An August 2017 study by Brigham Young University found that, “certain compounds found in cocoa can actually help your body release more insulin and respond to increased blood glucose better … [and that] beta cells work better and remain stronger with an increased presence of epicatechin monomers, compounds found naturally in cocoa.” (EurekAlert!, the online, global news service operated by AAAS, the science society.)
In terms of food qualities, chocolate (containing cocoa) is considered hot and moist in Tibb Medicine.
In Chinese Traditional Medicine, chocolate is considered to be warm, bittersweet and tonifying to the heart.
Everything in moderation ...