I'm 5'10 130ish but i've lost 20 pounds since the summer. I can't put on weight. My waist is size 28 and my figure is enviable by some females. I've tried supplements and they have worked but i'm now somewhat intolerant to milk, so that rules out my old stash. Is it something to do with my weird metabolism? I'm 23, Asian, everyone in my family is not overweight. My diet has a decent amount of carbs as we rotate western/eastern style meals on a daily basis. I can binge eat like a mad man and gain next to nothing. See nutrition specialist?