Hawthorn has been traditionally used by people with chest pain, heart failure, hypertension, anxiety, blood flow issues, etc. Hawthorn also contains quercetin, rutin, choline, B1, B2, Vitamin C, calcium, iron, and phosphorus. Multiple studies have shown it can help with congestive heart failure. In those with heart failure hawthorn was shown to reduce leg swelling. Hawthorn reduced inflammation in animals with asthma, arthritis, and gum disease. Hawthorn berries promote the growth of obesity fighting bacteria and could be beneficial as a weight loss prebiotic.