Regularly drinking green tea may help protect the brain from age-related changes, according to a recent large-scale study. The research found a link between green tea consumption and fewer white matter lesions in the brain, which are associated with cognitive decline, Alzheimer’s disease, and vascular dementia.
As people age, white matter lesions tend to accumulate in the brain. These changes affect communication between brain regions and are influenced by genetics, vascular health, and lifestyle habits. Green tea contains antioxidants and anti-inflammatory compounds, particularly epigallocatechin gallate (EGCG), which may help protect brain cells and reduce vascular damage.
The study analyzed data from more than 8,700 adults without dementia. Adults who drank about three cups of green tea daily had roughly 3 percent fewer white matter lesions compared to those who drank less than one cup. Those who drank six cups daily showed a 6 percent reduction. Coffee did not show the same effects on white matter, hippocampal volume, or total brain size.
Researchers pointed to catechins like EGCG as the compounds that reduce inflammation and oxidative stress, protect blood vessels, and may help preserve cognitive function. The study suggests that drinking three to six cups of green tea daily could provide protective benefits.
To maximize the benefits, unsweetened or lightly brewed green tea is recommended. Combining green tea with other healthy habits, such as regular physical activity, quality sleep, and a diet rich in omega-3s, colorful produce, and lean proteins, may further support brain health over time.
