Alzheimers disease is a degenerative affliction that is always fatal, but new research suggests a Mediterranean diet may help people with Alzheimers disease live longer than patients who eat a more traditional Western diet.
The study is published in the September 11, 2007, issue of Neurology, the medical journal of the American Academy of Neurology.
The study followed 192 people with Alzheimers disease in New York for an average of four and a half years. During that time, 85 of the people died. Researchers found that those who most closely followed a Mediterranean diet were 76 percent less likely to die during the study period than those who followed the diet the least.
The more closely people followed the Mediterranean diet, the more they reduced their mortality, said study author Dr. Nikos Scarmeas, of Columbia University Medical Center in New York, and member of the American Academy of Neurology.
For example, Alzheimers patients who adhered to the diet to a moderate degree lived an average 1.3 years longer than those people who least adhered to the diet. And those Alzheimers patients who followed the diet very religiously lived an average four years longer.
Previous research by Scarmeas and his colleagues demonstrated that healthy people who eat a Mediterranean diet lower their risk of developing Alzheimers disease.
Studies have also shown that healthy people who follow a Mediterranean diet live longer than those who eat a more traditional Western diet, higher in saturated fat and meats and lower in fruits and vegetables.
New benefits of this diet keep coming out, said Scarmeas. We need to do more research to determine whether eating a Mediterranean diet also helps Alzheimers patients have slower rates of cognitive decline, maintain their daily living skills, and have a better quality of life.
The Mediterranean diet includes a high intake of vegetables, legumes, fruits, cereals, fish, monounsaturated fatty acids; a low intake of saturated fatty acids, dairy products, meat and poultry; and a mild to moderate amount of alcohol.
The study was supported by grants from the National Institute on Aging and the Taub Institute for Research on Alzheimers Disease and the Aging Brain at Columbia University.
