Eating More of This Dairy Product May Reduce Your Risk of Dementia

Reported by MindBodyGreen.

We've spent decades being told that full-fat dairy is the enemy—that skim milk and low-fat cheese are the responsible choices. A new study flips that narrative entirely, suggesting that the fat we've been trained to fear might actually protect your brain. According to MindBodyGreen, researchers tracking over 60,000 Swedish adults found that people consuming more than 50 grams of high-fat cheese daily—roughly half a cup shredded—showed a 13% lower risk of all-cause dementia and a striking 29% lower reduction in vascular dementia compared to those eating less than 15 grams. Cream delivered similar results: just 1.5 tablespoons daily (over 30% fat) correlated with a 16% lower dementia risk.

The data behind this is substantial. Researchers didn't rely on casual food surveys; they tracked dietary habits across a 25-year window, from 1991 through 2020, documenting over 3,200 dementia cases through Sweden's National Patient Register. Participants completed food diaries, frequency questionnaires, and dietary interviews at baseline, giving researchers a detailed picture of actual consumption patterns. Notably, low-fat dairy products showed zero correlation with dementia prevention—neither protective nor harmful. The absence of benefit is just as telling as the presence of it.

What genetics revealed

The research uncovered an intriguing genetic angle: among people who don't carry the APOE ε4 gene variant (a known Alzheimer's risk factor), high-fat cheese was tied to a 13% lower Alzheimer's risk specifically. This suggests genetics may influence how our bodies respond to full-fat dairy, though researchers emphasize more work is needed to understand the mechanism.

Here's the catch—and it matters: this is observational research. It shows an association, not causation. You can't chalk this up as proof that cheese prevents dementia. But if you've been white-knuckling your way through low-fat yogurt out of guilt, this offers real permission to reconsider. Beyond dairy, your best bets remain the classics: fatty fish rich in omega-3s, colorful vegetables packed with antioxidants, quality olive oil, and fermented foods. Add brain-challenging activities, meaningful human connection, and actual cardiovascular exercise. No single food is a silver bullet, but full-fat dairy deserves a seat at the table.

The takeaway: not all fats are nutritional villains, and the full-fat dairy you've been avoiding might belong in a brain-protective diet.

Read the original at MindBodyGreen.