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The Amazing Nutrient that Lowers Your Blood Pressure

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Research has recently found that vitamin D has a protective effect against arterial stiffness and impaired blood vessel relaxation.

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Study participants with reduced levels of vitamin D had increased arterial stiffness and vascular function impairment. However, among those whose vitamin D levels were normalized over a six month period, vascular health improved and blood pressure measurements declined.

Science Newsline Reports:

“The results add to evidence that lack of vitamin D can lead to impaired vascular health, contributing to high blood pressure and the risk of cardiovascular disease.”

In related news, researchers have also found that high level of vitamin D could be protective against the development of early age-related macular degeneration (AMD), a leading cause of vision loss in adults.

In women younger than 75, those who had 25-hydroxyvitamin D concentrations lower than 38 nanomoles per liter were more likely to have age-related macular degeneration than women with concentrations greater than 38 nanomoles per liter.

Resources:
*Science Newsline April 4, 2011
*Archives of Ophthalmology April 2011; 129(4): 481-489
*MSNBC April 27, 2011
*Science Daily March 21, 2011
*Journal of General Internal Medicine April 21, 2011 [Epub ahead of print]
*Diabetes Care May 2011;34(5):1133-8
*Journal of General Internal Medicine March 15, 2011 [Epub ahead of print]

Posted By Dr. Mercola | April 30 2011

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Healthy Tips

Healthy Eating Provides Macular Degeneration Protective Effect

While 20/20 vision is a symbol of visual acuity, between now and the year 2020, more and more people will experience some extent of vision loss due to age-related macular degeneration and other sight-robbing diseases.
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Macular degeneration is a disease of the retina that affects the macula in the back of the eye. The macula is important for clear central vision, allowing an individual to see fine details. There are two types of macular degeneration, dry and wet. Dry macular degeneration is more common and is characterized by the thinning of the retina and drusen, small yellowish-white deposits that form within the retina. The dry form of macular degeneration is usually mild. Wet macular degeneration can happen more quickly and be more serious. It occurs when vessels under the retinal layer hemorrhage and cause the retinal cells to die creating blind spots or distorted vision in the central vision. The disease becomes increasingly common amongst people in each succeeding decade over 50.

Now, scientists at are finding that healthy eating can reduce not only health care costs, but also the decline of quality of life due to these diseases.

One study indicated that regularly consuming a combination of protective nutrients and a low-glycemic-index, or “slow carb,” diet provided an age-related macular degeneration protective effect. A food’s glycemic index is an indicator of how fast the carbohydrate it contains will spike blood sugar levels. The macula is a 3-millimeter-wide yellow spot near the center of the retina responsible for the central field of vision.

For the study, the researchers analyzed dietary intake and other data from more than 4,000 men and women, aged 55 to 80, who had participated in the long-term Age-Related Eye Disease Study, or AREDS. Led by Chung-Jung Chiu, the researchers ranked intake of each of several nutrients consumed during the AREDS study, then calculated a compound score to gauge their combined dietary effect on the risk of age-related macular degeneration. The scoring system allowed them to evaluate associations between individual—and combined—dietary nutrients.

The nutrients that were found to be most protective in combination with the low-glycemic-index diet were vitamins C and E, zinc, lutein, zeaxanthin, and the omega-3 fatty acids known as DHA and EPA. The 2009 study was published in Ophthalmology.

You may click to see:-
*Vitamin Therapy is Effective Method of Delaying Macular Degeneration
*Alternative Procedure for Myopia Could Be Safer Than Laser Eye Surgery
*Cells of the Retina Imaged for the First Time
*Antioxidant Supplement Could Help Slow Macular Degeneration

Source : Elements4Health

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