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

But Study Shows a Diet That Includes Olive Oil Can Cut Risk of Depression

Jan. 26, 2011 -- Eating too much trans fat, long known to raise heart disease risk, can also boost your risk of depression, new research suggests.

Eating a heart-healthy diet with olive oil can lower the risk of depression, says researcher Almudena Sanchez-Villegas, PhD, associate professor of preventive medicine at the University of Las Palmas de Gran Canaria in Las Palmas, Spain. The study included more than 12,000 people.

"The participants with an olive oil consumption higher than 20 grams a day (about 0.7 ounces) had a 30% lower risk of depression than those without consumption or with a very low consumption of olive oil," Sanchez-Villegas tells WebMD.

Those who took in the most trans fats, however, had up to a 48% increased risk of depression.

The unhealthy fats, says Sanchez-Villegas, are believed to lead to biological changes in the body linked with both heart disease and depression.

The study is published online in PLoS ONE.

Diet and Depression

The researchers evaluated 12,059 men and women, with an average age of 37. All were free of depression at the start of the study.

The men and women completed a food frequency questionnaire, describing their intakes of various types of fat. After a median follow-up of 6.1 years (half were followed longer, half less) 657 new cases of depression had been diagnosed.

The researchers then looked at the type and amount of fat intake to see if it played a role. It did.

Those who ate a high amount of trans fat -- the fat type found in fast food, industrially produced pastries, and certain whole milk products -- had an increased depression risk, while those who ate the most olive oil had a lower risk than those with a low consumption of olive oil or no olive oil.

The trans-fat intake in the participants was fairly low, Sanchez-Villegas says. Those in the highest intake group took in about 1.5 grams daily, and it was in that group the researchers found the 48% increased risk of depression.

In the study, both good fats and bad showed what scientists call a ''dose-response'' relationship. "More consumption, more protection [for olive oil] and more intake, more risk [for trans fatty acids],'' Sanchez-Villegas says.

Healthy Recipe Finder

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

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

Healthy Recipe Finder