Game Mechanics: Can't eat or drink

[Foldarn]

My toon eats and drinks as the game needs him to, but I cannot force him to eat or drink anything. I only keep foraged foods, so he shouldn't always be full. I'm also not seeing any messages about eating it or being full and not being able to. Right-clicking does nothing to food items, but if I right-click and hold, I still get a description window. Any ideas?