Dear Daniel,

So your point that high fat diets do not cause obesity is technically correct. However this does NOT serve as evidence that genes (but not diet) controls weight. This is evidence that HIGH CALORIE diets, not high fat diets are the key to obesity. Your body turns simple sugars and carbohydrates turns into fat when you eat it but don't burn it right away.

Also, if you think genes (not environment/dietary input) control obesity, why the big change in the last half a century?? That's some KILLER evolution. And I mean that in both senses.

Sometimes the sloppiness of science reporting on SLATE really drives me to the brink of madness. Where are the editors, where is someone with some modicum of scientific training and skepticism????