Cacao has a definitive chocolate flavor to it, but has a miniscule amount of calories in it (around 10 calories per tablespoon). Cacao powder contains flavonoids, which improve circulation and lower blood pressure, making it a great option for those who suffer from poor circulation or want to improve their heart health. Check the label before you buy cacao powder. If it says the words “Dutch” or “alkalized,” it means that it has been processed, causing the majority of its antioxidants and flavonoids to be depleted.