Dupe never needs to eat

This effect seems to continue even when he's not researching, but this is the only difference between him and the other dupes I believe

Save file?

The Chaotic Timeline.sav

I have the same problem in my big base with 30 dupes on the preview branch. It is almost making the game unplayable because when someone with food expectations eat licemeal they get the "lousy food" debuff which never wears off. This gives them so much stress that even a massage table can't stop it. Eventually they reach 100% stress and starts puking contiously. Saving the game and reloading fixes this. The lousy food debuff disappears and they no longer get 30000 calories continously. But in my base it usually happens again on another random dupe within a few cycles.

Disable their ability to eat meal lice  In the top right click Consumables this lets you control their eating habits.

Bump, just had this. One of the dupes was considered eating, even though he spent all day on the massage bed (his stress was way too high, the 150% stress from the food was on all the time), and his calories weren't dropping.

Had to save and reopen the game.

I just had this happen with one of my dupes.  Figured I'd bump the bug back up to let them know that the issue is still happening. A save/reload helped fix the issue.  They were eating mealice in a Great Hall, if that has any impact.