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dietitian

American  
[dahy-i-tish-uhn] / ˌdaɪ ɪˈtɪʃ ən /
Or dietician

noun

  1. a person who is an expert in nutrition or dietetics.


Etymology

Origin of dietitian

1840–50; diet 1 + -itian; see -ician

Explanation

A healthcare worker who's an expert on food and nutrition is a dietitian. In hospitals, it's a dietitian's job to develop healthful menus for patients. A dietitian's education includes learning in detail about the specific ways diet and nutrients affect human bodies. School districts, nursing homes, and hospitals all hire dietitians to plan balanced meals. In the case of a school, that might involve creative ways of making vegetables taste great. Anyone who's concerned about their diet can consult a dietitian for advice.

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Vocabulary lists containing dietitian

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Not necessarily, says Kezia Joy, a registered dietitian, nutritionist and medical adviser at Welzo, a healthcare platform.

From MarketWatch • Jan. 30, 2026

But Bini Suresh, a dietitian, who has spent 20 years working with obese and overweight patients, is exasperated by the idea.

From BBC • Jan. 4, 2026

Categorizing banana water as a sports drink is problematic, adds Vanessa King, a registered dietitian nutritionist specializing in supplements.

From Los Angeles Times • Dec. 15, 2025

If you do want a can of soup, “that’s ok” for most people, says Yasi Ansari, a registered dietitian in Los Angeles.

From The Wall Street Journal • Nov. 27, 2025

Three became teachers, one became a nurse, and one became a dietitian.

From "While the World Watched: A Birmingham Bombing Survivor Comes of Age during the Civil Rights Movement" by Carolyn Maull McKinstry