TheDigger Intelligence Unit
A large Swedish study found that eating full-fat dairy might lower the risk of dementia.
Researchers tracked 27,670 adults over 25 years, and 3,208 of them developed dementia. For people without a genetic risk for Alzheimer’s, those who ate more than 50 grams of full-fat cheese each day had a 13 to 17 percent lower chance of getting dementia. People who ate at least 20 grams of cream daily also had a 16 to 24 percent lower risk. The study did not find any protective effect from low-fat dairy, milk, or fermented dairy products.
A Challenge to Conventional Wisdom
For many years, public health experts have advised people to pick low-fat dairy to protect their heart. Since heart disease and dementia share risk factors like high blood pressure, diabetes, and obesity, the Swedish study questions whether avoiding full-fat dairy is always the best choice.
Previous research has shown similar benefits. For example, a Finnish study that followed 2,497 men for 22 years found that cheese was the only food linked to a lower risk of dementia, reducing cases by 28 per cent. However, results are not always the same in different countries. Some studies in Asia, where people eat less dairy, have found cognitive benefits, but many European studies have not. Context
The Swedish researchers tried to reduce bias in their study. They left out people who already had dementia at the beginning and looked at the data again after removing those who developed dementia in the first ten years. This helped make sure that early memory problems did not affect even so, lifestyle may help explain the results. People who ate more cheese and cream were usually better educated, less likely to be overweight, and had lower rates of heart disease, stroke, and diabetes. Each of these factors can lower the risk of dementia on its own. dementia risk.
The study also suggests that substitution effects could play a role. Some of the benefits might come from people swapping less healthy foods, like processed meats, for dairy products. In this case, the protection may not come from cheese or cream directly, but from eating fewer highly processed foods.
Beyond Single Foods
Experts say people should not see cheese or cream as “magic bullets.” Full-fat dairy contains nutrients like vitamins A, D, K2, B12, folate, iodine, zinc, and selenium, which are important for brain health. Still, what matters most is your overall diet. Diets like the Mediterranean diet, which help protect against dementia and heart disease, include cheese along with vegetables, fish, whole grains, and fruit.
The Bottom Line
The Swedish study does not prove that full-fat dairy stops dementia, and it does not mean people should eat a lot of it. Instead, the study shows that nutrition is complex and that diet should be considered as a whole. The best ways to protect your brain are still moderation, balance, and healthy living.