Cheese & Dementia Risk: What the Latest Research Really Means

The Surprising Results: What Did the Researchers Find?

A study published in the journal Neurology presents compelling findings. Researchers followed nearly 28,000 people for 25 years. Their key observations:

• Individuals without a known genetic risk for Alzheimer’s disease who consumed more than 50 grams of full-fat cheese per day had a 13% to 17% lower risk of developing the disease.
• Those who consumed more than 20 grams of full-fat cream per day had a 16% to 24% lower risk of dementia overall.
• Notably, no association was found for milk or low-fat dairy products.

The Big ‘BUT’: It’s Not About the Cheese Itself

This represents the most important takeaway from the research, and is emphasized by the scientists themselves. The individuals who ate more full-fat cheese and cream were, across the board, healthier and had better lifestyles.

Specifically, this group in the study was also:

• More highly educated.
• Less likely to be overweight.
• Significantly less likely to have cardiovascular disease, stroke, high blood pressure, and diabetes – all known risk factors for dementia.

cheese is likely not a ‘magic’ protector. It’s more likely a marker for an overall healthier lifestyle and dietary pattern. Participants likely consumed cheese as part of a balanced diet, rather than as an addition to an unhealthy lifestyle.

Putting it in Perspective: How Does This Fit into the Bigger Picture?

These results challenge decades of public health advice to choose low-fat dairy to protect the heart. However, they fit into a broader, more complex understanding. Other studies suggest that cheese consumption may be linked to a lower risk of heart disease, and that full-fat dairy does not necessarily increase cardiovascular risk.

The researchers took careful steps to strengthen their findings. They excluded individuals who already had dementia or developed it very early in the study, reducing the chance that early memory problems influenced their reported eating habits.

So… Should I Eat More Cheese Now?

The clear answer is: no, that is not the conclusion. This research is not a free pass to indulge in unlimited cheese boards. Full-fat cheese contains beneficial nutrients like vitamin K2 and B12, but also significant amounts of saturated fat and calories.

The primary message remains unchanged, and is actually reinforced by this study: your overall lifestyle is the most powerful factor. A balanced diet, regular exercise, and managing blood pressure and weight are the most proven ways to keep your brain healthy. A piece of cheese can fit into that, but it’s the tip of the iceberg, not the whole thing.

It’s also important to note that the observed benefits were primarily seen in individuals without a genetic predisposition to Alzheimer’s disease. This suggests that genetic factors play a significant role, and dietary interventions may have varying effects depending on an individual’s risk profile.

Finally, a February 4, 2026 report from Loughborough University highlighted that the study’s findings likely reflect overall diet and lifestyle, rather than a direct effect of dairy. A similar observation was made in a December 17, 2025 article in The New York Times, which noted the association between high-fat cheese or cream and a lower risk of dementia.

Further research is needed to fully understand the complex relationship between diet, genetics, and brain health. However, this study provides valuable insights and encourages a nuanced approach to dietary recommendations.