An article by Processed-Free America states that the Memorial Sloan-Kettering Cancer Center discovered that guanabana contains compounds that may prevent or slow the growth of cancer cells. Guanabana has also been found to kill parasites and viruses that invade the body. The fruit also helps to repress inflammation.
A study published in the "Journal of Ethnopharmacology" found that guanabana extract could inhibit the growth of the herpes virus. Another study conducted in 1997 found that guanabana extract was 250 times more effective in killing breast cancer cells than traditional chemotherapy drugs in lab tests.
Guanabana is a tropical fruit that is popular in South America. These large fruit have spiny, green skin and white flesh. The fruit tastes like a combination of strawberry and pineapple mixed with a hint of coconut and banana. It is used to make tropical drinks and to flavor ice cream, but it can be eaten plain. The skin of the fruit is bitter, but the flesh is soft and sweet. Guanabana contains a large dose of vitamin C and other B vitamins, which include thiamin, riboflavin and niacin. It also contains alkaline-forming calcium and healthy carbohydrates, which provide the majority of the nutrients found in the fruit.