Soursop

Soursop, also known as graviola, is the fruit of Annona muricata, a type of tree native to tropical regions.
Soursop is high in vitamin C, an antioxidant known to boost immune health. The vitamin strengthens your immune system, improving its ability to defend against pathogens.
Soursop is also high in antioxidants, substances that protect cells from damage. Antioxidant-rich diets may help protect against diseases like heart disease or cancer.