News tagged with nutrients

Related topics: cells · protein · plants · blood vessels · cancer cells

Redefining pediatric malnutrition to improve treatment

In recent years, an effort has been underway to redefine malnutrition in pediatric patients to include both the acute clinical population and the more traditional ambulatory populations. Identifying and treating malnutrition ...

20 hours ago
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GM crops to fight spina bifida

Genetically modified crops are usually designed to have herbicide tolerance and insect resistance, but there are other applications of such engineered plants, such as the incorporation of genes for specific nutrients. Research ...

Apr 29, 2015
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Nutrient

A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment. They are used to build and repair tissues, regulate body processes and are converted to and used as energy. Methods for nutrient intake vary, with animals and protists consuming foods that are digested by an internal digestive system, but most plants ingest nutrients directly from the soil through their roots or from the atmosphere.

Organic nutrients include carbohydrates, fats, proteins (or their building blocks, amino acids), and vitamins. Inorganic chemical compounds such as dietary minerals, water, and oxygen may also be considered nutrients. A nutrient is said to be "essential" if it must be obtained from an external source, either because the organism cannot synthesize it or produces insufficient quantities. Nutrients needed in very small amounts are micronutrients and those that are needed in larger quantities are called macronutrients. The effects of nutrients are dose-dependent and shortages are called deficiencies.

See healthy diet for more information on the role of nutrients in human nutrition.

This text uses material from Wikipedia, licensed under CC BY-SA

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