Effectiveness of vitamin D, fish oil to study

Two dietary supplements - Vitamin D and fish oil - will soon be five years a review of the effectiveness in reducing the prices of several serious diseases. Given that almost all African-Americans lack vitamin D, the federal study will also examine whether complete, the gap between the disease of blacks and other ethnic groups.

Afro-Americans on charges much more diseases than white Americans with the same condition. The mortality rate for heart disease in African-American is a third higher than for white Americans, for example, while blacks' death for stroke by 50 per cent more deaths and diabetes is twice as high.

"The low-cost supplements have the potential to reduce the burden of chronic diseases," said Dr. JoAnn Manson, chief of preventive medicine at Brigham and Women's Hospital in Boston, which is on eof the leaders of the study. The 20 million study was commissioned by the National Institutes of Health.

"We are pleased the potential of vitamin D on reducing the health divide," Manson said. "But it is important to meet the clinical trials before recommendation complementary megadoses."

Three of the four American youth and adults are not vitamin D, and the statistics are worse for people with dark skin, UVB, vitamin D. According to a study in the March 23rd Issue of Archives of Internal Medicine, 90% Mexican-Americans and 97% of African Americans lack vitamin D.

In addition, because many people stay in the day and wear sunscreen if they go, vitamin D takes. From 1994 to 2004, the number of Americans optimal blood levels of vitamin D, experts from 30 nanograms per milliliter, from 45 percent to 23 percent. Although the use of sunscreen products in the incidence of skin cancer, sunscreen with a sun protection factor 15 lower vitamin D synthesis by 99%.

Researchers, this fall is the parameter of all 20,000 adult U.S. citizens, and participants do not need to leave. The study, which began in January 2010, is the largest yet to inform the evaluation of health effects of these benefits. Researchers from the inclusion of women aged 65 and older and men 60 years or older who have never had a myocardial infarction, stroke or a large cancer. A quarter of participants is black, one of the first studies on the health of the Confederation in a particular race. Blood levels of vitamin D is measured, and then the participants at random for vitamin D, fish oil, both nutrients or dummy pills. At the end of the process, blood is still being measured, with the onset of disease during the study period. Researchers are also examining whether the benefits of aid in the prevention of memory loss, depression, diabetes, osteoporosis and other conditions.

The dose of fish oil is about one gram, or as much as 10 times the average American home. In a report to the current structure of federal councils, the participants are also the 2000 international units of vitamin D. The government recommends 200 to 600 international units per day, depending on age and other factors. These guidelines are, however, criticized by many experts as too low, as they were produced years if more people enough vitamin D in the sun, and were first in line to improve bone health.

But to surprise many researchers in recent years, they found that most cells and tissues have receptors for vitamin D, in which nutrient plays an important role in gene expression, other vital functions. Vitamin D is now thought to trigger or aggravate many diseases, cardiovascular diseases and diabetes, multiple sclerosis and cancer of the breast, prostate and colon.

"Most importantly, she goes on a large number of participants," said Dr. David Feldman, a professor of medicine at Stanford University, said the new study. Feldman nutrients for more than two decades, and currently is a clinical study on breast cancer and vitamin D.

"But we must be careful not to pretend to enjoy and much to be disappointed if it does not meet all of its Hype," he says.

"It is important to be cautiously optimistic," said Manson, cited disappointment with other studies, such as vitamin E, vitamin C and beta-carotene.

"Let us not directly on the train to mega-doses of these, Denmark, before clinical trials to clarify their role."