Experimenting with food in my game. Each item of food has a calorie value, which are then burned off at different rates depending on if your pony is standing, resting, galloping, etc.. Unnecessary? Right now totally, but the basic idea is to eventually have buffs gained from food, so that when you get 100 calories from an apple, that's like approximately 30 minutes or however long it takes to burn them off that your pony can gallop faster or buck harder or whatever.