Sip Smarter: Our Guide to Healthy Drinks

Get Juiced

OJ accounts for more than half of all fruit-juice sales in the United States, and no wonder: We each consume more than four gallons of it a year. "A cup a day is fine, especially if you have trouble getting your daily servings of fruits and veggies otherwise," Taub-Dix says. "But eating a piece of fruit is the better choice, since it packs more fiber into fewer calories." A medium orange has about 60 calories, 12 grams of sugar, and 3 grams of filling fiber; an 8-ounce glass of juice has 112 calories, almost twice as much sugar as the fruit, and only half a gram of fiber.

Sip Tip: Be sure to pick a carton labeled "100 percent juice." "There are plenty of impostors out there containing a lot of added sugar. For a healthier fix and to slash the calories, mix juice with seltzer or club soda," Taub-Dix says.