Thursday, November 18, 2010

Ketogenic Diets for Epilepsy

I first came across this in Gary Taubes' "Good Calories, Bad Calories," but the New York Times Magazine has a pretty awesome write-up on the beneficial effects of a high-fat, super-low-carb ketogenic diet on sufferers of epilepsy.

Some might argue that unhealthful food is all we let Sam eat. His breakfast eggs are mixed with heavy cream and served with bacon. A typical lunch is full-fat Greek yogurt mixed with coconut oil. Dinner is hot dogs, bacon, macadamia nuts and cheese. We figure that in an average week, Sam consumes a quart and a third of heavy cream, nearly a stick and a half of butter, 13 teaspoons of coconut oil, 20 slices of bacon and 9 eggs. Sam’s diet is just shy of 90 percent fat. That is twice the fat content of a McDonald’s Happy Meal and about 25 percent more than the most fat-laden phase of the Atkins diet. It puts Sam at risk of developing kidney stones if he doesn’t drink enough. It is constipating, so he has to take daily stool softeners. And it lacks so many essential nutrients that if Sam didn’t take a multivitamin and a calcium-magnesium supplement every day, his growth would be stunted, his hair and teeth would fall out and his bones would become as brittle as an 80-year-old’s.

Evelyn, Sam’s twin sister Beatrice and I don’t eat this way. But Sam has epilepsy, and the food he eats is controlling most of his seizures (he used to have as many as 130 a day). The diet, which drastically reduces the amount of carbohydrates he takes in, tricks his body into a starvation state in which it burns fat, and not carbs, for fuel. Remarkably, and for reasons that are still unclear, this process -- called ketosis -- has an antiepileptic effect. He has been eating this way for almost two years.
(Source: New York Times Magazine)