Both of America's most popular juices are delicious, low-calorie beverages with many nutrients and no fat. But if you're choosing, go for OJ. It's known as a vitamin C powerhouse and boasts almost twice the potassium of apple juice. It also contains about a quarter of the recommended daily allowance for folic acid, which lowers the risk of heart disease and stroke. Apple juice has a healthful amount of potassium and vitamin C but lacks folic acid.

Orange Juice
(8 ounces, unfortified)
112 calories
0 grams fat
496 milligrams potassium
124 milligrams vitamin C
74 micrograms folate

Apple Juice
(8 ounces, unfortified)
117 calories
0 grams fat
295 milligrams potassium
103 milligrams vitamn C
0 micrograms folate