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We bring you some nutrition tips for healthy eyes based on an article by Evelyn Theiss, The Plain Dealer.

Good nutrition for eye health goes beyond carrots and their beta carotene, doctors now say, and the addition of some key nutrients can help avoid two leading causes of vision loss and blindness — age-related macular degeneration and cataracts — and aid conditions such as dry eyes.

The key nutrients include lutein (it helps with night vision), zeaxanthin (it protects the eyes from ultraviolet damage and prevents free-radical damage to the retina and lens), omega-3 oils (the DHA in them prevents retinal damage), zinc (good for preventing macular degeneration) and vitamin A (helps our night vision, but excessive doses can be toxic.)

Lutein, especially, is crucial when it comes to eye health as we age — it is present in the macula of the retina and helps us discern fine details. We are born with a certain amount, but since the body doesn’t produce it, the amount of lutein in your eyes depletes with age — so the only way to get it is by ingesting it.

Ideally, at least nine servings total of fruits and vegetables a day are recommended for your eyes and your general health, particularly green leafy vegetables.Yet the Centers for Disease Control and Prevention has said less than 15 percent of the population consumes even five servings of fruits and vegetables a day.

People who eat fish more than four times a week have a lower risk of macular degeneration than those who consume it less than three times a month. Omega-3 fatty acids are known to improve blood circulation to the eye.

Improving your nutrition is not necessarily easy. Take baby steps if you need to and consider taking supplements in case you decide to boost your totals using supplements.

The main nutrients shown to help you keep your eyes healthy as you age are those with the antioxidants lutein and zeaxanthin; essential fatty acids (omega-3s in particular); vitamins A, B, C and E; and zinc.

In the Age-Related Eye Disease Study, the National Eye Institute (of the National Institutes of Health) found that the combination of daily supplements to bring down the risk or progression of age-related macular degeneration is: 500 mg of vitamin C, 400 IU of vitamin E, 15 mg of beta carotene, 80 mg of zinc oxide and 2 mg of copper, also known as cupric acid. For the second ARED study now under way, the level of zinc has been cut back to 25 mg.

As always, it’s best to talk to your doctor for advice before starting a new regimen.

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Macular Degeneration

DENVER, Sept. 29 /PRNewswire/ — Researchers are seeing more benefits of omega-3 fatty acids (omega-3s), such as their ability to help prevent and slow age-related macular degeneration (AMD), an eye disease that is the leading cause of severe vision loss in older people. Fish consumption also seems to benefit seniors by thwarting dementia and the omega-3s in fish may improve cognition in adolescents and children. New research in these areas is described in the September 2009 PUFA Newsletter and Fats of Life e-newsletters.

In 10 years of follow-up, the Blue Mountains Eye Study in Australia reported that older adults who ate fish weekly and those with the highest intakes of omega-3s from all sources were significantly less likely to develop early AMD. In U.S. research, late stage AMD was delayed in people who had the highest intakes of seafood omega-3s plus a diet with a low glycemic index (minimal impact on blood sugar levels after consumption).

Eating fish regularly also seems to help prevent dementia. A large study in several low- and middle-income countries found that fish consumption was associated with a lower prevalence of dementia in adults aged 65 or older.

“Fish consumption appears to be protective in most, if not all, populations,” said Joyce Nettleton, D.Sc., editor of the PUFA Newsletter and Fats of Life. “This has clear implications for reducing the burden of mental illness in aging populations worldwide.”

Seafood omega-3s may benefit mental health and brain function in younger people, too, according to other research. In toddlers, those whose mothers had higher intakes of the omega-3 DHA had greater attention and were less easily distracted compared with toddlers of low DHA mothers. Older children who consumed a spread enriched with seafood omega-3s for six months had significantly improved verbal learning ability and memory. In Sweden, adolescent males who ate fish more than once a week scored significantly higher on intelligence assessments than males who ate fish less than once a week.

“These studies are among the first to document cognitive improvements with greater fish or omega-3 consumption in childhood and adolescence,” Nettleton noted. “It appears that omega-3s may benefit people of all ages.”

The quarterly PUFA Newsletter and Fats of Life, sponsored by DSM Nutritional Products, are accessible at www.fatsoflife.com.

Available Topic Expert(s): For information on the listed expert(s), click appropriate link.

Joyce A. Nettleton, D.Sc.

https://profnet.prnewswire.com/Subscriber/ExpertProfile.aspx?ei=76830

SOURCE Fats of Life