Meaning & use

lactose intolerant

adjective·Everyday

Last updated

UK/ˌlæktəʊs ɪnˈtɒlərənt/
US/ˌlæktoʊs ɪnˈtɑːlərənt/

Meaning

  1. adjectivecomparablemedical

    Unable to digest lactose, the sugar in milk, properly, so that dairy foods cause stomach discomfort.

    Grammar: Used after 'be' or before a noun: She is lactose intolerant; a lactose intolerant child.

    Patterns

    • be lactose intolerant

    I am lactose intolerant, so I order oat milk in my coffee.

    Many adults around the world are lactose intolerant.

    The restaurant marks dishes that suit guests who are lactose intolerant.

Common combinations

be lactose intolerant
My brother found out he was lactose intolerant at age twenty.
a lactose intolerant person
A lactose intolerant person may still tolerate yogurt.
diagnosed as lactose intolerant
She was diagnosed as lactose intolerant after some tests.
become lactose intolerant
Some people become lactose intolerant as they grow older.

Synonyms and how they differ

dairy intolerant
This is less precise because it could mean a reaction to milk proteins, not only the sugar lactose.

Opposites

lactose tolerant

Word family

lactose noun
the natural sugar found in milk
lactose intolerance noun
the condition of being unable to digest lactose
lactose-free adjective
made without lactose

Commonly confused: lactose intolerant or allergic to milk?

lactose intolerant vs allergic to milk

A milk allergy is an immune reaction to milk protein and can be dangerous, while lactose intolerance is a digestive problem and not an allergy.

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