Meaning & use

vitamin

noun·Everyday

Last updated

UK/ˈvɪtəmɪn/
US/ˈvaɪtəmɪn/

Meanings

  1. nouncountable

    One of a group of natural substances in food that the body needs in very small amounts to work properly and stay healthy.

    Grammar: Countable: you can say a vitamin, vitamins, or vitamin C.

    Patterns

    • vitamin A/B/C/D/E/K
    • take a vitamin
    • be rich in vitamins
    • a lack of vitamins

    Oranges are full of vitamin C.

    Children need vitamins to grow and fight illness.

    The doctor said I should take a vitamin every morning.

  2. nouncountable

    A pill or liquid containing these substances, taken as a supplement when the diet may not provide enough.

    Grammar: Often used in the plural: vitamins. Takes a plural verb: The vitamins are on the shelf.

    Patterns

    • take vitamins
    • a vitamin supplement
    • prescribe vitamins

    She takes vitamins because she doesn't eat much fruit.

    The store sells vitamins and herbal teas.

    My grandmother swears by her daily vitamins.

Word forms

pluralvitamins

Common combinations

vitamin C
Vitamin C helps the body absorb iron.
vitamin D
Sunlight helps your skin make vitamin D.
take vitamins
He takes vitamins every day to stay healthy.
a vitamin deficiency
A vitamin deficiency can cause tiredness and weak bones.
rich in vitamins
Fresh vegetables are rich in vitamins.

Synonyms and how they differ

nutrient
Nutrient is a wider word for anything in food the body needs, including protein and minerals, not just vitamins.
supplement
Supplement means a product you take to add something to your diet; it may contain vitamins, but also minerals or herbs.

Word family

vitamin-rich adjective
Containing a lot of vitamins: a vitamin-rich diet.

Commonly confused: vitamin or vital?

vitamin vs vital

Vital is an adjective meaning 'very important' or 'necessary for life'; vitamin is the noun for the food substance.

Practice

Oranges are a good source of ___ C.

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