Tip - How Many Calories Does a Whole Grapefruit Have? | LIVESTRONG.COM

The grapefruit is a citrus fruit related to the orange. The number of calories in one whole grapefruit varies according to its size and type, but overall, this tangy fruit is relatively low in calories. Typically eaten raw and fresh, or juiced, grapefruit boasts several nutritional and health benefits. Although available year round, you'll find...