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The plural form of diet isdiets.
In this way, is diet countable or uncountable?
Noun[change] (countable & uncountable) Adiet is the food that an animal, person, or group usuallyeats. Several studies have suggested that high-fat diets candirectly increase the risk of this cancer. Studies confirm thatvegetarian is a healthful and balanceddiet.
Similarly, it is asked, what does the word diet really mean?
The word “diet” is a noun, andactually comes from an ancient Greek word meaning 'amode of living.' It refers to the overall sum of the food consumedby an organism or group. Even though the term has been co-opted bythe weight-loss industry, it has nothing to do with weightloss/gain.
The word diet used to mean the food and drinkthat we habitually consume did not appear in English until thethirteenth century, but it also had another sense, meaning“a way of life.” The Latin word diaeta came fromthese roots. This word described a dietaryregimen, as well.