A review of 24 studies showed that people who eat anthocyanin-rich diets had significantly improved blood flow and better blood vessel function than those who did not.

Poor blood flow and inadequate blood vessel function are common causes of heart disease — which is why improving these risk factors may lower your risk of certain heart conditions.

Another large study in more than 34,000 women associated eating 0.2 mg of anthocyanins per day with a significantly reduced risk of heart disease.