Cocoa Consumption May Counteract Negative Effects of Prolonged Sitting on Blood Vessels
Spending extended periods sitting can negatively impact blood vessel function and circulation, possibly leading to issues like varicose veins and even blood clot formation. A recent study suggests that consuming cocoa rich in flavanols could offer a preventative measure against these health risks.
Published in The Journal of Physiology, the research investigated whether flavanol-rich cocoa could mitigate the detrimental effects of prolonged sitting on vascular health. Forty young men, half of whom were in excellent physical condition, participated in the study. Participants unknowingly consumed either a high-flavanol cocoa drink or a low-flavanol version during each session.
Researchers monitored the function of two key arteries - the brachial and superficial femoral arteries. After two hours of uninterrupted sitting,all participants experienced a decline in vascular function. However, those who consumed the high-flavanol cocoa demonstrated considerably more stable vascular function compared to the low-flavanol group, with some even showing a slight improvement in measurements.
Interestingly, the study revealed that pre-existing physical fitness offered no protection against the negative vascular effects of sitting. Even participants with excellent cardiovascular health experienced similar reductions in blood vessel function after two hours of inactivity.
Researchers attribute the benefits of cocoa to its flavanol content. These compounds stimulate the production of nitric oxide, a molecule known to promote healthy blood vessels, while together reducing levels of endothelin, a substance that causes blood vessel constriction. Flavanols, particularly epicatechin, are found not only in cocoa but also in foods like unprocessed cocoa powder, berries, apples, and green tea.
Therefore, individuals who spend meaningful time sitting are encouraged to incorporate these flavanol-rich foods into their diet to support vascular health and potentially reduce the risk of phlebitis and related complications.
