(PhysOrg.com) -- Pistachio nuts, eaten as part of a healthy diet, can increase the levels of antioxidants in the blood of adults with high cholesterol, according to an international team of nutritional scientists including Penny Kris-Etherton, distinguished professor of nutrition at Penn State.

"Our previous study showed the benefits of pistachios in lowering lipids and lipoproteins, which are a risk factor for heart disease," said Kris-Etherton. "This new study shows an additional effect of pistachios so now there are multiple health benefits of eating ."

Pistachio nuts, eaten as part of a healthy diet, can increase the levels of antioxidants in the blood of adults with high cholesterol, according to Penny Kris-Etherton, Penn State distinguished professor of nutrition, along with an international team of nutritional scientists. Previous research has shown that pistachios also lower lipids and lipoproteins, which benefits heart health.

Other researchers in the study include Sheila West, associate professor of biobehavioral health, Penn State; Sarah Gebauer, U.S. Department of Agriculture, Beltsville, Md. and Colin D. Kay, lecturer, University of East Anglia. The researchers' work is published in the May 20 issue of the Journal of Nutrition.