Disclosed herein are “ketonnabidiol” or “ketannabidiol” compositions including a combination of: (1) cannabidiol (CBD) and/or cannabidiolic acid (CBDA); (2) a ketone body component such as beta-hydroxybutyrate (BHB) and/or acetoacetate; and (3) a dietetically or pharmaceutically acceptable carrier. Also disclosed herein are methods of using such ketonnabidiol compositions for producing desired physiological effects, such as fat loss, in a mammal. The ketonnabidiol compositions beneficially enhance fat loss through ketosis while also reducing the duration and/or severity of unpleasant “keto flu” symptoms typically associated with ketosis.