Cocoa Compound Shows Heart Protection Potential

Researchers at a leading U.S. hospital have discovered that a component from cocoa may significantly lower the risk of heart-related deaths, with reductions approaching 30%.

At Brigham and Women’s Hospital in Massachusetts, scientists investigated how cocoa extract supplements might lower inflammation markers in individuals. These markers are linked to various health issues, including heart disease, rheumatoid arthritis, cognitive decline, type 2 diabetes, and muscle deterioration related to aging.

Flavanols, the active ingredients in cocoa, are believed to be the driving force behind its anti-inflammatory effects.

These flavanols can neutralize free radicals—unsteady molecules that stress and damage cells—triggering inflammation. They also hinder the creation of pro-inflammatory proteins like the cytokines identified in the study and limit the activation of genes involved in inflammation.

Over a year, participants taking cocoa extract experienced an 8% decrease in a key inflammation marker compared to those on a placebo, which helped lower their heart disease risk.

The research team thinks cocoa extract supplements, which can range in price from $15 to $45, might be beneficial in addressing ‘inflammaging’—a term they’ve coined that refers to the chronic, low-grade inflammation accumulating as we age.

Dr. Yanbin Dong, a senior author of the study, pointed out, “While cocoa extract isn’t a substitute for a healthy lifestyle, these encouraging results highlight its potential to influence inflammation as we age.”

Cocoa flavanol supplements are readily available online and in various stores, yet the lack of stringent regulations means buyers should be cautious about their safety and efficacy.

Dr. Howard Sesso, from the Division of Preventive Medicine at Brigham and Women’s Hospital, remarked on the crucial link between healthy aging and heart health. He indicated that aging-related inflammation can harden arteries, leading to cardiovascular problems. “We aimed to see if long-term cocoa extract supplementation could help with inflammaging—and the data suggests it does,” he mentioned.

The findings, published in the journal Age and Ageing, are part of the COcoa Supplement and Multivitamin Outcomes Study, a significant clinical trial examining the health impacts of cocoa flavanols through 500mg supplements.

Researchers identified five markers involved in creating and reducing inflammation that impacts heart health.

The results revealed cocoa extract’s targeted effects, resulting in a significant reduction in hsCRP, a critical marker of inflammation tied to heart disease.

After two years, participants taking cocoa extract noted an annual drop of 8.4% in hsCRP levels.

In contrast, there was a rise in IFN-γ levels—a marker important for the immune response, which helps fight infections and remove cancer cells. The other three markers remained mostly stable.

Interestingly, the supplement boosted levels of the immune molecule interferon-gamma, suggesting that while reducing harmful inflammation, it may also enhance the body’s defenses.

Cardiovascular disease remains the leading cause of death in the U.S., claiming a life roughly every 34 seconds, according to CDC statistics.

While researchers view the reduction in inflammation as a promising development, they caution that it does not definitively prove that the supplement can prevent disease or prolong life; further investigation is necessary.

Sesso emphasized the importance of highlighting plant-based foods for heart health, especially those rich in flavanols like cocoa products. “This reinforces the value of a diverse, colorful, plant-based diet in managing inflammation,” he concluded.