Give Cavemen a benefit to how nutrition works. Since they are used to a “feast or famine” lifestyle, they should never choke on food, and just stop eating at their upper limit. Possibly, the upper limit is even increased so if they eat a lot, they can go for longer without getting hungry (or, conversely, slow the nutrition clock when they are hungry so they take longer to get to Weak/Fainting status). Also, they should never get “Blecch!” rotten food effects since they are adapted to eat food that isn’t in the best condition.

You can guarantee you won’t choke on a comestible by greasing it beforehand.

If a tame nurse is next to you and you choke over food, it should do the Heimlich maneuver on you, saving you from dying and making you vomit voluminously.