Diet may refer to:
Food 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, foods that aid in creating a diet for weight loss or gain Healthy diet, the process of helping to maintain or improve overall health
Politics Diet (assembly), a formal deliberative assembly
Current National Diet, Japan's bicameral legislature, in its current form since 1947, composed of the House of Representatives and the House of Councillors Landtag, a diet of states and provinces in Germany, Austria, South Tyrol in Italy, and the national parliament of Liechtenstein Bundestag (Deutscher Bundestag), the lower house of Germany's Parliament, was established in West Germany in 1949, and all of Germany in 1990 Riksdag, the unicameral legislature of Sweden
Historical Diet of Finland, the legislative assembly of the Grand Duchy of Finland from 1809 to 1906 Diet of Hungary, the legislative assembly of the Kingdom of Hungary from 15th century to 1946 Imperial Diet (Holy Roman Empire), the imperial assembly of the princes of the Holy Roman Empire until 1806 Federal Convention (German Confederation), or Confederate Diet (German: Bundesversammlung or Bundestag) was the only central institution of the German Confederation (1815–1848 and 1850–1866) Reichstag Reichstag (German Empire) (Reichstag), the Diet of the Empire, the legislative assembly of the German Empire, 1871–1917 Reichstag (Weimar Republic), (Reichstag), the Diet of the Weimar Republic, from 1919 to 1933 Reichstag (Nazi Germany), (Reichstag), the Diet of Nazi Germany, from 1933 to 1945, a purely ceremonial "parliament" in a totalitarian dictatorship without elections
Television, film, or music "Diet", an episode of the Adult Swim animated television series, Aqua Teen Hunger Force The Diet (cartoon), a Beetle Bailey animated short "Diet", a 2020 single by Peakboy
Other uses DIET, an open-source middleware for high-performance computing
See also
List of diets Dietsch (disambiguation), distinguishes the southern dialects in the Middle Dutch language