There are lots of other things. Nutritional advice on breakfast, for example, is not based on anything more substantial than correlational studies. It ignores the contradictory evidence of traditional eating patterns that avoided breakfast.
I could go on. We're told to eat a low cholesterol diet, for example, even though blood cholesterol is not directly affected by dietary cholesterol in most cases.
I don't have too many supporting links, hopefully someone else can fill the gap. But the cochrane review is a good source of reviews of the state of our evidence.
Much of our current 'low fat, high carb' advice stems from the McGovern commission:
http://en.wikipedia.org/wiki/United_States_Senate_Select_Com...
This article provides a good overview:
http://www.slate.com/articles/health_and_science/medical_exa...
There are lots of other things. Nutritional advice on breakfast, for example, is not based on anything more substantial than correlational studies. It ignores the contradictory evidence of traditional eating patterns that avoided breakfast.
I could go on. We're told to eat a low cholesterol diet, for example, even though blood cholesterol is not directly affected by dietary cholesterol in most cases.
I don't have too many supporting links, hopefully someone else can fill the gap. But the cochrane review is a good source of reviews of the state of our evidence.