H.I.F.
This has a strong ring of truth to is, at least to me:
"The truth is, processed foods contain carefully orchestrated flavors and other sensory factors designed to be as addictive as possible. This is in stark contrast to whole foods, the taste and consistency of which was created by nature and therefore work with your body to satiate hunger and nutritional cravings.
"[J]unk food manufacturers have taken flavor science to extraordinary levels, and the artificial ingredients used to produce that sought after 'bliss point' can seriously confuse and befuddle your body's metabolism.
"For example, the sweetness from non-caloric artificial sweeteners tends to disrupt your metabolic response to real sugar, thereby exacerbating obesity and diabetes. Your body simply isn't fooled by sweet taste without calories, so it keeps signaling your brain to keep eating, as the point of satisfaction has not yet been reached."
Link.
