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Nutrition is the process by which organisms use food and water to support life through metabolism of nutrients.
Nutrition is the biochemical and physiological process by which an organism uses food and water to support life. By taking in substances called nutrients (which include macronutrients and micronutrients), organisms metabolize them to generate energy and to build chemical structures needed for survival, growth, and reproduction. If an essential nutrient is consumed in too little or too much amounts, malnutrition or nutrient-excess conditions can result. The purpose of nutrition is therefore to ensure the body receives the right nutrients in the right amounts and uses them effectively in metabolic reactions. Different organisms require different nutrients and obtain them in different ways: animals typically get nutrients by consuming other organisms, plants acquire nutrients from soil and the atmosphere, fungi absorb nutrients by breaking down surrounding matter through enzymes and absorbing products via mycelium, and many microorganisms obtain nutrients through varied strategies such as photosynthesis, chemosynthesis, or predation. Nutritional science studies these processes, with a strong emphasis on human nutrition due to its importance for health.
Nutrition is the process by which organisms use food and water to support life through metabolism of nutrients.
Nutrients can be macro- or micro- and must be consumed in appropriate amounts; both deficiency and excess can cause health problems.
Organisms differ in nutrient needs and acquisition methods (e.g., animals consume other organisms, plants absorb from soil/air, fungi absorb after extracellular digestion, and microbes use diverse metabolic strategies).
Nutritional science focuses on how nutrients are studied and applied, especially for human health.
The biochemical and physiological process by which an organism uses food and water to support its life.
Substances that provide energy and physical components needed for an organism to survive, grow, and reproduce.
Primary nutrients required in larger amounts, including carbohydrates, proteins, and fats (lipids).
Nutrients required in trace amounts, including vitamins and minerals.
Health problems that occur when an organism does not get the nutrients it needs, either from deficiency or imbalance.
The sum of foods an organism eats.
A biogeochemical cycle in which inorganic matter moves through soil, organisms, air, or water and is exchanged in organic matter.
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