"According to a 2026 study published in JAMA, drinking 2-3 cups of tea or coffee daily can reduce the risk of dementia and cognitive decline. The results showed an 18% lower risk of dementia among regular coffee drinkers, and 14% lower risk for tea drinkers."
"Moderate amounts of caffeinated tea or coffee produced the best results, meaning 2-3 cups of coffee or 1-2 cups of tea daily. Higher amounts didn't have a negative impact, but neither was there an increase in benefits regarding dementia prevention."
"Importantly, those that drank decaffeinated coffee or tea didn't see the same reduction in risk. Caffeine is thought to be the key factor here, but more research is still needed to rule out other lifestyle factors."
"Coffee is a rich source of antioxidants and anti-inflammatory compounds, both of which are believed to lead to a reduced risk of chronic disease."
A 2026 study found that consuming 2-3 cups of coffee or 1-2 cups of tea daily lowers dementia risk by 18% and cognitive decline by 1.7%. The study involved over 131,000 participants over 43 years, showing consistent results across genetically predisposed groups. Decaffeinated beverages did not provide the same benefits, indicating caffeine's role in dementia prevention. Moderate consumption is optimal, with higher amounts showing no additional benefits. Coffee also offers antioxidants and anti-inflammatory properties linked to reduced chronic disease risk.
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