1 : the food that a person or animal usually eats [count] ▪ Diets that are rich in fruits and vegetables have been shown to help prevent disease. ▪ a balanced diet — often + of ▪ Many birds live on a diet of insects. [noncount] ▪ studying the association between diet and disease 2 : the kind and amount of food that a person eats for a certain reason (such as to improve health or to lose weight) [noncount] ▪ She lost a lot of weight through diet and exercise. [count] ▪ a low-fat diet ▪ a liquid diet ▪ He's on a diet. [=he is eating less food or only particular kinds of food in order to lose weight] ▪ He went on a diet and lost 30 pounds in six months. 3 [singular] : something that is provided or experienced repeatedly — + of ▪ We've been given a steady diet of political scandals in recent months.





