Before taking this, when working hard out in the yard all day, I would notice that, for the next 2 or 3 days, I have sore muscles. But, since I've been taking this Advanced Amino, I no longer experience that soreness. It feels like my muscles recover more promptly. And, if you chew the tablets in the context of a chocolate beverage, it gives the chocolate a richer, darker taste, which is just a nice little extra.