Here's the actual code;
AddFoodItem("banana", "models/props/cs_italy/bananna.mdl", 10)
AddFoodItem("bananabunch", "models/props/cs_italy/bananna_bunch.mdl", 20)
AddFoodItem("melon", "models/props_junk/watermelon01.mdl", 20)
AddFoodItem("glassbottle", "models/props_junk/GlassBottle01a.mdl", 20)
AddFoodItem("popcan", "models/props_junk/PopCan01a.mdl", 5)
AddFoodItem("plasticbottle", "models/props_junk/garbage_plasticbottle003a.mdl", 15)
AddFoodItem("milk", "models/props_junk/garbage_milkcarton002a.mdl", 20)
AddFoodItem("bottle1", "models/props_junk/garbage_glassbottle001a.mdl", 10)
AddFoodItem("bottle2", "models/props_junk/garbage_glassbottle002a.mdl", 10)
AddFoodItem("bottle3", "models/props_junk/garbage_glassbottle003a.mdl", 10)
AddFoodItem("orange", "models/props/cs_italy/orange.mdl", 20)
But changing it should be easy indeed