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

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

50+: Live Better, Longer

Font Size

Antioxidant Diet May Not Prevent Stroke, Dementia


A connection between vitamin C and vitamin E and reduced risk of stroke and dementia, respectively, has been found in a number of studies, but there are probably other antioxidants such as flavonoids found in foods including onions, peas and berries that could be important, Devore said.

For his part, Bowman thinks there could still be a connection between antioxidant capacity in the Dutch group and dementia and stroke risk, but the researchers are not seeing it because they used food questionnaires to evaluate antioxidant levels.

"An alternative approach would be to look at dietary signatures in the blood," Bowman said.

Measuring nutrient levels in the blood could not only give a direct indication of what is available to the brain, but it could help avoid the inaccuracies in what people say they eat and differences in how well individuals absorb what they eat, he added.

In a 2012 study, Bowman and his colleagues developed a test to measure the levels of a panel of nutrients in the blood and found a connection among elderly people between high levels of vitamins B, C, D, and E and improved cognitive function and larger brains.

Although this connection has to be studied more, Bowman is working to start a clinical trial to test whether increasing the level of vitamins C and E could indeed help protect the brain from diseases.

In the meantime, Bowman gives his patients the same advice: to cut out the junk, such as trans fats, and load up your diet with antioxidant-rich nutrients. He only recommends antioxidant supplements temporarily if someone has low blood levels.

More information

Find out more about antioxidants at the U.S. National Institutes of Health Office of Dietary Supplements.

1 | 2 | 3

Today on WebMD

Eating for a longer, healthier life.
woman biking
How to stay vital in your 50s and beyond.
womans finger tied with string
Learn how we remember, and why we forget.
man reviewing building plans
Do you know how to stay healthy as you age?
fast healthy snack ideas
how healthy is your mouth
dog on couch
doctor holding syringe
champagne toast
Two women wearing white leotards back to back
Man feeding woman
two senior women laughing