Diet
A diet consisted of one's nutritional intake. 

The Kobali diet lacked variety. Lyndsay Ballard recalled eating "the same grey paste for three years". () 

A change in diet could be prescribed by a physician to compensate for one's changing nutritional needs. In 2152, Jonathan Archer asked Doctor Phlox whether Porthos would require any special diet after receiving a chameleon's pituitary gland. () In 2266, Dr. Leonard McCoy changed James T. Kirk's diet card to  dietary salad following a two pound increase in the captain's weight. ()

In 2267, Kirk cited the Vaalians' simple diet as one of the factors that contributed to Gamma Trianguli VI's seeming status as a paradise. ()

In 2268, Montgomery Scott teased Pavel Chekov about his choice of drinks, asking him when he was "going to get off that milk diet". ()

Also that year, McCoy speculated that if Tomar continued to consume food at a rapid rate, he would need to go on a diet. ()

In 2372, Harry Kim compared the fluffy content of "A Briefing with Neelix" to a steady diet of dessert, saying one would eventually become tired of it and want meat and potatoes. ()

Different races had varying dietary requirements; some were biologically based, while others were cultural. In 2151, Dr. Phlox sent the Xyrillians 's dietary requirements so that he would not need to return to  to eat.() The Anticans preferred live animals freshly killed rather than preserved meat. In 2364, Natasha Yar discussed these requirements with William T. Riker when Antican delegates aboard the  declined their offer to preserve the livestock as meat. () The Kadi's dietary protocols prohibited highly flavored foods, something which Neelix reminded Ambassador Tomin of when he requested to try hasperat. () In 2374, Seven of Nine was given a list of dietary requirements by The Doctor ("two hundred fifty grams glycoproteins consisting of fifty three percent polypeptides and twenty six percent fibrous glycogen") and provided it to Neelix, but the Talaxian suggested a plate of his chadre'kab would be an acceptable substitute. ()

Types of diets 
 Carnivore
 Omnivore
 Vegetarian

See also 
Diet Coke
Diet Pepsi

External link 
 
Medicine
Biology