My Sim was pretty thin coming out of CAS, but it seemed she gained weight rather rapidly. I bought her a treadmill and she uses it daily. Now it seems like my Sim has become extremely muscular, but ...
I agree, I just mentioned the weight loss potion as a temporary solution. I hope they fix the bug soon! As for my username, my favorite color is green and I've been using it for over a decade. I don't even watch Arrow, but given the character's love of the color green, the club name makes sense :).