Answer to Question #62638 in Human Anatomy and Physiology for Em
How does a good metabolism tie to being fat?
Good metabolism itself is not a guarantee of the absence of obesity. If you have some bad habits like smoking or eating a lot of cakes, especially in the evening, then your good metabolism will be slowed or overwhelmed by incoming carbohydrates. And if it is not able to process all of them, they will be stored in your body in a form of excessive fat.