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Diabetes Health Center

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White Rice Linked to Diabetes Risk

Study: Eating White Rice Regularly Raises Diabetes Risk
WebMD Health News
Reviewed by Laura J. Martin, MD

March 15, 2012 -- Eating white rice regularly, as is commonly done in many Asian countries, may increase risk for developing type 2 diabetes, a new study shows.

Researchers looked at data from four studies: two in Asian countries (China and Japan) and two in Western countries (the U.S. and Australia). All participants were diabetes-free when the studies began.

On average, people from Asian countries ate about four servings of white rice daily. Individuals in Western countries, however, ate less than five servings a week. The study found that the more servings of white rice a person eats per day, the greater their risk for developing type 2 diabetes, the form of diabetes most closely linked to obesity.

According to the new study, diabetes risk rises by about 10% with each increased serving per day of white rice.

The new findings appear in the journal BMJ.

The study was not designed to show how white rice may increase the risk for diabetes, but researcher Qi Sun, MD, has some theories on the matter. White rice ranks high on the glycemic index, which means it can cause a sudden spike in blood sugar levels. White rice is also low in fiber that can help lower the risk for developing diabetes, Sun says. He is an instructor in medicine at the Harvard School of Public Health in Boston.

It’s not just white rice, either. Other white, starchy carbohydrates, such as white bread, white pasta, and white potatoes, will likely have the same effect if eaten often enough, he says.

Swap White Rice for Brown Rice

Sun suggests choosing whole grains instead of white carbs. This is not to say that a person can never eat white rice. It is all about moderation: “Eating white rice one to two times per week is fine.”

Spyros Mezitis, MD, agrees that all white starchy foods increase the risk for diabetes when eaten in excess. He is an endocrinologist at Lenox Hill Hospital in New York City.

Anyone at risk for diabetes should focus on reducing the number of calories they eat, losing weight (if they are overweight or obese), and replacing white carbs with whole grain foods. “Always try to eat less and go for the whole grain instead of the white starch,” he says.

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