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Table 1 Classification of foods based on functions and nutrients [13]

From: A review on mechanisms and commercial aspects of food preservation and processing

  Sources
Functions
 Body building and repairing foods Milk, meat, fish, pulses, vegetables, and nuts
 Energy-giving foods Oil, butter, sugar, cereals, dry fruits, and starch foods
 Regulatory foods Water, raw vegetables, citrus fruits, and beverages
 Protective foods Milk, whole grain cereals, meat, vegetables, and fruits
Nutrients
 Carbohydrate-rich foods Rice, wheat, and starchy vegetables
 Protein-rich foods Milk, meat, fish, egg, and nuts
 Fat-rich foods Oils, butter, and egg yolk
 Vitamin- and mineral-rich foods Fruits and vegetables