Two years of cocoa extract cut aging-related inflammation in seniors by 8%
Two years of cocoa extract cut aging-related inflammation in seniors by about eight percent. In a large randomized trial, daily capsules rich in cocoa flavanols reduced C-reactive protein, a key marker of chronic inflammation, compared with a placebo. At the same time, interferon-gamma activity increased, signaling a more robust immune response. The findings point to cocoa as a potential ally in slowing some age-related health declines.
In This Article:
The study at a glance: 600 seniors, cocoa vs placebo, two-year randomized trial
The trial enrolled about 600 older adults who were randomly assigned to receive either cocoa extract capsules or a placebo for two years. Researchers tracked C-reactive protein and interferon-gamma to measure inflammation and immune activity. The work builds on the COSMOS project, which has previously suggested that regular cocoa intake is associated with lower cardiovascular risk.
What changed in the body: CRP down, immune signal up
CRP fell by roughly eight percent in the cocoa group relative to placebo, while interferon-gamma activity rose. Although not every inflammatory indicator changed significantly, the combination of lower inflammation and higher immune signaling aligns with the idea that cocoa flavonoids can support heart and vessel health in older age. These changes echo the COSMOS finding of about a 25% lower risk of death from cardiovascular disease among regular cocoa supplement users.
Implications and limits: heart health gains, but not a universal cure
Experts say the findings provide a hopeful link between flavonoid-rich foods and aging health, but they emphasize caution. More research is needed to understand the precise mechanisms and to determine the optimal dosing. The study's authors stress that these results are not medical advice, and diagnosis or treatment decisions remain with a clinician. Still, the data reinforce the potential role of natural dietary supplements in supporting healthier aging.
A hopeful path for natural supplements in aging health
Moving forward, researchers aim to clarify how cocoa components produce these effects and to translate them into practical guidance. If confirmed, cocoa-derived supplements could become part of a broader strategy for healthier aging. In the meantime, including flavonoid-rich foods in a balanced diet may offer a tasty, evidence-supported way to support heart health—under medical supervision.
