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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; -ician

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.

It added patients were referred to a dietitian and should consult Coeliac UK for further advice and support.

From BBC • Feb. 23, 2026

His mother, Laura, was a dietitian, and his father, Grady Wilson, was a tailor.

From Los Angeles Times • Jan. 31, 2026

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

From MarketWatch • Jan. 30, 2026

One remembers a dietitian telling her at age 7 to start “counting your Cheerios.”

From The Wall Street Journal • Nov. 28, 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