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Regular Intake of Nutrients Saves Vision

by Rathi Manohar on July 3, 2010 at 3:06 PM
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Regular Intake of Nutrients Saves Vision

A healthy diet helps in not only cutting down on health care costs but in preventing age-related macular degeneration (AMD) and other sight-robbing diseases.

Agricultural Research Service (ARS)-funded scientists at the Laboratory for Nutrition and Vision Research have found that a food's glycemic index is an indicator of how fast the carbohydrate it contains will spike blood sugar levels.

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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, researchers at Tufts University in Boston, Mass., the researchers analysed 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.
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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 AMD.

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 study was published in Ophthalmology.

Source: ANI
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