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Latest Vitamin A Stories

2011-08-26 11:04:49

Children in low and middle income countries should be given vitamin A supplements to prevent death and illness, concludes a study published on bmj.com today. The researchers argue that the effectiveness of vitamin A supplementation is now so well-established that further trials would be unethical, and they urge policymakers to provide supplements for all children at risk of deficiency. Vitamin A is an essential nutrient that must be obtained through diet. Vitamin A deficiency in...

2011-08-11 22:04:52

New study finds low vitamin D levels despite wide-spread use of supplements Pregnant women taking prenatal supplements may not be getting enough vitamin D, shows a new Vancouver-based study led by the Child & Family Research Institute at BC Children's Hospital that was published today in the Canadian Journal of Public Health. The study found that while almost 80 per cent of pregnant women reported taking supplements containing vitamin D, many were vitamin D insufficient. Insufficient...

2011-07-27 06:40:00

ORANGE, Calif., July 27, 2011 /PRNewswire/ -- A magnesium deficiency reduces the absorption and metabolism of calcium and prevents the proper amount of calcium being directed toward building stronger bones. According to Dr. Carolyn Dean, MD, ND, magnesium expert and Medical Director of the nonprofit Nutritional Magnesium Association (http://www.nutritionalmagnesium.org), the effectiveness and benefits of calcium with respect to bone health and the prevention of osteoporosis are greatly...

2011-07-26 07:00:00

MILFORD, Conn., July 26, 2011 /PRNewswire/ -- In addition to its many healthier offerings, the SUBWAY® restaurant chain has now added calcium and vitamin D fortified bread to its menu, announced Mark Christiano, the SUBWAY® brand's Global Baking Specialist. (Photo: http://photos.prnewswire.com/prnh/20110726/NY41279 ) Now, each 6-inch serving of bread in the 24,000-plus U.S. restaurants provides 30 percent of the daily recommended value of calcium and...

2011-06-28 20:56:05

Use of vitamin D supplements during pregnancy has long been a matter of concern but now researchers writing in the Journal of Bone and Mineral Research report that even a high supplementation amount in healthy pregnant women was safe and effective in raising circulating vitamin D to a level thought by some to be optimal. The study also found no adverse effects of vitamin D supplementation, even at the highest amount, in women or their newborns. The research team, led by Dr. Bruce Hollis from...

2011-06-23 13:03:38

Vitamin A deficiency does not increase the risk of asthma, according to new research published online in the European Respiratory Journal. In developing countries, vitamin A deficiency is particularly common and previous research has shown that it harms the development of the lungs. This study aimed to assess whether vitamin A deficiency influences the development of asthma later in life. The research, which was carried out by scientists at Johns Hopkins University in the USA and Nepalese...

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2011-06-06 09:45:00

Retinoic acid receptor antagonist interferes with sperm production Researchers at Columbia University Medical Center are honing in on the development of what may be the first non-steroidal, oral contraceptive for men. Tests of low doses of a compound that interferes with retinoic acid receptors (RARs), whose ligands are metabolites of dietary vitamin A, showed that it caused sterility in male mice. Earlier results of the experiments using this RAR antagonist were published in the June 1st...


Latest Vitamin A Reference Libraries

Golden Rice
2013-10-02 14:11:48

Golden Rice is a variety of Oryza sativa rice produced  through genetic engineering to biosynthesize beta-carotene, a precursor of vitamin A, in the edible parts of the rice. The research was conducted with the goal of producing a fortified food to be grown and consumed in areas with a shortage of dietary vitamin A, a deficiency which is estimated to kill 670,000 children under five years old each year. Golden rice is different from its parental strain by the addition of three...

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Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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