People in African and South American countries have used the bark, leaves, root, and fruits of the graviola tree to treat infections with viruses or parasites, rheumatism, arthritis, depression, and sickness. We know from research that some graviola extracts can help to treat these conditions.
In laboratory studies, graviola extracts can kill some types of liver and breast cancer cells that are resistant to particular chemotherapy drugs. But there have not been any studies in humans. So we don’t know whether it can work as a cancer treatment or not.
Many sites on the internet advertise and promote graviola capsules as a cancer cure but none of them are supported by any reputable scientific cancer organisations.