New research from Japan suggests that eating cheese at least once a week could help lower the risk of dementia later in life. The large study, published in Nutrients, found that older adults who regularly ate cheese had a 21% to 24% lower risk of developing dementia over three years compared to those who didn’t. While modest, researchers say the difference could have a meaningful impact in aging populations.
The study tracked nearly 8,000 adults aged 65 and older and found that even small amounts of cheese — about one to two servings a week — were linked to better brain outcomes. Processed cheese was the most common type eaten, but researchers believe cheese’s combination of probiotics, peptides, antioxidants, and vitamin K₂ may help reduce inflammation, improve circulation, and protect brain cells.
Experts note that the study doesn’t prove cheese directly prevents dementia, but it adds to growing evidence that fermented dairy foods may support brain health. Moderate consumption of quality cheeses, especially those rich in natural fats and probiotics, could be a simple way to help keep the mind sharp with age.
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