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19 Oct

Dear Mark: Depression Diet?

I occasionally get emails from readers who are interested in lifestyle changes that can either complement or replace their conventional treatments for depression. Since our post a few weeks ago on antidepressants, I’ve gotten a slew of emails asking me about the role of nutrition in mental health. In response I thought I’d devote a Dear Mark to the general question of diet and depression. Thanks to all who wrote in or commented on the boards or forum!

It comes as no surprise that nutrition directly impacts brain performance just as it does the functioning of every other organ. Although the roots of clinical depression involve a complex (and theoretically contentious) mix of physiological, genetic and socio-emotional factors, the physical picture hones in on neurotransmitters, chemical messengers that travel between nerves in the brain. Of all the neurotransmitters, the key players in mood disorders are dopamine, norepinephrine and serotonin. When we talk about a diet that supports mental health, we’re essentially looking at nutrition that sustains both optimal neurological functioning and hormone balance.

6 Oct

You Might Want to Sit Down for This

Or maybe you don’t. It turns out that sitting in a chair – that time honored tradition we commonly associate with rest, relaxation, and recuperation (don’t forget mind-numbing work, too!) – is actually bad for us. At least, the way we approach sitting is health harmful. The occasional dalliance with a straight-backed office chair probably isn’t a problem, but when we spend most of our waking life sitting (or, even worse, slumping over) in a chair, we invite disaster. Such sedentarism is a real problem, and a recent one. Grok certainly wasn’t bound to a desk. He may have had more off time than we do (if modern hunter-gatherers are any indication), but he didn’t spend it subjecting his body to extended bouts of unnatural contortions. And there’s the other big difference: the way we sit is completely unnatural. Instead of sprawling out, hands behind our heads, legs outstretched, we moderns “relax” in a chair – a piece of furniture with which we have relatively new relations.

23 Jul

The Definitive Guide to Saturated Fat

It’s probably the one thing that prevents people from fully buying into the Primal Blueprint. Almost anyone can agree with the basic tenets – eating more vegetables, choosing only clean, organic meats, and getting plenty of sleep and exercise is fairly acceptable to the mainstream notion of good nutrition. The concept of Grok and a lifestyle based on evolutionary biology can be a harder sell, but anyone who’s familiar with (and accepts) the basics of human evolution tends to agree (whether they follow through and adopt the lifestyle is another question), at least intellectually. But saturated fat? People have this weird conditioned response to the very phrase.

“But what about all that saturated fat? Aren’t you worried about clogging up your arteries?”

20 Jul

Food Labeling Nonsense

I thought I’d forgo my regularly scheduled “Dear Mark” Monday post (or “Dear Readers” as the case may be) for a subject very near and dear to my heart: the constantly-evolving, ever-confusing ways of the food rating labelers. Whether it’s the AHA-approved red “Heart Healthy” stamps that implore overweight diabetics to stuff themselves with “healthy” whole grains or the mention of antioxidant and fiber content somehow making that sugary breakfast cereal good for your kids, packaged food distributors seem to love making outlandish claims that bear little to no fruit. It’s incredibly effective, though, for the same reason people will believe anything they hear on TV or uttered by someone with an official title. We’ve already got a far-reaching bunch of bureaucrats at the FDA deciding which macronutrients to highlight and which to demonize on the official nutritional labels that adorn the back of every packaged food item, so the natural next step is a mishmash of extraneous labeling that tries to make nutritional recommendations based on the FDA data (which is itself based on flawed, misguided, or even blatantly false science).

14 Jul

A Quick Guide to Edible Seeds

Seeds get a whole lot of superficial love around here, but not much specificity. A quick review of our archives reveals that we have yet to really delve into what we include as one of the five basic Primal staples. Meat, vegetables, fruit, and nuts have all been discussed ad nauseum (with more to come, no doubt), but seeds? Barely a peep. Oh, sure, while I constantly rail against the non-edible seeds (well, technically they can be eaten, but never in the raw state) – cereal grains and legumes – and question whether we should be eating certain seeds at all, I think I’m overdue for a celebration of (or a critical look at) all the other edible seeds to which I allude so often.

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