It's possible you're conflating hunger/satiety with craving. If you couldn't eat another carrot, you're not hungry. Sugar (and anticipation of) gives you a dopa

It's possible you're conflating hunger/satiety with craving. If you couldn't eat another carrot, you're not hungry. Sugar (and anticipation of) gives you a dopamine boost, and we tend to crave when we have low circulating levels. Sugar consumption also increases levels of ghrelin (i.e. it makes you hungrier), and cravings. Notwithstanding that there's more to a healthy diet than vegetables. According to research, high protein intake can improve satiety on a caloric deficit. Some level of fat intake goes a ways too; some vitamins are fat-soluble. Potato is the most satiating vegetable there is, gram per gram. It's not well understood how nutrient deficiency influences hunger, but it's possible your diet didn't hit nutrient targets.