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A recent study from the University of Birmingham in the UK has unveiled promising findings regarding the health benefits of flavanols found in cocoa, particularly in relation to the detrimental effects of prolonged sitting. This research addresses growing concerns about the impacts of sedentary lifestyles, which have been likened to the dangers of smoking.
With increasing numbers of individuals spending excessive time at desks or in front of screens, health risks such as obesity and diabetes are on the rise. Previous studies have shown that every two-hour stretch of sitting can elevate the risk of obesity by 23% and diabetes by 14%. Additionally, extended periods of inactivity have been linked to a significant increase in sarcopenia, a condition characterized by the loss of muscle mass and strength.
The vascular system, which is crucial for cardiovascular health, is particularly vulnerable to prolonged sitting. Reduced blood flow and impaired arterial function can lead to severe health issues, including heart disease and strokes. In light of this, researchers at the University of Birmingham set out to determine if flavanols could mitigate these risks.
In their study, 40 healthy male participants aged 18 to 45 were divided into groups based on their fitness levels. Half consumed a high-flavanol cocoa drink containing 695 milligrams of flavanols, while the other half received a low-flavanol version with only 5.6 milligrams. After consuming the drinks, all participants sat still for two hours.
The results revealed that those who consumed the high-flavanol cocoa maintained their vascular function, showing no decline in arterial function. Conversely, participants who drank the low-flavanol cocoa experienced reduced blood flow, increased diastolic blood pressure, and lower muscle oxygenation. This indicates that flavanol intake can protect blood vessels from the adverse effects of extended sitting, regardless of an individual’s fitness level.
The study emphasizes the importance of incorporating flavanol-rich foods into daily diets to promote cardiovascular health. Flavanols are not only found in cocoa but also in various fruits, nuts, teas, and vegetables. Experts suggest that along with dietary changes, breaking up periods of inactivity with short walks or standing can further enhance long-term health.
Published in the Journal of Physiology, this research highlights the potential of dietary flavanols to support vascular health, especially in an era where sedentary lifestyles are increasingly common.
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