Posts Tagged Vitamin D 5000IU
by: Elizabeth Renter
August 7, 2012
Scientists have found a promising link between vitamin D and breast cancer, with the vitamin shown to reduce breast cancer risk. However, they say their findings only apply to vitamin D in supplement form, according to Reuters.
Link Shown Between Vitamin D and Breast Cancer Risk Reduction
Researchers found that women who consumed vitamin D in a pill had a 24 percent lower risk of developing breast cancer. But those who got their vitamin D in their food didn’t see the same results. While they don’t say why they think this is, it could be because those using supplements are simply getting more of the vitamin on a daily basis.
The study, published in the American Journal of Clinical Nutrition, looked at 3,101 breast cancer patients and 3,471 health women, analyzing their diet and supplementation habits. There was no link established between dietary vitamin D consumption (or calcium consumption) and breast cancer. The link was only obvious in women taking more than 400 IU (international units) of vitamin D every day.
The researchers say more work is needed to determine exactly how much vitamin D is needed and to determine how it works. However, we do know that breast tissue cells have receptors for vitamin D, “raising the possibility that the nutrient could help regulate the division and proliferation of these cells.” And while the researchers don’t draw a connection between vitamin D and breast cancer when the vitamin comes from food sources, including the vitamin in a diet for breast cancer patients via foods naturally rich in vitamin D in addition to supplementation will only boost prevention.
Interestingly, the research gives no attention to getting vitamin D from the sun. It’s estimated that the body of the average light-skinned person creates about 20,000 IU of vitamin D3 (the most concentrated form) after one 30-minute, total body exposure to the summer sun at noon. In a darker skin person, the amount of D3 produced is about 10,000 IU.
You don’t need to sunbathe for hours to accumulate vitamin D, but getting outside for some sunshine during the day will increase the body’s natural creation of vitamin D, providing a wealth of vitamin D health benefits that could even reduce your risk of cancer.
Wednesday, July 11, 2012
By: Ethan A. Huff
[NaturalNews] There is no longer any doubt that regular, unfiltered sunlight exposure, which helps promote and maintain optimal blood levels of vitamin D, plays a critical role in health promotion and disease prevention. And a recent study published in the Journal of Gerontology: Medical Science further confirms this, having found that inadequate blood levels of vitamin D can lead to decreased mobility and even disablement, particularly among the elderly.
Based on data collected from the comprehensive Health, Aging, and Body Composition Study, also known as Health ABC, the new study establishes a clear connection between vitamin D levels and overall mobility and bodily function. Compiled by researchers from the Wake Forest School of Medicine in North Carolina, the paper highlights how vitamin D levels directly affect an individual’s ability to perform everyday tasks like walking, climbing stairs, cycling, and engaging in various other forms of moderate exercise.
More than 2,000 individuals of both Caucasian and African-American backgrounds, and with an average age of around 75-years-old, participated in the study. Researchers measured the participants’ blood serum levels of 25-hydroxyvitamin D (calcidiol), a pre-hormone associated with vitamin D levels in the body, at the beginning of the study and at six-month intervals for six years, and compared these levels to overall mobility rates among the participants.
At the onset of the study, nearly 30 percent of the participants had blood levels of 25(OH)D less than 20 nanograms per milliliter (ng/mL), while more than 36 percent had levels between 20 and 30 ng/mL. Only 35 percent of the group had 25(OH)D levels of 30 ng/mL, which is largely considered to be the cutoff point for determining vitamin D deficiency.
Upon evaluation, those with 25(OH)D levels below 30 ng/mL were found to be 30 percent more likely to develop mobility problems than those with higher levels, while those with 25(OH)D levels below 20 ng/mL, which is considered to be grossly deficient, were about 100 percent more likely to develop disability compared to those with higher levels.
“About one-third of older adults have low vitamin D levels,” said Denise Houston, Ph.D., R.D., a nutrition epidemiologist at the Wake Forest Baptist Department of Geriatrics and Gerontology, concerning the study. “It’s difficult to get enough vitamin D through diet alone, and older adults, who may not spend much time outdoors may need to take a vitamin D supplement.”
Vitamin D deficiency even more prevalent than study shows
Though the findings of the study indicate that only about a third of elderly adults have vitamin D levels above what is considered to be deficient, the Vitamin D Council says the true cutoff point for vitamin D deficiency is really about 40 ng/mL rather than 30 ng/mL — 50 ng/mL, in fact, is a more realistic cutoff point for vitamin D deficiency.
With this in mind, far more than 60 percent of the elderly are vitamin D deficient, and likely suffering from needless health and mobility issues as a result. According to the Vitamin D Council, upwards of 90 percent of humanity is vitamin D deficient.
To learn more about vitamin D, visit: http://www.vitamindcouncil.org/
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