Just say no to the candy bar or other vending machine culprits, when you get a little peckish between meals. Plain yogurt is your best bet, or you can opt for Greek if you prefer something a bit thicker and creamier in texture. The calcium contained in yogurt helps stimulates fat burning, and because many people tend to put on weight in their backsides, this is going to be one of the places it melts the fat from. If plain yogurt is just too boring for you, add fresh fruit with a drizzle of honey and a dash of cinnamon.