Okay, so I have hemophilia. It's rather severe (my factor level is 3) so it presents a whole host of issues for exercise. I've kept myself is pretty good shape but I was hoping to lose ~10-15 pounds of fat and try and put on that much in muscle mass. The problem is that my doctors say that weight training is pretty much completely off limits. I'm pretty much limited to things like swimming and things that will keep my joint bleeding to a minimum. Spontaneous bleeding is par for the course with hemophilia at my level and so adding any extra damage to deteriorating joints is something that I need to avoid if I intend on still walking unassisted by the age of 30. I have a good diet, sort of, I eat totally organic and don't drink soda or anything too bad and I'm going to start trying to eat 3 meals a day and have a more balanced diet by introducing fruits into the mix. Another point of mention, I can do things like pushups, etc, but no extra weight and nothing that puts a strain on my joints particularly my knees where I already have moderate levels of arthritis. I'm not looking to get ripped or be a bodybuilder, I'm just looking to just take a bit of the fat off and maybe get a bit more muscle mass. My stats are: 6' 165 lbs 17% BF (I think) I don't know why but I have a very efficient body. I wouldn't say my metabolism is fast or slow, just efficient. I can eat tons of food every day over the course of a month and gain very little weight but, at the same time, if I were to eat very little I wouldn't lose all that much weight.