honestly bro..cardio..i've been there..if good willing..u keep ur food intake as clean as possible, u'll do a lot of progress..ouh, try and find out out at utube what others ways which u can elimante man boobs..they might provide u info such as diets and stuffs..most of us ere aren't specialist, but hey, we can share our experience and u can try on em....

all d best bro!