dietary

American  

[dahy-i-ter-ee] / ˈdaɪ ɪˌtɛr i /

adjective

1. of or relating to diet.

   a dietary cure.

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noun

dietaries plural

1. a regulated allowance of food.

2. Obsolete. a system or course of diet.

dietary British  

/ ˈdaɪətərɪ, -trɪ /

adjective

1. of or relating to a diet

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noun

1. a regulated diet

2. a system of dieting

Other Word Forms

Derived Forms

• predietary
  adjective
• dietarily
  adverb

Inflected Forms

noun

• dietaries
  plural

Etymology

Origin of dietary

1400–50; late Middle English dietarie system of diet. See diet ¹, -ary

Example Sentences

Some questions to pose to the group before the trip include: Does anyone have any dietary restrictions?

From MarketWatch • Jun. 11, 2026

"As our understanding of these compounds grows, there is a real opportunity to make dietary guidance more specific and more effective."

From BBC • Jun. 8, 2026

That means looking at appetite, weight change, chewing or swallowing problems, dietary variety, medical conditions, medication use and whether someone has enough support to shop, cook and eat well.

From Science Daily • Jun. 6, 2026

A smartphone might book restaurant reservations on its own because it has users’ calendars and knows their dietary restrictions.

From The Wall Street Journal • Jun. 5, 2026

He doesn’t care about their dissertation topics, or their dietary restrictions, or the color of their walls.

From "The Namesake" by Jhumpa Lahiri