I am 50 and have gain a lot of weight no matter what i do can't lose it?

Consider Help of MD: If you feel you have tried everything to lose weight and failed you should strongly consider seeing a doctor who specializes in bariatrics. You need to have a detailed medical history and physical exam and appropriate lab work. This lab work should include at least a cbc, cmp, lipids, tsh, & hgba1c. You need an individualized weight loss program developed for you. Diet and exercise are key.