News tagged with nutrient
Are European kids getting enough vitamin D? Winter weather reopens the debate
The cold snap has well and truly set in across much of Europe, and as temperatures fall, watching our health becomes increasingly more crucial. Keeping our vitamin D levels up during the winter months has long been lauded ...
Feb 06, 2012 |
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Tree rings may underestimate climate response to volcanic eruptions: study
Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even absent growing seasons, ...
Space & Earth / Earth Sciences
Feb 05, 2012 |
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Bacterial plasmids -- the freeloading and the heavy-lifters -- balance the high price of disease
Studying self-replicating genetic units, called plasmids, found in one of the world's widest-ranging pathogenic soil bacteria -- the crown-gall-disease-causing microorganism Agrobacterium tumefaciens -- Ind ...
Feb 01, 2012 |
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Moonlighting enzyme works double shift 24/7
A team of researchers led by Michigan State University has discovered an overachieving plant enzyme that works both the day and night shifts.
Jan 31, 2012 |
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A glass of milk a day could benefit your brain
Pouring at least one glass of milk each day could not only boost your intake of much-needed key nutrients, but it could also positively impact your brain and mental performance, according to a recent study in the International Da ...
Jan 30, 2012 |
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Research on vitamins could lead to the design of novel drugs to combat malaria
New research by scientists at the University of Southampton could lead to the design of more effective drugs to combat malaria.
Jan 27, 2012 |
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Restored wetlands rarely equal condition of original wetlands
Wetland restoration is a billion-dollar-a-year industry in the United States that aims to create ecosystems similar to those that disappeared over the past century. But a new analysis of restoration projects ...
Jan 24, 2012 |
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Fungi-filled forests are critical for endangered orchids
When it comes to conserving the world's orchids, not all forests are equal. In a paper to be published Jan. 25 in the journal Molecular Ecology, Smithsonian ecologists revealed that an orchid's fate hinges ...
Jan 24, 2012 |
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Hearty bacteria help make case for life in the extreme
(PhysOrg.com) -- The bottom of a glacier is not the most hospitable place on Earth, but at least two types of bacteria happily live there, according to researchers.
Jan 19, 2012 |
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Essential protein for the formation of new blood vessels identified
New research explains how cells regulate their bonds during the development of new blood vessels. For the first time, the role of the protein Raf-1 in determining the strength of the bond between cells has ...
Jan 17, 2012 |
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Nutrient data in time for the new year
Two timely nutrient data sets provided by U.S. Department of Agriculture (USDA) scientists are being used by the beef and pork industries to provide new Nutrition Facts labels for their products. Federal rules ...
Jan 16, 2012 |
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Acid rain poses a previously unrecognized threat to Great Lakes sugar maples
(PhysOrg.com) -- The number of sugar maples in Upper Great Lakes forests is likely to decline in coming decades, according to University of Michigan ecologists and their colleagues, due to a previously unrecognized ...
Jan 16, 2012 |
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Team finds natural reasons behind nitrogen-rich forests
(PhysOrg.com) -- Many tropical forests are extremely rich in nitrogen even when there are no farms or industries nearby, says Montana State University researcher Jack Brookshire.
Space & Earth / Earth Sciences
Jan 16, 2012 |
4.8 / 5 (6) |
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Diverse ecosystems are crucial climate change buffer
Preserving diverse plant life will be crucial to buffer the negative effects of climate change and desertification in in the world's drylands, according to a new landmark study.
Jan 12, 2012 |
4.3 / 5 (6) |
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Grain crops with lower carotene levels are less affected by parasitic plants
Grain crops that produce less carotene can produce more food, especially in Africa, as they are less affected by parasitic plants. This is the result of research with which Muhammad Jamil hopes to obtain his ...
Jan 12, 2012 |
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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.
For more information about Nutrient, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
