Fats are essential to a balanced diet and help bodies use certain vitamins as well as maintain healthy skin and hair. While watching the video, learners explore fat, which is certainly talked about a lot in terms of health. The narrator explains the atomic structure and make-up of saturated fats and unsaturated fats and then explains how these differences affect the body. He then discusses trans fats, polyunsaturated fats, monounsaturated fats, and omega-3 fatty acids and each of their roles in the health of the human body.