Among the schemes differentiated, one of the most famous is that of Michel Montignac. This method provides separate meals between those with primarily fats and proteins, and especially those based on sugars and proteins.

When we speak of sugars in the diet, it is almost exclusively carbohydrates, ie, those that affect glycemic basis (dried vegetables, wholemeal bread). The great advantage of this scheme is to focus on carbohydrates and fiber, and not restrict virtually any class of food, except fast sugars.