most users who do not have /feed use baked potatoes as a way to eat and back when i didnt have /feed i found myself accidentally selling mine when trying to /sell all when mining or farming which constantly gave me an inconvenience. So I feel that just not allowing them to be sold may help.
Don't use /sell all - use /sell hand instead or get the powertool donation feature and set /sell to individual blocks. I always ate carrots back in the day
