Almonds grown from the fruit of the same name taste bitter and contain an alkaloid called amygdalin. Though small amounts of this compound are safe to ingest and rarely cause an upset stomach. In order to ingest larger quantities the individual needs to build up their ability to assimilate the Amygdalin by gradually increasing their consumption and thereby increasing the body’s level of the “protecting enzyme” known as Rhodanese. These almonds have been used to make almond oil, which can be found in cooking or cosmetics. Bitter almonds have a unique flavor and can be used in baking or almond milk. Most common Almonds contain very little amounts of Amygdalin as it is required by the almond board.