"ArcherDK;c-17853705" wrote:
The secret is actually very simple - eating more than you need to contributes to sim getting fat. In game it is represented by their hunger meter. Once this meter is full, Sim will start gaining weight form any food they eat. Consider food a simple sustenance and eat only as much as you need and this probelm alleviates itself VERY noticeably. This is also why vampires don't really get fat - they don't drink more than they need to.
I always stoped them from eating just before the hunger bar was full.