In recent years, elderberry supplements have grown in popularity. Proponents claim they possess immune boosting benefits. Is this backed by science?

As for using elderberry syrup to treat an ailment, Peifer recommends one-half to a whole tablespoon daily for adults and one-half to a whole teaspoon for children.

Native to Missouri, elderberry hasn't featured prominently in local cuisine, but farmers are working to create an industry around it.

Phoenix-based Original Elderberry Company makes berry-based syrups and soaps to help fight infections and boost immunity.