Final answer:
EPA and DHA contribute to anti-obesity effects by increasing fatty acid oxidation and supporting insulin sensitivity, leading to lower body fat and improved glucose uptake.
Step-by-step explanation:
Two main mechanisms by which eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which are omega-3 fatty acids, exert anti-obesity and body composition effects are 1) they increase fatty acid oxidation and 2) they support insulin sensitivity. EPA and DHA help lower blood triglycerides, which are a form of stored fat, by increasing the rate at which the body converts these fats into energy, thus promoting a reduction in body fat stores. In addition, they enhance insulin sensitivity, which contributes to better glucose uptake by cells and reduces the risk of type 2 diabetes, a condition often associated with obesity.