Dark chocolate is considered healthier because it contains less sugar than other types of chocolate (milk chocolate and white chocolate). Dark chocolate also contains a higher percentage of cocoa (solids). This means it contains many potentially interesting substances, especially polyphenols and other antioxidants. Studies mainly attribute the health benefits of chocolate to these components. Chocolate may also help prevent heart disease and improve brain function1. Some studies even suggest that eating chocolate may reverse the deterioration of brain functions with age2.
1. Latif R. Neth J Med 2013;71:68-68.
2. Moreira A et al J Alzheimers Dis 2016 ;53 :85-93.