Cocoa powder is a natural ingredient extracted from cocoa beans through processes including fermentation, roasting, and pressing to remove cocoa butter, with the remaining solid residue ground into a fine powder.

Natural dietary sources include dark chocolate, hot cocoa beverages, and baked desserts, though antioxidant levels vary depending on processing methods (e.g., alkalization reduces active compounds). High-purity, non-alkalized cocoa powder or supplements (e.g., cocoa extracts) can provide higher doses of flavanols.

Beyond its widespread use in baking, beverages, and desserts, cocoa powder's antioxidant properties are also utilized in skincare products to delay skin aging. Overall, cocoa powder is both a vital ingredient in the food industry and a natural component with dual value in flavor and health. Its antioxidant and cardiovascular-protective effects make it a focus of functional dietary research.