See: Cocoa Powder. Chocolate is a dark brown and rich dessert, commonly consumed in square form. It is made primarily from cocoa powder, cocoa butter, sugar, and often milk as well.
Cocoa is rich in flavanols, and via this chemical it has shown to decrease insulin resistance, enhance insulin sensitivity, decrease blood pressure, decrease risk of cardiovascular disease and alleviate other cardiovascular disease-associated ailments. Though, despite the benefits of cocoa, many of the foods containing large amounts of chocolate are often heavy laden with fat and sugar, making excessive chocolate consumption a concern.
See: Cocoa Powder