Then you eat more, and more of the correct food.
I am about 1.68 meters tall and was eating a lot of take out/high sugar foods. I went from 60 kgs to 66 kgs at my highest, averaged about 64/65kgs, but a lot of it was around the midsection (skinny fat). Got my blood sugar levels tested over the holidays and was in the pre-diabetic range so cut back on the take-out, went moderate/low carb and removed all food with processed sugar in it during the week (almost impossible to not have sugar on weekends when you go out to eat). Got a glucose meter and tested my blood sugar regularly and it returned to normal levels. I dropped 4/5 kgs and now however around 60kgs. Which brings me to my next problem.
I work out regularly (3 - 5 times a week), walk a lot (about 8.4 kms a day, Monday - Friday) and look pretty good with my shirt off. However, losing that 5 kgs of fat definitely made me look smaller with my shirt on (I don't want to be huge, but I do want to have more physical presence). So now I am trying to eat enough healthy stuff to gain (mostly) muscle, and it's a huge pain in the butt. I simply do not have the time/appetite. I already take supplements like Omega 3/6s, Zinc, Vitamin D (on the days I don't go outside much), and am drinking Whey Protein shakes (I can only use 2 out of the 3 scoops because if I go for the full three scoops I get stomach cramps and really bad indigestion).
What is the general opinion of BCAAs? I eat a fair amount of meat (two chicken thighs at lunch, and steak or chicken with supper), but I have heard there are quite a few other positive effects when it comes to muscle growth.