Diet

Diet may mean:

In nutrition:
* Diet (nutrition), the sum of the food consumed by an organism or group.
* Dieting, the deliberate selection of food to control body weight or nutrient intake.
* Diet food, those foods that aid in Dieting, e.g. Diet Coke

Other uses:
* Diet (assembly), formal deliberative assembly
* Dietsch, distinguishes the southern dialects in the Middle Dutch language
* Diet of Japan, Japan's legislature