Hi I understand your concern. But suggesting supplements without knowing anything else other than a stubborn lower body fat is not advisable. If you are taking supplements it should be under any professional's guidance based on your need and discussing other health parameters as well. Overdose of zinc is also not advisable. So, for reducing weight, i shall suggest you to go with natural ways like exercise, proper diet regime and after that if any necessity of supplements there, doc or dietician should be guiding you.