First things first: remove certain foods from your diet — namely, the junk. After eliminating processed foods, refined carbs, and sugar, you'll have more energy through the day, and you can kiss that afternoon slump goodbye. Take an elimination diet a step further by cutting out gluten, dairy, caffeine, and alcohol for two weeks. While the first few days may feel painful, in no time at all, you'll be feeling less bloated and more clearheaded. Here are five reasons why an elimination diet can work for you.