It has more to do with the glycemic index of the food, that is now satient it is. 300kcal of rye bread (low GI) keeps your blood sugar much more even much longer than 300kcal candy bar (high GI). Both are "processed foods" but one is much more healthy than the other. Whole foods like fruits, vegetables etc. have almost always low GI: https://www.health.harvard.edu/diseases-and-conditions/glyce...