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.
Here’s what dietitians and nutrition experts say about the most popular brands — including how their sodium, sugar and sweetener formulas actually compare. Charlotte Observer, 6 May 2026 With so many products on the market, knowing what each formula actually delivers — and what dietitians and reviewers say about them — can make the difference between an effective hydration habit and a sugary placebo. Sacbee.com, 6 May 2026 In other words, more isn’t always better, said Matthew Landry, PhD, RDN, a dietitian at UC Irvine. Zoe Cunniffe, Health, 30 Apr. 2026 The first step is talking to your doctor, dietitian, counselor or other professional to come up with a plan that works best for you. Alora Bopray, USA Today, 28 Apr. 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 14 May. 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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