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October 2006 Issue

Tammy Ward and Kelly Guthrie, registered dieticians, work closely with the cancer care team and the patient as part of the treatment plan to provide individualized education about good nutrition, adequate protein intake and the increase of fruits and vegetables.
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Start Now to Prevent Macular Degeneration

Published October 2006

A problem most people should worry about as they or their loved ones get older is age-related macular degeneration (AMD), the leading cause of irreversible blindness.

But according to UC physician Manoj Singh, MD, taking specific antioxidant vitamins or mineral supplements or eating enough fruits, vegetables, nuts and fish can prevent or slow its development.

Singh, assistant professor of family medicine, says AMD affects more than 10 percent of people over 80. The condition causes a deterioration of the macula, the part of the retina in the back of the eye that allows you to see fine details. In macular degeneration, central vision is affected while peripheral vision remains intact.

“The cause of AMD is unknown and may simply be part of the body’s natural aging process,” Singh says.

Macular degeneration can cause different symptoms in different people. Sometimes only one eye loses vision, while the other eye is unaffected for many years. But when both eyes are affected, the loss of central vision may be noticed more quickly.AMD treatment may involve taking specific nutritional supplements, certain medications or possibly undergoing laser surgery.

An article in the December 2005 edition of the Journal of the American Medical Association reported that a diet high in betacarotene, vitamins C and E and zinc was associated with a lower risk of AMD. Sources of these vitamins and minerals include:

• Beta-carotene: carrots, sweet potatoes, kale, mangoes, turnips, papayas, apricots, cantaloupes, bell peppers, milk and eggs
• Vitamin C: oranges, broccoli, bell peppers, strawberries, cantaloupes, mangoes, tangerines, potatoes (with the skin), spinach and papayas
• Vitamin E: almonds, olive oil, soy, mangoes, peanuts and sweet potatoes
• Zinc: meat (including fish), dairy products and grains

Singh recommends that you review your diet to ensure it includes an adequate amount and variety of the foods listed. Or ask your doctor to advise which supplements you should take, how often and in what quantity.

Singh cautions, however, “Smokers should be careful about taking beta-carotene, since there have been reports of a higher risk of lung cancer in this group.”

For more information, call (513) 475-8264.

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