News tagged with nutrients

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

Commercial baby foods don't meet infants' weaning needs

UK commercial baby foods don't meet infants' dietary weaning needs, because they are predominantly sweet foods that provide little extra nutritional goodness over breast milk, indicates research published online in Archives ...

Sep 09, 2013
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Improved effectiveness of chemotherapy for cancer

Cancer cells often develop defence mechanisms which enable them to survive chemotherapy. A group of researchers from the Institutes of Pharmacology and Pathology in Bern present new solutions for preventing the development ...

Aug 15, 2013
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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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