I would really like to see this game more oriented on survival, so:
-Food spoil
-You can preserve food drying it,smoking and salting
-Keeping food in the cellar would last long
Moreover:
-Energy should be a nutrition indicator, and decrease over time also
-Stamina should have different cap related to your Energy/nutrition level and should effect less your energy while drinking
-Starvation should be a serious thing and one of your first goal in the game should be keeping yourself well-fed
Let me know what you think about, Cheers.