Kids, Colds, and Vitamin D

Vitamin D deficiency is common in Mongolian children. This is partly because of long, cold winters, which limit exposure to the sun for many months of the year, the lack of food fortification, and the limited availability of supplements. Researchers in the United States have found that Mongolian children who drank Vitamin D-fortified milk experienced…

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Double Benefit from Being Outdoors

Regular exercise, both moderate and vigorous, contributes to healthy hearts. Harvard researchers have found those who do vigorous exercise for three or more hours per week reduce their heart attack risk by 22%. This study also suggests it may be due in part to exposure to sunshine and the resulting increased vitamin D levels.PositiveTip: Enjoy the…

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High Calcium Intake May Actually Increase Risk of Hip Fractures

A newly published Swedish study of over 61,000 women who were followed for more than 19 years provides the strongest evidence to date that high calcium intake is not beneficial for preventing bone fractures. The exceptions are women with very low amounts of calcium and vitamin D in their diet. Women in the top 25 percent of…

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Most Americans Okay in Vitamin D

More than 2/3 of the U.S. population had sufficient vitamin D, as defined by the 2010 Institute of Medicine's report (serum 25-hydroxyvitamin D [25OHD] between 50 and 125 nmol/L). About 25% were at risk of inadequacy (30-49 nmol/L). Interestingly, the National Center for Health Statistics found that many non-white groups have better skeletal status than…

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No Need for Megadoses of Vitamin D

After reviewing more than 1,000 studies and consulting numerous nutrition researchers and experts, the Institute of Medicine has concluded that most Americans do not need megadoses of vitamin D or calcium to maintain healthy bones. Furthermore, they stated that there is no strong evidence to support the idea that vitamin D causes many of the…

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What is Your Vitamin D Status?

A study in Sweden has examined Vitamin D levels in older men for 11 years. Using gold-standard methods, these researchers found that when Vitamin D levels (25[OH]D) were below 16 ng/ml the risk of fracture rose. However, only 5% of men fell into this category, and only 3% of all fractures were attributable to low…

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Got Sunshine Phobia?

“Avoid sunlight, it will give you skin cancer.”You've probably heard people say it, but it isn't always good advice. Sunlight is our most important source of vitamin D. The current epidemic of Vitamin D deficiency is largely a result of avoiding healthy levels of sun exposure.The amount of sunshine time we need in order to…

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Vitamin D Makes You Fall Down

Lots of people are urged by their doctors to take Vitamin D supplements to preserve strong bones. But a study published today in the Journal of the American Medical Association reports a surprising complication from vitamin D supplements.

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Vitamin D May be Really Good for the Grey Matter!

Evidence is accumulating that Vitamin D deficiency may be linked to adverse cognitive performance. Research just released by University of Manchester (England) investigators has found that men with higher blood levels of Vitamin D performed consistently better in simple and sensitive neuropsychological tests that assess a person's attention and speed of information processing.

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