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Nutrition is the biochemical/physiological process of using food and water to obtain nutrients that are metabolized for energy and for building body structures.
Nutrition is the biochemical and physiological process by which organisms use food and water to support life. Through intake, organisms obtain nutrients—both macronutrients (needed in larger amounts) and micronutrients (needed in trace amounts)—which are metabolized to generate energy and to build chemical structures. Because essential nutrients must be present within an appropriate range, both too little and too much can lead to malnutrition or nutrient-excess conditions. Nutritional science treats nutrition as a hard science and emphasizes how different organisms obtain and use nutrients. Organisms may acquire nutrients by consuming organic matter, consuming inorganic matter, absorbing light, or using combinations of these strategies. Nutrients are used in metabolic biochemical reactions such as energy-fueling reactions, biosynthesis of building blocks, polymerization into macromolecules, and assembly of cellular structures. All forms of life require carbon, energy, and water, but the specific nutrient needs and acquisition methods vary by organism type (e.g., animals, plants, fungi, protists, and prokaryotes).
Nutrition is the biochemical/physiological process of using food and water to obtain nutrients that are metabolized for energy and for building body structures.
Nutrients include macro- and micronutrients; essential nutrients cannot be synthesized by the body, so deficiency or excess can cause disease.
Organisms obtain nutrients in different ways—by consuming organic or inorganic matter, absorbing light, or both—and then use nutrients in biochemical reactions (fueling, biosynthesis, polymerization, and assembly).
The biochemical and physiological process by which an organism uses food and water to support life.
Primary nutrients required by an organism in relatively large amounts.
Nutrients required in trace amounts, including vitamins and minerals.
A nutrient the body cannot synthesize on its own and must obtain from the diet.
A condition that occurs when an organism does not have the nutrients it needs, including deficiency-related and excess-related outcomes.
The biochemical reactions that use absorbed nutrients to produce energy and to build cellular components.
An organism that produces its own nutrients from inorganic carbon sources such as carbon dioxide.
An organism that obtains nutrients by consuming the carbon of other organisms.
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