Swanson Hawthorn Berries Supplement Derived from pure Berries from the Hawthorn bush, our Hawthorn Berry supplement offers a range of compounds that benefit health and well-being. Hawthorn Berries have been used for centuries as a tonic. Discover the health improving effects yourself in Swanson supplements that are delivered in convenient 565 mg pure hawthorn berries capsules. Disclaimer from the Drug and Food Administration: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.