Fruit Juice Concentrate
Behind the label: You probably see the words "fruit juice concentrate" on a jar of jam or in a fruit drink and think it's got to be healthier than sugar, right? Wrong. Apple, pear and white grape fruit juice concentrates are some of the most commonly used sweeteners added to foods, and they're simply empty calories, according to the Harvard School of Public Health. They're used as fat replacements, because their water content provides bulk, yet they still contain high levels of fructose, a form of sugar tied to heart problems and one that can actually lower your ability to remember things.
Your move: Fruit is "nature's candy" so eat it whole. The fructose levels are tempered by the added fiber, vitamins and minerals you get when downing whole fruits. When you do need processed foods, opt for those containing sweeteners with real nutritional value, such as real maple syrup, molasses, raw honey, and others that made our list of the 5 best sweeteners.