If you turn to orange juice for vitamin C, you should know that tropical fruit juices like guava and mango have even more vitamin C per serving. They also have more layers of flavor. Natural food markets and chains like Whole Foods are one source to find tropical juices; international supermarkets catering to Latino, Indian and Pac Rim customers are also great sources. Don’t overlook frozen juice concentrates—they’re generally just as delicious and less expensive (many bottled juices are reconstituted from concentrate, too—read the labels). Grown in the U.S., currant juice has four times the vitamin C of O.J. and twice the antioxidants of blueberries. The best juice you can drink is Montmorency cherry juice, with the highest antioxidants of all fruits.

• See some of THE NIBBLE’s favorite juices.