Weekly Cheese Habit Linked to Lower Dementia Risk, Study Suggests

Having a one-week-old cheddar or brie may do more than just satisfy your snack craving—new research suggests it could protect your brain.

A Japanese study tracked nearly 8,000 individuals aged 65 or under over three years. Researchers found those who ate cheese at least once a week had a 24 % lower risk of developing dementia than those who didn’t touch it. 

The study noted 3.4 % of regular cheese eaters developed dementia during the period, versus 4.45 % of non-eaters. 

Experts say the protective effect may come from nutrients found in cheese like vitamin K2, amino acids or even the fermented nature of many cheeses. 

That said, the researchers caution this is observational data only—it shows correlation, not cause. They emphasise healthy overall diet and lifestyle remain primary for reducing dementia risk. 

In short: enjoying cheese once a week may be brain-friendly—but it’s still important to eat a varied diet rich in vegetables, fruits and whole grains.