Food is a substance that is eaten by living things to obtain nutrients which are then processed into energy. Carbohydrates, fats, proteins, vitamins, and minerals are nutrients in food that are needed by the body. The liquid used for this purpose is often called a drink, but the word 'food' may also be used. Food consumed by humans is called food, while food consumed by animals is called feed.
The quality of a food can be judged by its energy and shelf life. Consumption of inappropriate or insufficient food will lead to malnutrition, which can lead to various health problems. In addition, several types of food can trigger food allergies when consumed by sensitive individuals. Food ingredients are processed into a variety of different dishes and are characteristic of a culture or population in a certain geographical location. Food is a subject that is studied in various sciences, such as food science, nutrition or nutrition, and gastronomy.