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

Breast Cancer

A similar story emerges when you look at the research on this disease.

Some researchers think fiber might reduce the risk of breast cancer, perhaps by influencing the body’s hormone production. There were some studies to back this up, including one that found eating a lot of high-fiber foods, especially vegetables, might lower the risk of breast cancer slightly.

But other researchers found no such link, and again, as the number of studies grew, the theory became weaker.

Prostate Cancer

One theory is that fiber might prevent this disease by affecting hormone levels, like with breast cancer.

Other experts think fiber's effect on something called "insulin sensitivity" might play a role. Insulin is a hormone your body makes after you eat. It lets blood sugar enter your cells and be used for energy. When blood sugar levels rise, insulin levels tend to spike. But fiber, especially the soluble kind like oatmeal, can soften this effect by slowing the absorption of sugar in the bloodstream.

The few studies on fiber and prostate cancer are inconclusive, though.

Take-Home Advice

There's just not enough strong evidence to say for sure that fiber protects (or doesn't protect) against breast, prostate, or colon cancer.

But there's plenty of research on how it helps you in other ways. It's best known for keeping your bowel movements regular, and it can also stave off more serious conditions. That includes type 2 diabetes and heart disease.

Fiber helps with losing weight, too -- and staying at a healthy weight is one of the best things you can do to lower your risk for lots of diseases, including cancer.

WebMD Feature

Healthy Recipe Finder

Browse our collection of healthy, delicious recipes, from WebMD and Eating Well magazine.

Top searches: Chicken, Chocolate, Salad, Desserts, Soup

Heart Rate Calculator

Ensure you're exercising hard enough to get a good workout, but not strain your heart.

While you are exercising, you should count between...