Food is the most insidious drug there is. The above is also true for heroin, crack, cigarettes, and a bunch of other things, but yet many people cannot help themselves even when they know it’s bad. Food is by far the worst, most available one, with decades and likely trillions of dollars of research and optimization you have to fight your most base urges against. Almost everyone succumbs, and out of those only a small number can self-moderate, and out of those only a few are fine.