Cacao refers to the raw material: the cacao beans that are harvested from the cacao tree. Cocoa is created after the beans are finely ground into a powder and roasted, and can be consumed as a drink or blended with sugar, milk, cocoa butter and cacao to make chocolate.

Cocoa powder also contains polyphenols, antioxidants that help to improve cholesterol and blood sugar levels and reduce the risk of heart disease. Cocoa powder is rich in theobromine, which helps to reduce inflammation and can protect you from diseases such as heart disease, cancer, and diabetes.

Cocoa beans are the seeds of the cocoa tree (Theobroma cacao). The beans are used to make chocolate and are a source of many antioxidants. Cocoa contains a variety of chemicals, including antioxidants called flavonoids. It's not clear how these might work in the body, but they appear to relax the blood vessels.

Similar to an apple tree, the cocoa tree is a fruit-bearing plant. Therefore, the cocoa seeds used in chocolate are also considered a fruit. From here, the vocabulary may become unclear, even for experts. Chocolate's main ingredient is a fruit, but the ingredient is heavily processed to create chocolate.