memes

I dont think that's how it works. it's a two-part process:

first, the body craves diverse foods. if you eat a lot of something good, it stops seeming good. so you have a lot of fatty proteins for dinner, sweets seem more appealing.

second, there's ghrelin, the hormone that makes you hungry. when you eat, your blood concentration of it goes down and you get less hungry. glucose does NOT have this effect. perhaps because it's quick to digest and a fast energy source so it helps to eat more in a calorie poor environment, no sense getting full off berries.

so after dinner, your body still feels like it could eat more sugars. it's not until the stomach stretches that you feel full off dessert