Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started
My Medicine

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Alzheimer's Disease Health Center

Font Size

Diets High in Antioxidants May Reduce Risk of Alzheimer's Disease


Breteler, too, insists on caution. She says that she and others at the Erasmus Medical Center just "observed what appears to be a relationship," but can't really say that there is a cause and effect relationship.

They studied the dietary patterns of more than 5,000 people without dementia who volunteered to participate in the Rotterdam study, which looks at many aspects of aging. Breteler has been following this group of people since 1990 and, in that time, 146 people developed Alzheimer's disease and another 29 have dementia caused by stroke.

Breteler says the protective effect of antioxidants was "more pronounced among smokers and among those who are carriers of the Alzheimer's gene." She also says the antioxidants beta-carotene, vitamin C, and vitamin E appear to be equally protective but "flavonoids and/or fruit do not appear to be effective."

Grace J. Petot, MS, RD, assistant professor at Case Western Reserve University, tells WebMD that Breteler's results confirm some earlier studies that point to antioxidants as a way to lower risk of dementia. For example, she says that she followed a group of people who carry the Alzheimer's gene and found that "vegetables, especially dark leafy vegetables, appear to be protective."

Although Breteler was reluctant to say how many servings of dietary antioxidants are "high consumption," Petot says "adding about one and a half servings daily was protective in other studies." Petot says that "the current dietary recommendations are for five servings of fruits and vegetables -- and no one really eats five servings."

For more information from WebMD, visit our Disease and Conditions Alzheimer's page.

1 | 2

Today on WebMD

Remember your finger
When it’s more than just forgetfulness.
senior man with serious expression
Which kinds are treatable?
senior man
Common symptoms to look for.
mri scan of human brain
Can drinking red wine reverse the disease?
eating blueberries
Colored mri of brain
Close up of elderly couple holding hands
mature woman
Woman comforting ailing mother
Senior woman with serious expression