In my review of recent studies on Alzheimer's, I found plenty of promising news. A handful of studies show that your eating habits in middle age can have an effect on your Alzheimer's risk. Some of you may already be consuming the foods that researchers believe can ward off the disease, particularly antioxidant-rich fruits.
Fruit: The Proven Alzheimer's Foe
Alzheimer's is a degenerative disease of the brain. Many scientists believe that plaque build up causes nerve cell damage from oxidative stress. This leads to the decrease in cognitive function that characterizes Alzheimer's. Fruits contain protective antioxidants called polyphenols that protect the cells from oxidative stress.
A study in the Journal of Food Science showed how it works. Researchers treated neuronal cells with extracts from everyday fruits that many of us have in our kitchens, namely apples, bananas and oranges. Then they induced oxidative stress and tested the cells. The cells treated with apple extract were most protected, but bananas and oranges offered excellent benefits as well.
Ads by GoogleEating a varied selection of fresh
produce has long been believed to provide natural protection against
disease. Other fruits the researchers found to have high antioxidant
activity similar to apples are grapes, cherries and plums.
Juice Helps Too
If you are not already eating fresh fruit daily, I hope I've convinced you to start. On days when don't have the opportunity to munch on an apple or peel an orange, juice can provide benefits. A study showed that elderly people who drank fruit or vegetable juice three times per week reduced their risk of Alzheimer's compared to people who drank juice less than once per week.
Polyphenols that provide the protective effect in whole fruit are also present in all-natural juice. Whole fruits and vegetables are preferable to juice because they provide fiber and help fill you up. Whenever they are not available, however, juice is a good option.
Many of my patients have asked if supplements that contain antioxidants such as vitamins E, C and A, have the same effect as food. Research shows that supplements do not have similar protective effects against Alzheimer's. It is best to get the benefits of antioxidants from the fruits I mentioned or from fruit juice. I often say that prevention is the best medicine. If eating a diet filled with delicious fresh fruit and vegetables can actually protect us from a serious disease like Alzheimer's, I am all for it!
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