News tagged with nutrients
Don't judge the nutrient content of white vegetables by color alone
Potatoes and other white vegetables are just as important to a healthy diet as their colorful cousins in the produce aisle, according to the authors of a scientific supplement published yesterday in the peer-reviewed journal, ...
Other
May 15, 2013 |
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Mapping of cancer cell fuel pumps paves the way for new drugs
For the first time, researchers at Karolinska Institutet in Sweden have managed to obtain detailed images of the way in which the transport protein GLUT transports sugars into cells. Since tumours are highly dependent on ...
Cancer
Apr 28, 2013 |
4.7 / 5 (3) |
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Surprising culprits behind cell death from fat and sugar overload
Excess nutrients, such as fat and sugar, don't just pack on the pounds but can push some cells in the body over the brink. Unable to tolerate this "toxic" environment, these cells commit suicide.
Medical research
Jul 05, 2011 |
4.6 / 5 (9) |
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Discovery helps explain how children develop rare, fatal disease
One of 100,000 children is born with Menkes disease, a genetic disorder that affects the body's ability to properly absorb copper from food and leads to neurodegeneration, seizures, impaired movement, stunted ...
Medical research
Apr 30, 2013 |
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Eating lots of carbs, sugar may raise risk of cognitive impairment, study finds
People 70 and older who eat food high in carbohydrates have nearly four times the risk of developing mild cognitive impairment, and the danger also rises with a diet heavy in sugar, Mayo Clinic researchers have found. Those ...
Alzheimer's disease & dementia
Oct 16, 2012 |
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Diet, nutrient levels linked to cognitive ability, brain shrinkage
New research has found that elderly people with higher levels of several vitamins and omega 3 fatty acids in their blood had better performance on mental acuity tests and less of the brain shrinkage typical of Alzheimer's ...
Neuroscience
Dec 28, 2011 |
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Supplement mixture improves memory in mild Alzheimer's
(HealthDay) -- A supplement mixture (Souvenaid) containing dietary precursors and specific nutrients can improve memory in drug-naive patients with mild Alzheimer's disease (AD), according to a study published ...
Alzheimer's disease & dementia
Jul 12, 2012 |
4 / 5 (3) |
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Scientists identify unexpected player in intestinal immunity
With every meal, immune cells in the intestine stand like sentries at a citadel, turning away harmful bacteria but allowing vitamins and nutrients to pass.
Immunology
Mar 14, 2012 |
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Blood-brain barrier building blocks forged from human stem cells
The blood-brain barrier -- the filter that governs what can and cannot come into contact with the mammalian brain -- is a marvel of nature. It effectively separates circulating blood from the fluid that bathes the brain, ...
Medical research
Jun 24, 2012 |
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Cutting calories might help you live longer, but not without increased physical activity
Dietary restriction can slow age-related diseases and extend the lifespan of all species tested to date. Understanding this phenomenon might help people live longer, preferably without having to drastically limit calories. ...
Medical research
Jul 03, 2012 |
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Lifelong depression may increase risk of vascular dementia
Depressive symptoms that occur in both midlife and late life are associated with an increased risk of developing vascular dementia, while symptoms that occur in late life only are more likely to be early signs of Alzheimer's ...
Psychology & Psychiatry
May 07, 2012 |
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Researchers identify unusual 'altruistic' stem cell behavior with possible link to cancer
When most groups of mammalian cells are faced with a shortage of nutrients or oxygen, the phrase "every man for himself" is more apt than "all for one, one for all." Unlike colonies of bacteria, which often cooperate to thrive ...
Cancer
Jun 11, 2012 |
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Using planarian flatworms to understand organ regeneration
Researchers report in the journal Developmental Cell that they have identified genes that control growth and regeneration of the intestine in the freshwater planarian Schmidtea mediterranea.
Medical research
Oct 25, 2012 |
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Study identifies an expanded role for PKM2 in helping cancer cells survive
It has long been known that cancer cells use nutrients differently than normal cells. In recent years, the rapidly reemerging field of cancer metabolism has shed new light on the ways that cancers use glucose to grow and ...
Cancer
Nov 03, 2011 |
3 / 5 (1) |
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Scientists discover new way to target cancer
Scientists have discovered a new way to target cancer through manipulating a master switch responsible for cancer cell growth.
Cancer
Dec 12, 2011 |
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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.
