Longman Dictionary of Contemporary English homepage

Topic: NUTRITION

Date: 1200-1300
Language: Old French
Origin: diete, from Greek diaita 'way of living, food to be eaten'

diet

1 noun
     
di‧et1 S3 W2
1 [uncountable and countable]DFN the kind of food that a person or animal eats each day
balanced/healthy/poor etc diet
It is important to have a balanced, healthy diet.
the effects of poor diet and lack of exercise
diet of
They exist on a diet of fish.
Bamboo is the panda's staple diet (=main food).
in somebody's diet
the importance of vitamins and minerals in your diet
2 [countable]DFN a limited range and amount of food that you eat when you want to get thinner
go/be on a diet
Lyn always seems to be on a diet.
3 [countable]DFN a limited type of food and drink that someone is allowed because they have a health problem:
a salt-free diet
4

a diet of something

too much of an activity that you think is boring or has bad effects:
Kids today are raised on a constant diet of pop music and television.
5 [countable] old-fashioned an official meeting to discuss political or church matters
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