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In nutri­tion, diet is the sum of food con­sumed by a per­son or oth­er organ­ism. Dietary habits are the habit­u­al deci­sions an indi­vid­ual or cul­ture makes when choos­ing what foods to eat. The word diet often implies the use of spe­cif­ic intake of nutri­tion for health or weight-man­age­ment rea­sons (with the two often being relat­ed). Although humans are omni­vores, each cul­ture and each per­son holds some food pref­er­ences or some food taboos. This may be due to per­son­al tastes or eth­i­cal rea­sons. Indi­vid­ual dietary choic­es may be more or less healthy. Prop­er nutri­tion requires inges­tion and absorp­tion of vit­a­mins, min­er­als, and food ener­gy in the form of car­bo­hy­drates, pro­teins, and fats. Dietary habits and choic­es play a sig­nif­i­cant role in the qual­i­ty of life, health and longevi­ty. It can define cul­tures and play a role in religion.