Else section in if statement not executing?

I have an else section in my if statement. Do I need to be more specific and make it an if else with parameters or what? Here is the code. Because the else is being met in the situation I cooked up.

 if (item.itemType != Item.ItemType.Ammo || item.itemType != Item.ItemType.Consumable || item.itemType != Item.ItemType.CraftingMaterial || item.itemType != Item.ItemType.QuestItem || item.itemType != Item.ItemType.Ring || item.itemType != Item.ItemType.Necklace) {
             toolTipInformation.transform.GetChild (3).GetComponent<Text> ().text = "Durability: " + item.itemDurability;
         } else {
             toolTipInformation.transform.GetChild (3).GetComponent<Text> ().text = "";
         }

Oh god it looks terrible