Why are my Teens not gaining weight?

[roman2886]

All my Teen Sims in The Sims 3 are very skinny,The ones living in the second ford household are very skinny,and the ones living in The Lloyd household are also very skinny,They all have fast metabolisms will that change when they aged up Young Adults will they gain weight when they become Young Adults.

[Trip]

It's hard to make sims gain weight and even harder for them to keep it on. The only way I've ever gotten a sim to keep weight she gained was for her to eat full meals whilst having the Stuffed moodlet (not quick meals or produce) and she was also a pregnant adult at the time, which may have been why. But you can get temporary weight gain with that method anyways. Or drop LTHP on the Body Sculptor reward.

Anyways, teens are built skinny. They might look normal when they grow up.