Cocoa gets a bad rap because it’s very high in saturated fat and void of almost all other nutritional value, aside from sugar so it’s often difficult to believe that chocolate (even dark chocolate) could contain any healthy benefits. If you purchase a chocolate bar at your local bodega, yes, the basis is taken from the cocoa bean, however, there is usually a lot of sugar (and other ingredients) added.
This is because cocoa is highly processed, in fact it’s totally processed. Common additives can include artificial flavor, color, soybean oil, soy lecithin, milk solids, and more. This is the type of chocolate available at most stores. Look for a chocolate made from raw cacao to avoid the type of bars that will otherwise contribute to health negatives such as weight gain, metabolic syndrome, heart disease, and type II diabetes.