Elderberries have been used for centuries as a to treat the cold and flu, both of which are caused by a virus. The berries and flowers of elderberry are packed with antioxidants and vitamins that may boost your immune system. They could help tame inflammation, lessen stress, and help protect your heart, too. Some experts recommend elderberry to help prevent and ease cold and flu symptoms. With so many health-full properties, elderberry syrup is a great addition to one’s daily wellness routine!