This bug was fixed in Patch 1.15.55
During each meal the Sims do a too spicy animation all the time although the food is not really spicy.
A small bug in a line of code that has a big effect on the game.
Ignore the animation or eat ice cream only. They don’t seem affected.
Mods that solve the issue
- Normal Eating (1.14 Spicy Food Fix) by plasticbox