While general supplementation with BCAAs is unnecessary when you’re eating properly, they do have a good use: pre-workout supplementation when you’re training in a fasted state. (Fasted training is a particularly effective way to accelerate fat loss, and to target stubborn fat, particularly.)
I’ve cut both with and without fasted training, and can say with absolute confidence that it speeds up the process.
I recommend this BCAA product because it’s naturally sweetened and tastes pretty good. Nothing fancy needed or provided.