Scientists at Perm Technical University reported that dark chocolate rich in cocoa supports cardiovascular health, enhances metabolism, and contributes to improved cognitive function.
According to Professor Larisa Volkova, these health benefits are primarily due to the compounds flavanols, polyphenols and theobromine, which have the highest concentrations in dark chocolate containing at least 70-75% cocoa.
She explained that the active compounds in cocoa stimulate the body to produce nitric oxide, which helps relax and dilate arteries, improving blood flow, supporting microcirculation, and reducing the effects of free radicals in cells. These compounds also contribute to maintaining the elasticity of blood vessels for longer. According to the researchers, the plant pigments found in chocolate reduce oxidative stress and inflammatory processes associated with damage to blood vessel walls.
She added that dark chocolate may also be beneficial for the nervous system, as its components support brain nourishment and enhance communication between nerve cells. Magnesium and tryptophan also help reduce anxiety, improve sleep quality, and stabilize mood. Furthermore, the polyphenols in cocoa affect gut bacteria and metabolic processes, and moderate consumption of dark chocolate may contribute to increased insulin sensitivity and a reduced risk of metabolic disorders.
For his part, Dr. Valery Litvinov, senior researcher in the Department of Chemistry and Biotechnology at the university, pointed out that the active substances in chocolate improve the delivery of oxygen and nutrients to nerve cells, which helps to maintain memory, attention and response speed.
Scientists have confirmed that dark chocolate is not a medicine and does not replace a healthy lifestyle. They indicated that the optimal daily intake is between 20 and 30 grams of dark chocolate containing at least 75% cocoa, taking into account each person's health condition and any individual contraindications.
