Caffeinated Coffee and Tea: New Evidence for Brain Health
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Summary of New Findings
A major prospective cohort study published in JAMA (February 2026) has provided compelling evidence linking moderate consumption of caffeinated coffee and tea to a significantly lower risk of dementia. The study, which followed over 131,000 participants for up to 43 years, highlights the potential neuroprotective benefits of these popular beverages.
Key Research Highlights
- Reduced Dementia Risk: Participants in the highest quartile of caffeinated coffee consumption showed a 18% lower risk of incident dementia compared to those in the lowest quartile.
- Cognitive Function: Higher intake was associated with lower prevalence of subjective cognitive decline and better performance on objective neuropsychological tests.
- Optimal Dosage: The most pronounced benefits were observed at moderate levels: approximately 2 to 3 cups per day of caffeinated coffee or 1 to 2 cups per day of tea.
- Decaf vs. Caffeinated: Interestingly, decaffeinated coffee did not show the same associations with lower dementia risk.
Scientific Reference
Zhang Y, et al. Coffee and Tea Intake, Dementia Risk, and Cognitive Function. JAMA. 2026 Feb 9. PMID: 41661604.
Medical Disclaimer:The information on NourishVibes is for educational purposes only. Our content does not constitute medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or dietary supplement.
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