Getting enough of the good fats will help you lose fat, build muscle, and recover faster from your workouts. In addition, it has myriad health benefits, including being good for your heart. Good fats include: polyunsaturated (especially Omega-3's), such as those from fish and nuts, as well as monosaturated fats, such as those from peanut butter, olive oil, egg yolks, and fish oil. Bad fats include saturated fats from things such as animal and coconut fats. Then there is the worst kind of fa.