Richard's Whole Foods  
10% Off Register online today and receive 10% off your next in-store purchase.
Your E-mail:     
Healthy Recipes Reference Library Store Specials About Us Friday, May 05, 2006
Search Site
Departments
News & Features
  
Sign In
My Account
Contact Us
Shopping Cart
Checkout
Help


 

Glycemic Index and Your Vision

Posted May 2, 2006

Scientists funded by the Agricultural Research Service reported this month that consuming a "high glycemic-index" diet over a long period of time is associated with a higher risk of developing the early stages of a major eye disease--age-related macular degeneration, or AMD.

The study was led by Chung-Jung Chiu and Allen Taylor at the Jean Mayer USDA Human Nutrition Research Center on Aging in Boston, Mass., and is part of the Nutrition and Vision Project, a substudy of the federally funded Nurses' Health Study.

A high glycemic-index diet is a diet high in the type of carbohydrates that are quickly digested and absorbed, resulting in a rapid rise in blood glucose levels. The macula is a yellow pigmented spot, one-eighth-inch wide, in the center of the retina toward the back of the eye. AMD is one of the leading causes of irreversible vision loss among those aged 40 or older in the United States.

Study participants were 526 women aged 53 to 73 years who did not have a history of age-related maculopathy, the early form of AMD. The scientists assessed the participants for macular disease and classified the results. They then compared the results with long-term dietary information that had been collected using questionnaires over a 10-year period prior to the macular disease assessment.

When ranked into three groups from highest to lowest in terms of dietary glycemic index, the participants who were ranked highest were well over two times more likely to have macular pigment abnormalities as those ranked lowest. An abnormal level of macular pigment is an early indicator of macular degeneration. The macula is responsible for the maximum ability to receive light and distinguish images.

Although the data do not establish a causal relationship, they do indicate a new direction for further studies that may help prevent or delay the onset of macular disease.

The study was published in the April issue of the American Journal of Clinical Nutrition.

ARS is the U.S. Department of Agriculture's chief scientific research agency.

Date: April 29, 2006

1994-2006 M2 Communications Ltd
 
Printable Version     E-mail a Friend
 
 Back
UPC/Product Name:
Brand:
Category:
You have 0 items in your
Shopping Cart.
Mediterranean Potato Salad
Because of the intense flavor of the dried tomato dressing, no salting i...
Richard's Whole Foods
Sarasota, FL 34240
More Info

Home | Store Locations | Buy Online | Store Specials | About Us | Delicious Living | Reference Library | News & Features | Health Tools | Treatment Options | Healthy Recipes | Ingredient Glossary | My Account | Contact Us | Help | Shopping Cart | Privacy Policy | Terms of Use |



Powered By Living Naturally