Why are we not aware of this? Its because some big corporation want to make back their money spent on years of research by trying to make a synthetic version of it for sale.

So, since you know it now you can help a friend in need by letting him know or just drink some sour sop juice yourself as prevention from time to time. The taste is not bad after all. It’s completely natural and definitely has no side effects. If you have the space, plant one in your garden.
The other parts of the tree are also useful.