dietitian

noun

di·​e·​ti·​tian ˌdī-ə-ˈti-shən How to pronounce dietitian (audio)
variants or less commonly dietician
: a specialist in dietetics

Examples of dietitian in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But claims of extra benefits — like boosting metabolism — aren’t well-supported by evidence, says the dietitian Meaghan Ormsby, RDN, an intuitive eating and wellness travel expert at the Nutrition Travel Exchange. Emily Kay Votruba, EverydayHealth.com, 7 Apr. 2026 Here, registered dietitians share how drinking milk every day affects your body, plus how much to drink for the most benefits. Kirsten Nunez, Martha Stewart, 4 Apr. 2026 While there is real science behind how certain foods work together in the body, dietitians said this trend stretches that science a bit too far. Kathleen Ferraro, Verywell Health, 2 Apr. 2026 Older adults may need as much as 80 to 140 grams per day in total, Amy Burkhart, MD, RD, a physician and registered dietitian who specializes in gut health, previously told SELF. Caroline Tien, SELF, 27 Mar. 2026 See All Example Sentences for dietitian

Word History

Etymology

dietitian irregular from diet entry 1 + -ician

First Known Use

circa 1846, in the meaning defined above

Time Traveler
The first known use of dietitian was circa 1846

Browse Nearby Words

Cite this Entry

“Dietitian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dietitian. Accessed 17 Apr. 2026.

Kids Definition

dietitian

noun
di·​eti·​tian
variants or dietician
ˌdī-ə-ˈtish-ən
: a specialist in dietetics

Medical Definition

dietitian

noun
di·​eti·​tian
variants or dietician
: a specialist in dietetics

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