Oh yes we do have an answer. A scientific one to that: When we eat a lot, we raise our insulin a lot, moving the whole lot from the blood stream into our cells, creating a relatively fast drop in insulin and sugar in the blood stream (in medical terms known as hypoglycemia created by relative “dumping”, i.e. dumping a lot of food into the system and starting sugar/insulin running steep slalom rather than writing a gentle curve. The curve can be reset by lowering sugar and increasing protein, because protein does not raise insulin to create dumping. In addition, the stomach senses volume, and slowly reducing volumes resets this mechanism over time. Fiber delivers the necessary volume without the calories.
(You can see the curve in my book “The Food Tree” Amazon 2008).
Read the Article at HuffingtonPost