And those natural sugars can add up to lots of calories. A glass of fruit juice ranges from 100 (orange, grapefruit, apple) to 170 (grape and prune) calories for an 8-ounce serving. It's easy to ...

The grapefruit (Citrus × paradisi) is a subtropical citrus tree known for its relatively large, sour to semisweet, somewhat bitter fruit. The interior flesh is segmented and varies in color from ...