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 Diet food (or dietetic food) refers to any food or beverage whose recipe is altered to reduce fat, carbohydrates, and/or sugar in order to make it part of a weight loss program or diet. Such foods are usually intended to assist in weight loss or ...

, 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 Landtag (State Diet) is generally the legislative assembly or parliament of a federated state or other subnational self-governing entity in German-speaking nations. It is usually a unicameral assembly exercising legislative competence in non ...

, a diet of states and provinces in Germany, Austria, South Tyrol in Italy, and the national parliament of Liechtenstein *

Bundestag The Bundestag (, "Federal Diet") is the German federal parliament. It is the only federal representative body that is directly elected by the German people. It is comparable to the United States House of Representatives or the House of Common ...

(''Deutscher Bundestag''), the lower house of Germany's Parliament, established in West Germany in 1949, and all of Germany in 1990

Historical

Diet of Finland The Diet of Finland ( Finnish ''Suomen maapäivät'', later ''valtiopäivät''; Swedish ''Finlands Lantdagar''), was the legislative assembly of the Grand Duchy of Finland from 1809 to 1906 and the recipient of the powers of the Swedish Ri ...

, the legislative assembly of the Grand Duchy of Finland from 1809 to 1906 *

Diet of Hungary The Diet of Hungary or originally: Parlamentum Publicum / Parlamentum Generale ( hu, Országgyűlés) became the supreme legislative institution in the medieval kingdom of Hungary from the 1290s, and in its successor states, Royal Hungary and ...

, 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) The Federal Convention (or ''Confederate Diet'' german: Bundesversammlung or Bundestag) was the only central institution of the German Confederation (german: Deutscher Bund) from 1815 until 1848, and from 1850 until 1866. The Federal Convention ...

, 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) The Reichstag () of the German Empire was Germany's lower house of parliament from 1871 to 1918. Within the governmental structure of the Reich, it represented the national and democratic element alongside the federalism of the Bundesrat and th ...

(''Reichstag''), the Diet of the Empire, the legislative assembly of the German Empire, 1871–1917 **

Reichstag (Weimar Republic) The Reichstag of the Weimar Republic (1919–1933) was the lower house of Germany's parliament; the upper house was the Reichsrat, which represented the states. The Reichstag convened for the first time on 24 June 1920, taking over from the We ...

, (''Reichstag''), the Diet of the Weimar Republic, from 1919 to 1933 **

Reichstag (Nazi Germany) The Reichstag ("Diet of the Realm"), officially the Greater German Reichstag (''Großdeutscher Reichstag'') after 1938, was the parliament of Nazi Germany from 1933 to 1945. In effect it essentially served as a rubber stamp parliament. Followi ...

, (''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 ''Aqua Teen Hunger Force'' (also known by various alternative titles), sometimes abbreviated as ''ATHF'' or ''Aqua Teen'', is an American adult animated television series created by Dave Willis and Matt Maiellaro for Cartoon Network's late ni ...

'' * ''The Diet'' (cartoon), a Beetle Bailey animated short * "Diet", a 2020 single by

Peakboy Kwon Sung-hwan (; born May 27, 1989), better known by his stage name Peakboy (), is a South Korean rapper, record producer, and singer-songwriter. He released his debut single "Gin & Tonic" in 2017 via SoundCloud and first mini-album ''Portrait ...

Other uses

DIET 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 ...

, an open-source middleware for high-performance computing *

District Institute of Education and Training For education in India, the District Institute for Education and Training (DIET) are district-level educational institutes which have been established in each district of India by the Indian government. They help in coordinating and implementing ...

, in India *DIET, direct electron transfer involving

bacterial nanowires Bacterial nanowires (also known as microbial nanowires) are electrically conductive appendages produced by a number of bacteria most notably from (but not exclusive to) the ''Geobacter'' and ''Shewanella'' genera. Conductive nanowires have also b ...

in species such as