Most of the low-carbers I know end up experimenting with intermittent fasting at some point in their...
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 have your own pressing nutrition and fitness quandaries shoot me a line and I’ll try to answer them in a future “Dear Mark” post.
What do you know about Glutathione and what is your opinion of it?
One of the great things about our growing community is how people like Denise Minger have emerged from near obscurity to become recognized leaders in certain areas. When it comes to parsing the scientific studies, very few people have the combination of skills, understanding of the scientific method and probability, AND the willingness to dig deep into the minutiae to get to the essence of a study. Denise is one of those rare people. If you haven’t read Denise’s take-down of the China Study, you owe it to yourself to do so.
Lucky for us, Denise has taken the time to dig into the latest research on diet and breast cancer in today’s guest post. (Thank you!) Without further ado, Denise…
If you’ve been scanning the health news lately (or live within earshot of some gloating low-fat adherents), you might’ve noticed a flurry of recent headlines linking fat and cholesterol to breast cancer. In case you haven’t, this should get you up to speed:
Elevated fat and cholesterol levels linked to higher risk of breast cancer
Cholesterol and fat in American diet fuels breast cancer
High intake of cholesterol may lead to greater risk of breast cancer
Catch the drift?Read More
Diabetes is that rare brand of nasty disease that fails to strike real, visceral fear. It doesn’t carry the weight of a cancer or an AIDS or a heart disease. It’s something you get, like a gut, a long list of prescriptions, and a walker, as you grow older. People just live with it – millions upon millions across the world – and are rarely shocked or surprised to hear that others have it. Their ranks are ever growing, with, if a recent study on the effects of gestational diabetes on the fetus has anything to say about it, much of the conscription taking place in the womb. It’s called intergenerational diabetes, and it means that pregnant women with diabetes or even just poor maternal glucose tolerance could be turning their little ones into future type 2 diabetics. This is fetal diabetes without a genetic component; this is epigenetic owing to environmental (womb) input. The authors speculate that pregnant mothers with type 2 diabetes (diet and lifestyle induced, remember) could engender irreversible alterations to both the unborn kid’s hypothalamic neural network (where leptin, the satiety hormone, does its thing), pancreatic function, and muscle and liver insulin signaling. The idea is that they pop out with type 2 diabetes right off the bat. It’s diet-induced, sure, but not how we normally think of it. No baby bottle full of Coke required here. Of course, I still see this sort of condition as being reversible with diet and exercise…it’s just that it will require a LOT more adherence and starting at an earlier age. Moving on…Read More
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 Diamond has discussed how animal domestication led to an increased transfer of viral infections (e.g., colds, flu, small pox, TB, etc.) from farm critter to human. Prior to the domestication of animals such viral transfers were probably rare. Death from viral infection may have been much lower in pre-pastoral times.
So, what kind of infectious landscape did our paleo hunter-gatherer ancestors inhabit? Did their living conditions do more to imperil or spare them? And how did their chances change once they acquired agriculture and animal husbandry? How does it compare to the picture in our modern age?Read More
This post is the first in what may become a new series here on MDA. Most of my articles are full-length feature articles. While I love and will continue to do them I think there’s room for a post each week that’s a little less formal; something shorter than my usual fare that’s published each Monday (along with the WOW) that allows me to spout off on any number of things on my mind. I’ll likely be reviewing the latest medical research and ranting on hot topics in the news. What do you think? Would you like a hodgepodge collection of my thoughts on the world of health and fitness? I hope so, because I’ve got a lot to say! Let me know what you think in the comment board. And now… the inaugural Monday Musing…
Marathon running is supposed to be good for you, which is why so many people (intend to) do it. The overweight and the untrained often use the successful completion of one as a landmark on their weight loss journey, sometimes the goal itself. Others think, erroneously, that it’s part of an anti-aging strategy. If you can run a marathon, you are fit, or so the story goes.Read More
Our concept of health only exists in opposition to its absence. Healthy is the default position. We’re not “supposed” to get strokes, coronary heart disease, diabetes, or cancer. Sure, a few people, here and there, are far more likely to suffer the ravages of the degenerative diseases of civilization, but the real numbers are inflated. For most of the population, we can avoid the worst of it, and if you spend a bit of time on MDA or any other ancestral online communities, you’ll see example after example of people taking charge of their health and experiencing newfound vibrancy. We’ve all gotta die someday, but we most assuredly do not have to die at 56 from a clogged artery.
But I cover longevity plenty. As you know, I’m also interested in increasing one’s enjoyment of life; I’m a big quality over quantity guy (both are good as long as the former is satisfied). And for my money, I can’t think of anything so central to our enjoyment of life as the ability move around pain free.Read More
Hypothyroid has been covered to death before. I’m particularly fond of The Healthy Skeptic’s coverage – check out Chris Kresser’s ongoing series (possibly before you read on) for some great information on the thyroid. Carnivorous Danny Roddy did a good piece on it last year as well. As such, I won’t be redoing or rehashing an “intro to thyroid.” Instead, I’ll give a brief overview and then discuss why I think some of us may be looking at thyroid “dysfunction” in the wrong light.
The thyroid is a complicated little bugger wielding a lot of influence over the metabolism, and it seems like just about anything has been fingered as a trigger of its dysfunction. Lack of carbs in the diet, too few calories, too much iodine, too little iodine, too many grains, intermittent fasting, excessive cortisol, and multiple other factors have gotten the blame. Unraveling the multiple potential triggers for its dysfunction can be tough. But is dysfunction always the right way to describe a slight reduction in thyroid hormones? I’m not so sure.Read More
By numerous accounts, this spring has been the most brutal in years for seasonal allergy sufferers. (Do I see some nodding heads out there?) As much as everyone looks forward to spring, some folks grit their teeth for several weeks or live on a steady dose of allergy pills. I always get questions this time of year from folks who are looking for ways to get through spring a little happier and maybe less medicated. Here’s one such email from reader Joyce….
I’m from the Upper Midwest where spring came early this year. No complaining about that, mind you – we earn our warm season! I’ve always had problems in spring, but this year I’ve been in really bad shape (like everybody what I hear). I’m relatively new to your site, and I’m slowly adopting elements of the Primal Blueprint. So far, it’s been going great! It’s got me thinking though about diet and whether what I eat/don’t eat can make any difference. What’s your take on this? I’d love any recommendations that could get me in the garden earlier!Read More
The thing about overtraining is that it exists on a spectrum, without clear-cut rules or boundaries. As I said last week, sufficient training volume is entirely subjective, and it’s constantly changing depending on an individual trainee’s goals, nutrition, sleep habits, stress levels, and injury status. What worked well for the last three months might prove to be excessive if your diet gets disrupted. A particularly stressful stretch at the office could undo a heretofore-steady strength progression. The human body is resilient, but there are limits – and the limits aren’t always clearly delineated. To divine them, it takes finesse and thoughtful tinkering at the edges. Sometimes you have to fall off the edge to know where it is. It’s more art than science. There are some solid, basically objective ways to deal with it, though, even if you’re not sure what constitutes overtraining for you.Read More
When you spend some time among the ever-growing circle of evolutionary-based health writers, thinkers, bloggers, and doctors, you notice a curious thing happening. Conventional Wisdom is becoming turned on its head. Saturated fat is generally healthy and excessive endurance training is generally unhealthy become the presiding narratives. Grains are either unnecessary or have the tendency to attack the gut lining, even guts with “clinically undetectable levels of sensitivity.” You don’t need six square meals a day to keep your metabolism up and running, after all; one or two a day will do just fine.
Less is more – as far as exercise goes – is becoming another accepted truth, especially when you understand that 80% of your body composition is determined by how you eat.Read More