Flavanols are a type of flavonoids, which are natural plant compounds that provide color and antioxidant properties. Flavanoids are found in various fruits, vegetables, and beverages such as tea, wine, and chocolate. They have been shown to have numerous health benefits including improving heart health by reducing inflammation and preventing blood clots, enhancing brain function, and promoting better lung function. Flavanols are found in high concentrations in cocoa beans which is why dark chocolate has a reputation for being good for your health.