I read somewhere (Taube's'ss book I think....sorry for the apostrophes and s suffixes but I remember someone getting their panties in a wad because some hapless forum member put the s or the apostrophe or both in the wrong place, and I can't remember where it's supposed to be, so I thought I'd party on it....)
Anyway....I read somewhere that a high carb diet IS a high fat diet, because the liver converts the carbs to fat and circulates that fat through the vessels. So you get all the downside of carbs (insulin) and you end up with the fat anyway. Far better to eat the insulin-neutral fat.
Zone diet on and off for several years....worked, but too much focus on exact meal composition
Primal since July 2010...skinniest I've ever been and the least stressed about food