The passion fruit is the fruit of a number of plants in the Passiflora family. Passion fruits are round or oval. They can be yellow, red, purple, and green. The fruits have a juicy edible center composed of a large number of seeds.

The fruit is a source of carbohydrates, carotene, vitamin C, iron, magnesium, phosphorus, potassium, copper, fiber, and protein.

The part of the fruit that is used (eaten) is the pulpy juicy seeds. Passion fruits can also be squeezed to make juice.

Whole fruit contains 68 calories per 100 grams. The amount of juice in passion fruits is 25–40%.

The name of the fruit is spelled as either one word ("passionfruit", Dictionary.com) or two words ("passion fruit", Webster's Dictionary, Collins English Dictionary, Oxford English Dictionary, Cambridge Dictionary).

More Info: en.wikipedia.org