Any thoughts on this?:
I have the suspicion that we will soon find that healthy diets are:
-- High meat and fat, low carb, with very little sugar, but not calorie restricted, or
-- Low meat and fat, high carb, with very little sugar and no processed flour, but maybe not enormously calorie restricted, or
-- A calorie-restricted diet of whatever mix of meat and carbs you want, but with very little sugar.
Eating low sugar (especially fructose) will, I think, be an important part of any of them.