Even small amounts of alcohol may increase dementia risk

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A new study published in BMJ Evidence-Based Medicine suggests that no amount of alcohol is completely safe when it comes to dementia risk. The research drew on data from more than 550,000 adults ages and genetic information from 2.4 million participants. The findings add to growing evidence that even low levels of alcohol use may negatively affect health, from increasing cancer risk and disrupting sleep to potentially harming long-term brain function. The study challenges the idea that moderate alcohol use is risk-free.

Source

Topiwala A, Levey DF, Zhou H, et alAlcohol use and risk of dementia in diverse populations: evidence from cohort, case–control and Mendelian randomisation approachesBMJ Evidence-Based Medicine 2026;31:13-22.

Additional Reading

https://www.washingtonpost.com/wellness/2025/10/15/alcohol-dementia-risk/

https://www.cnn.com/2025/09/23/health/alcohol-dementia-risk-study-wellness

https://www.ox.ac.uk/news/2025-09-24-any-level-alcohol-consumption-increases-risk-dementia