 And sweet stuff was a signal for, yeah, there's calories here to sustain us against famine. So by perpetuating our craving for sweets, we may thereafter, in a subsequent meal, take in more carbs than we should. Or decide, like, what the heck, let's go all out and have a candy bar, some ice cream, a piece of chocolate. And that might subvert our efforts to be on a very low-carb diet.