I have my teen sims go to the gym quite often, since they tend to age up into quite chubby figures. I'm wondering--- is weight genetic in the Sims 4??? I guess it would make sense, but the thing is, my teens' parents are pretty fit too. ?
On another note, another way to lose the weight is the Slim potion in the rewards store. Except it's not as fun when you don't work for it, and you don't get to experience how quickly you can become friends with gym trainers when you're being mentored. Like some of my sims' best friends are all gym trainers ?