Which? Says 2-4 Daily Coffees Cut Dementia Risk by 18% and May Slow Cellular Aging
Updated
Updated · The Mirror · Jun 20
Which? Says 2-4 Daily Coffees Cut Dementia Risk by 18% and May Slow Cellular Aging
1 articles · Updated · The Mirror · Jun 20
Summary
Which? highlighted research linking 2 to 4 cups of coffee a day to longer telomeres, with regular drinkers estimated to have a biological age about five years younger.
A King’s College London study underpinned the aging claim, while Which? said coffee polyphenols act as antioxidants that protect cells and reduce inflammation.
JAMA-backed findings cited by the group linked 2 to 3 cups of caffeinated coffee daily to an 18% lower dementia risk, with no extra benefit above that range.
Separate observational research suggested 3 to 5 cups of black coffee could cut type 2 diabetes risk by up to 30%, though caffeine may raise blood sugar after poor sleep or on an empty stomach.
Which? advised keeping intake to four cups or fewer and using paper-filtered coffee, since unfiltered brews such as French press contain oils that can raise cholesterol.