For today’s edition of Dear Mark, I’m discussing the seemingly evil qualities of palmitic acid, the preferred storage form of body fat in humans and many other mammals. Studies seem to indicate that pure palmitic acid has negative health effects, so should we be avoiding palmitic acid-containing foods like butter, meat, or palm oil? Then, I explain the health effects of eating really fast. As you’ll see, there are quite a few reasons to eat more slowly than quickly. I also include a few tips for fast eaters who want to slow down.
For today’s edition of Dear Mark, I discuss the connection – if one even exists – between cruciferous vegetables (and their goitrogens) and thyroid function. A theoretical interaction exists, but should this impact your decision to eat steamed broccoli? Next, I explain why I recommend one, maybe two days of sprinting a week, in contrast to the exercise studies that often use 3 or 4 days/week sprinting programs to great success. Then, I give a few tips for a person wondering about getting sufficient sources of Primal protein while on an Orthodox Lent fast. And finally, I explore the potential health effects of saunas.
Critics often lambast the Primal Blueprint and other ancestral/paleo ways of eating for what they see as fatal flaws:
First, that we don’t know what our ancestors were truly eating.
Second, that there wasn’t just one paleo diet.
Third, that even if we could know exactly what our ancestors were eating, it doesn’t mean those foods were the ideal foods; they were trying to eat whatever was available, not whatever was most nutritious or synergistic with their genome.
The idea that vegetables are an essential part of a healthy diet has been hammered into our collective consciousness by every authority out there. Parents, teachers, scientists, government health “experts” all stress the importance of eating your veggies. Problem is, they also told us that butter would kill us, margarine would save us, animal protein would give us cancer, and animal fat would give us heart disease. They said we should jog for an hour a day three days a week, that deadlifts would hurt our backs, and that we need to wear shoes with “good arch support.” Basically, conventional wisdom gets it wrong an awful lot of the time, so what should we think about the CW regarding vegetables? It’s a fairly common query I receive from readers:
Do you really need to eat vegetables – or plant matter in general – to be healthy?
You may have heard the big news: the paleo diet ranked dead last in the US News and World Report diet rankings. When my inbox floods with links to the latest paleo bashing in the media, I don’t even get surprised or annoyed anymore. It amuses me. The one downside of this stuff is that work grinds to a halt for a few hours because a popular pastime around the Primal headquarters whenever one of these reports comes out is to see who can pick the ripest, most ridiculous misconceptions or blatant falsehoods. The big upside is even more publicity, more notoriety, and more laughter. Laughter is always a good thing.
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