Up in the arctic, life struggles to thrive. A rocky and frigid landscape supporting little more than meager shrubs, grasses, and some berries in the summer, it’s proven too hostile for more than a few animal species that have specially evolved to polar environs. Yet despite the harsh conditions, thousands of years ago human beings managed to etch out a life for themselves in the snows. These peoples’ ability to live in these regions is mostly due to a diet that to most of us seems narrow and anemic, but in truth has proven itself one of the most robust and healthy in the world.
Arctic diets vary vastly from region to region, according to the local environment’s flora and fauna. But at their most extreme, they consist of almost nothing but meat and fish, often from animals rich in fat (think polar bears, seabirds, and whales). For those of us who grew up learning the American Food Pyramid, or even the unholy devilcraft that is the new “My Plate” system, such a meat-heavy diet sounds borderline suicidal. But when eaten raw, these animals’ organs provide ample nutrients, including the vitamins we temperate-zoners draw mostly from plants. Blubber is also surprisingly rich in heart-healthy monounsaturated and polyunsaturated omega-3 fats and natural fermentation provides arctic diets with the benefits of probiotic foods. The result is a food regimen that provides everything a human needs, as well as one of the greatest natural defenses against diabetes, heart disease, certain types of cancer, and perhaps even seasonal effective disorder, illustrating that in any diet, there are no essential food groups, just essential nutrients. [continue].
How fascinating is that? I love reading about traditional diets, and have, over the years, changed my own diet quite a bit in order to cut out all processed food. These days I try to eat the sort of foods that humans ate before industrialization and nutritional stupidity. Are any of you doing that, too?
I ate reindeer meat in Norway, though I haven’t tried reindeer blood. Perhaps on another visit I will see if there are any Sami communities that welcome visitors like me.
Have you come across any of Gary Taubes’ writing? If you’ve got the slightest interest in nutrition, history, and health, he is worth your attention. Here’s a recent article of his from the Guardian: Is sugar the world’s most popular drug?
Imagine a drug that can intoxicate us, can infuse us with energy and can be taken by mouth. It doesn’t have to be injected, smoked, or snorted for us to experience its sublime and soothing effects. Imagine that it mixes well with virtually every food and particularly liquids, and that when given to infants it provokes a feeling of pleasure so profound and intense that its pursuit becomes a driving force throughout their lives.
Could the taste of sugar on the tongue be a kind of intoxication? What about the possibility that sugar itself is an intoxicant, a drug? Overconsumption of this drug may have long-term side-effects, but there are none in the short term – no staggering or dizziness, no slurring of speech, no passing out or drifting away, no heart palpitations or respiratory distress. When it is given to children, its effects may be only more extreme variations on the apparently natural emotional rollercoaster of childhood, from the initial intoxication to the tantrums and whining of what may or may not be withdrawal a few hours later. More than anything, it makes children happy, at least for the period during which they’re consuming it. It calms their distress, eases their pain, focuses their attention and leaves them excited and full of joy until the dose wears off. The only downside is that children will come to expect another dose, perhaps to demand it, on a regular basis. [continue]
Today the BBC published an article that is awesome on so many levels. It is The sugar conspiracy. The summary:
In 1972, a British scientist sounded the alarm that sugar – and not fat – was the greatest danger to our health. But his findings were ridiculed and his reputation ruined. How did the world’s top nutrition scientists get it so wrong for so long?
And indeed, how did they?
If you care about health, science, and whether the nutrition advice you’ve tried to follow is nonsense or not, this is worth your time.
“Slim by Chocolate!” the headlines blared. A team of German researchers had found that people on a low-carb diet lost weight 10 percent faster if they ate a chocolate bar every day. It made the front page of Bild, Europe’s largest daily newspaper, just beneath their update about the Germanwings crash. From there, it ricocheted around the internet and beyond, making news in more than 20 countries and half a dozen languages. It was discussed on television news shows. It appeared in glossy print, most recently in the June issue of Shape magazine (“Why You Must Eat Chocolate Daily”, page 128). Not only does chocolate accelerate weight loss, the study found, but it leads to healthier cholesterol levels and overall increased well-being. The Bild story quotes the study’s lead author, Johannes Bohannon, Ph.D., research director of the Institute of Diet and Health: “The best part is you can buy chocolate everywhere.”
I am Johannes Bohannon, Ph.D. Well, actually my name is John, and I’m a journalist. I do have a Ph.D., but it’s in the molecular biology of bacteria, not humans. The Institute of Diet and Health? That’s nothing more than a website.
Other than those fibs, the study was 100 percent authentic. My colleagues and I recruited actual human subjects in Germany. We ran an actual clinical trial, with subjects randomly assigned to different diet regimes. And the statistically significant benefits of chocolate that we reported are based on the actual data. It was, in fact, a fairly typical study for the field of diet research. Which is to say: It was terrible science. The results are meaningless, and the health claims that the media blasted out to millions of people around the world are utterly unfounded.
If you are reading this before breakfast, please consider having an egg. Any day now, the US government will officially accept the advice to drop cholesterol from its list of “nutrients of concern” altogether. It wants also to “de-emphasise” saturated fat, given “the lack of evidence connecting it with cardiovascular disease”.
This is a mighty U-turn, albeit hedged about in caveats, and long overdue. The evidence has been building for years that eating cholesterol does not cause high blood cholesterol. A 2013 review by the American Heart Association and the American College of Cardiology found “no appreciable relationship between consumption of dietary cholesterol and serum [blood] cholesterol”.
Cholesterol is not some vile poison but an essential ingredient of life, which makes animal cell membranes flexible and is the raw material for making hormones, like testosterone and oestrogen. Your liver manufactures most of the cholesterol found in your blood from scratch, and adjusts for what you ingest, which is why diet does not determine blood cholesterol levels. Lowering blood cholesterol by changing diet is all but impossible.
Nor is there any good evidence that high blood cholesterol causes atherosclerosis, coronary heart disease or shorter life. It is not even a risk factor in people who have already had heart attacks. In elderly people — ie, those who have the most heart attacks — the lower your blood cholesterol, the greater your risk of death. Likewise in children. [continue]