My husband weight problem

My husband has been so concerned with his weight lately. He keeps telling me he needs to lose some weight. Actually he's never weighed this much before. He feels he 20 pounds overweight. He has an appointment with his cardiologist today and he wants to ask his doctor if he can recommend some diet supplements to help him trim down his body weight. The problem is he has heart disease so I'm not sure that's going to be OK with his doctor. I'm thinking his doctor will want him to try the conventional approach to losing weight. You know, like eating more healthy foods and exercising regularly, things he doesn't do right now. Don't get me wrong, diet supplements are great for healthy people who don't have heart problems. We will see what the cardiologist has to say.