The soursop, also known as Guanabana or prickly custard apple, is an elongated heart-shaped fruit with green to yellow skin that has short, soft fleshy hooks. It is in the annona, or custard apple family, and related to the cherimoya. It grows in tropics on a small evergreen tree.
The soursop can grow up to six pounds in size. The flesh of the fruit is creamy white with cottony strands. Three are large, hard, shiny black seeds that are toxic.
The least acidic ripe fruits are eaten raw. The rest are sweetened and canned, or made into drinks.
Soursop is low in calories, fat and contains no cholesterol. It has calcium, potassium, vitamin C, phosphorus, and is a good source of dietary fiber.