topicCocoa Flavanol Supplementation Cognitive Function Randomized Trial
claimDNA methylation clocks provide a tractable molecular readout for testing whether nutritional and natural-product interventions can modify biological aging.
evidence level1
citationTaktaz F (2026)
sourceNatural-Product-Derived Antioxidants and DNA Methylation-Based Epigenetic Aging: A Systematic Review of Human Intervention Studies.
topicCocoa Flavanol Supplementation Cognitive Function Randomized Trial
claimNatural-product-derived antioxidants are biologically plausible candidates because they influence redox signaling, inflammation, mitochondrial function, microbial metabolism and epigenetic regulation, yet their effects on DNA methylation-based aging remain difficult to interpret.
evidence level1
citationTaktaz F (2026)
sourceNatural-Product-Derived Antioxidants and DNA Methylation-Based Epigenetic Aging: A Systematic Review of Human Intervention Studies.
topicCocoa Flavanol Supplementation Cognitive Function Randomized Trial
claimNeurodegenerative conditions such as Alzheimer’s disease (AD), Parkinson’s disease (PD), and other associated ailments rank among the foremost contributors to disability-adjusted life years on a global scale ().
evidence level3
citationLi LePing (2026)
sourceCocoa polyphenols in brain health: BDNF/CREB-mediated mechanisms in depression, cognition, and the gut–brain axis
topicCocoa Flavanol Supplementation Cognitive Function Randomized Trial
claimDysbiosis of the gut microbiota has been associated with both depressive disorders and neurodegenerative pathologies, affecting neuroinflammation, neurotransmitter synthesis, and the integrity of the blood–brain barrier (BBB) ().
evidence level3
citationLi LePing (2026)
sourceCocoa polyphenols in brain health: BDNF/CREB-mediated mechanisms in depression, cognition, and the gut–brain axis
topicCocoa Flavanol Supplementation Cognitive Function Randomized Trial
claimEmpirical evidence indicates that these bioactive constituents possess the ability to traverse the BBB and accumulate within cerebral regions associated with cognitive functions, particularly in the hippocampus (,).
evidence level3
citationLi LePing (2026)
sourceCocoa polyphenols in brain health: BDNF/CREB-mediated mechanisms in depression, cognition, and the gut–brain axis
topicCocoa Flavanol Supplementation Cognitive Function Randomized Trial
claim1 2 3 4 5 6 7 8 9 10 11 Neurological disorders and depressive disorders represent a significant and intensifying global health challenge, influenced in part by the rise in life expectancy and demographic aging.
evidence level3
citationLi LePing (2026)
sourceCocoa polyphenols in brain health: BDNF/CREB-mediated mechanisms in depression, cognition, and the gut–brain axis