A randomized, double-blind, placebo-controlled study published in Scientific Reports investigated the effects of cocoa flavanol consumption on cognitive function and cerebral oxygenation. The study found that participants who consumed cocoa flavanols experienced improved cerebral blood flow and enhanced cognitive performance during demanding tasks.These findings suggest that cocoa flavanols may support brain health by promoting better oxygenation and function of the cerebral cortex. 

Beyond cognitive benefits, cacao has demonstrated potential in mood enhancement and stress reduction. A study published in Nutrients reviewed the effects of cocoa and cocoa products on cognitive performance in young adults, noting improvements in mood and cognitive function following cocoa consumption. 

Additionally, cacao is rich in flavonoids and other bioactive compounds that possess antioxidant and anti-inflammatory properties. These compounds may contribute to the neuroprotective effects of cacao, supporting overall brain health and resilience against oxidative stress.