Raspberry ketone is a natural phenolic compound that is the primary aroma compound of red raspberries. It is used in perfumery, in cosmetics, and as a food additive to impart a fruity odor. It is one of the most expensive natural flavor components used in the food industry. The natural compound can cost as much as $20,000 per kg.[3] In 1965, the Food and Drug Administration placed raspberry ketone on generally recognized as safe (GRAS) status.

Raspberry ketones are a potent fat burner. They increase adiponectin which is a hormone that increases metabolism. This thermogenic process heats up the fat cells helping to melt away excess fat and pounds. In turn, the fat within your cells gets broken up more effectively helping your body burn fat faster.