Dictionary.com
Thesaurus.com
Synonyms

dietetics

British  
/ ˌdaɪɪˈtɛtɪks /

noun

  1. (functioning as singular) the scientific study and regulation of food intake and preparation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Explanation

The science of human nutrition is known as dietetics. If you decide to study dietetics in college, you'll study nutrients and food, as well as anatomy, chemistry, genetics, and more. If someone wants to be a nutritionist or registered dietitian, their field of study will be dietetics. It's basically the science of studying nutrition and then applying those principles to specific patients, clients, or groups. With knowledge of dietetics, you might go into public health, become a doctor, or advise people how to lower their cholesterol or blood sugar by modifying their diets, for example.

Keep Reading on Vocabulary.com

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.

See Examples For:

The symposium included twelve specialists representing nutrition, food science, dietetics, nutrition metabolism and physiology, cardiovascular and cognitive health, gut health and microbiology, and both preclinical and clinical research models.

From Science Daily Jan. 27, 2026

In fact, I still have a box or two of these cereals squirreled away at my house, even though I'm well into adulthood, working as an assistant professor of nutrition and dietetics.

From Salon Jul. 23, 2024

Christensen and Erin Holt, who has a bachelor’s degree in nutrition and dietetics and hosts the Funk’tional Nutrition Podcast from New Hampshire, can help you sort facts from fads.

From Los Angeles Times Aug. 3, 2023

The following year, Mr Elias told Mold Crown Court Kaylea was discharged from a dietetics service because Lloyd-Jones did not make a new appointment.

From BBC Feb. 7, 2023

For instance, that worthy gentleman, among other idiosyncracies, was a follower of the so-called Dr. Sylvester Graham, an ex-Presbyterian clergyman who, in 1832, inaugurated, by a familiar course of lectures, a new system of dietetics.

From Sword and Pen Ventures and Adventures of Willard Glazier by John Algernon Owens

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training