One explanation for why it is hard to maintain a low-calorie diet is that
A) food restriction elevates insulin release, which triggers feeding.
B) we are fundamentally too lazy to exercise.
C) starvation releases dopamine, which makes us happy.
D) food restriction elevates ghrelin release, which triggers hunger.
E) low calorie foods suppress ghrelin secretion.

Question

Quizplus · Accepted Answer

Food restriction elevates ghrelin release, which triggers hunger. Ghrelin is a hormone that signals to the brain that it's time to eat. When we reduce calorie intake, the body responds by increasing ghrelin levels, leading to hunger pangs and cravings, making it harder to maintain a low-calorie diet.

One Explanation for Why It Is Hard to Maintain a Low-Calorie