11. Coconut Oil
For the past decade or so, this oil has been unpopular because of its high saturated fat content. But new research says this ingredient may be a boon to women trying to lose their belly fat. In another study, published in the European Journal of Clinical Nutrition, medium chain fatty acids, the type found in coconut oil, reduced body weight, body fat, waist circumference and visceral fat in women who had high triglycerides. Also, in a recent study out of Brazil, coconut oil eaters were shown to have a higher level of "good" HDL, which helps clear cholesterol deposits from arteries.