The brain scans of increased dopamine activity post-sugar intake (in humans) in the same way as cocaine makes for a good argument of addiction via our own internal chemical response/sensitizing. I believe we are certainly programmed to seek out food sources that have a high energy potential- sugar, fat.. but, I also believe we are not equipped to deal with the ability to access sugar in the quantity and frequency we can now. Yes, I know
rats are not people- but I also feel a very different effect from eating, say a bowl of oatmeal or a pile of crispy skin chicken wings, to eating sugar or sugar/fat combos.. I can be in a normal state of mind, relaxed, not troubled.. and give me a good dose of sugar and I will then compulsively overeat/seek out more if given half the opportunity, to the point that it DOES interfere with my ability to concentrate and do what I need to.. it becomes an all-consuming focus, beyond a simple distraction. Is it because I only allow it very intermittently thus experiencing the "get it while you can" effect, or is it biochemical? It also requires a few days for the cravings to subside.. to me, it feels biochemical in nature, not behavior-driven. Nothing sets me off like sugar and especially sugar and fat combined.. I can make fatty sweet cupcakes with fake sugar products and they don't create the same compulsions, despite tasting and feeling like the real deal. Addiction? Not sure.. seeking the dopamine feel-good spike, certainly.. to me, I do lean towards the idea that certain foods (for lack of a better word) can be addicting.