11. Olive Leaf Extract
It’s not just olives and their oil that offer health benefits – the leaf of the olive tree is also handy to have around the house. Olive leaf extract has been used as a natural fever reducer since at least the early 1800s.
It was also found to treat malaria. Researchers have discovered recently that it is the elenolic acid in olive leaves that functions as a broad spectrum antibiotic that can kill bacteria, viruses, and fungi.