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Human food can be classified in various ways, either by related content or by how it is processed. The number and composition of food groups can vary. Most systems include four basic groups that describe their origin and relative nutritional function: Vegetables and Fruit, Cereals and Bread, Dairy, and Meat.
Functional food. A functional food is a food claimed to have an additional function (often one related to health promotion or disease prevention) by adding new ingredients or more of existing ingredients. [1] The term may also apply to traits purposely bred into existing edible plants, such as purple or gold potatoes having increased ...
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder ). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three ...
Nutritional psychiatrist Dr. Uma Naidoo has built a career around figuring out which foods improve brain function and positively influence the way we feel. She is the director of nutritional and ...
Human food. Human food is food which is fit for human consumption, and which humans willingly eat. Food is a basic necessity of life, and humans typically seek food out as an instinctual response to hunger; however, not all things that are edible constitute as human food. Display of various foods. Humans eat various substances for energy ...
Cereals. Dairy. Meat. sugar. The Food and Agriculture Organization of the United Nations [note 1] ( FAO) is a specialized agency of the United Nations that leads international efforts to defeat hunger and improve nutrition and food security. Its Latin motto, fiat panis, translates to "let there be bread".
The UK Food Standards Agency describes it as "the whole food industry – from farming and food production, packaging and distribution, to retail and catering". The Economic Research Service of the USDA uses the term food system to describe the same thing, stating: "The U.S. food system is a complex network of farmers and the industries that ...
The seven major classes of nutrients are carbohydrates, fats, fiber, minerals, proteins, vitamins, and water. [4] Nutrients can be grouped as either macronutrients or micronutrients (needed in small quantities). Carbohydrates, fats, and proteins are macronutrients, and provide energy. [4] Water and fiber are macronutrients, but do not provide ...