diet

Noun

• the act of restricting your food intake (or your intake of particular foods)

• the usual food and drink consumed by an organism (person or animal)

• a legislative assembly in certain countries (e.g., Japan)

• a prescribed selection of foods

Verb

• eat sparingly, for health reasons or to lose weight

• follow a regimen or a diet, as for health reasons
  • He has high blood pressure and must stick to a low-salt diet