Don't get us wrong, 100-percent fruit juice does contain tons of vitamins and minerals. However, unless you're looking to gain weight or subsist on a liquid-only diet (um, no fun!), fruit juice is a quick way to drink a bunch of calories without filling you up. Not to mention that many fruit juices on the market don't even contain 100 perfect fruit juice! Instead of drinking your juice, make a point to chow down on two to three servings of whole fruit a day.