a while since I published a Dear Mark post and it’s been a fairly anemic news week, so I thought I’d address a trio of (related) reader questions. If you’ve ever wondered what it means for a fat to be rancid (both for the fat and your body if you consume it), whether […]

5 Jan

Dear Mark: Seasonal Affective Disorder and Light Box Therapy

With holiday fun come and gone, it’s the time of year when we all truly settle into winter. Spring is a long way off at this point. The cold and darkness aren’t going anywhere any time soon. Most people find their way through the season with a mixture of enjoyment and impatience (and maybe a […]

30 Nov

Dear Mark: Are Hybrid Fruits and Vegetables Healthy?

Dear Mark, I was wanting to know if there is any danger in eating hybrid foods. I recently tried broccolini and then discovered that it was a hybrid between broccoli and Chinese kale. Is this dangerous to eat? Is it similar to GM? I would greatly appreciate your input on this before I start eating […]

16 Nov

Dear Mark: Sun Exposure and Glass

These days many of us go to work in the dark and leave greeted by the same. Those lucky enough to have windows next to their desks or work stations might think, “Hey, at least I get some sun exposure during the day.” But how does sun exposure through glass compare with direct sunlight? One […]

9 Nov

Dear Mark: The Origin of Human Infectious Disease

Just a light and playful topic for your Tuesday morning…. What can I say? Since my posts on human longevity, I’ve had germs on the mind. Aaron Blaisdell’s response to Part 2, however, truly inspired today’s topic: Excellent post! I wonder how much infection afflicted human populations prior to the adoption of animal domestication. Jared […]

2 Nov

Dear Mark: Primal Advice for High Schoolers

It’s a question that frequently comes my way. Teenagers, who have found MDA and jump on board with the PB, have their brand of difficulties going Primal: skeptical – if not disapproving – parents, decidedly un-Primal school lunches and social outings, team fast food stops, etc. How does a high schooler go Primal when his/her […]

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