This interesting fruit, is a large, spiny, green tropical fruit with a sweet flesh that is used to make beverages, ice creams and other sweet treats popular in South America.  The flavour is delicious–like a combination of strawberry and pineapple with an underlying creamy flavor of coconut or banana. In one study, published in Journal of Ethnopharmacology, an extract of guanabana inhibited the growth of Herpes virus in the laboratory. In addition, the Cancer Center summarizes findings that suggest guanabana extracts might slow growth of cancer cells or make them more susceptible to anti-cancer drugs.