I know there are loads of WG/feedism mods for TS4, but I can’t find many for TS3. There was a thread discussing a WG virus, and I found a mod that stops weight loss while swimming, but not much else.
TS3 also has some weird weight gain/loss mechanics with your sims ‘genetic’ weight and overall no interactions outside of cosmetic ones when it comes to fat sims. Anything that covers those issues?