With regard to possible study limitations, we cannot state that positive changes in insulin sensitivity induced by dark chocolate bars were due to increased NO availability. Nevertheless, the decrease in blood pressure observed after ingestion of dark chocolate bars supports this hypothesis. On the other hand, although other flavanol-containing foods in populations affected by insulin-resistant conditions such as essential hypertension and obesity. In the meantime, we conclude that our findings further contribute to explain the reasons why, in his Systema Naturae (1735), Carl von Linnè first classified the cocoa tree as Theobroma Cacao, ie, “the divine food” (18).