dietary

American  

[dahy-i-ter-ee] / ˈdaɪ ɪˌtɛr i /

adjective

1. of or relating to diet.

   a dietary cure.

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noun

plural

dietaries

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

• dietarily adverb
• predietary adjective

Etymology

Origin of dietary

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

Example Sentences

"We have been very limited in what kind of dietary information we can provide patients," said Sidhartha R. Sinha, MD, an assistant professor of gastroenterology and hepatology and the senior author on the paper.

From Science Daily • Apr. 3, 2026

The approach applies to items marketed and labeled as dietary supplements and provided to insurance beneficiaries under the direction of a physician.

From Barron's • Apr. 2, 2026

The federal government has been promoting an upside down pyramid that features steak and cheese at the top, along with vegetables, to go along with its new dietary guidelines.

From The Wall Street Journal • Mar. 31, 2026

American Heart Assn. representatives advised the government on the science behind its dietary advice.

From Los Angeles Times • Mar. 31, 2026

From the sound of it, had I stayed in California I might have ended up in a cult or at the very least practicing some weird dietary restriction.

From "The Secret History" by Donna Tartt