Washington: Canola oil and high-oleic canola oils can lower abdominal fat when used in place of other selected oil blends, a new study suggest.
The researchers also found that consuming certain vegetable oils may be a simple way of reducing the risk of metabolic syndrome, which affects about one in three US adults and one in five Canadian adults.
"The monounsaturated fats in these vegetable oils appear to reduce abdominal fat, which in turn may decrease metabolic syndrome risk factors," Penny Kris-Etherton, Distinguished Professor of Nutrition, Penn State said.
In the randomized, controlled trial, 121 participants at risk for metabolic syndrome received a daily smoothie containing 40 grams (1.42 ounces) of one of five oils as part of a weight maintenance, heart-healthy, 2000-calorie per day diet.
Members of the group had five risk factors characterized by increased belly fat, low "good" hdl cholesterol and above average blood sugar, blood pressure and triglycerides that increase the risk of heart disease, stroke and type 2 diabetes.
The researchers repeated this process for the remaining four oils.
Results showed that those who consumed canola or high-oleic canola oils on a daily basis for four weeks lowered their belly fat by 1.6 percent compared to those who consumed a flax/safflower oil blend.
Abdominal fat was unchanged by the other two oils, which included a corn/safflower oil blend and high-oleic canola oil enriched with an algal source of the omega-3 DHA.
Both the flax/safflower and corn/safflower oil blends were low in monounsaturated fat.