A new long-term study published by the American Academy of Neurology suggests that people who regularly consume full-fat cheese may have a lower risk of developing dementia later in life. The findings add to a growing body of research examining how specific dietary choices influence brain health as populations age.
What the Researchers Studied
The study followed nearly 28,000 adults in Sweden for more than two decades. Participants provided detailed information about their eating habits, including how often they consumed various dairy products such as cheese, cream, milk, and yogurt. Researchers then compared these dietary patterns with dementia diagnoses recorded over time. By adjusting for factors such as age, education, physical activity, and cardiovascular health, the scientists aimed to isolate the potential role of diet in cognitive decline.
Cheese and Brain Health
The results showed that individuals who ate higher amounts of full-fat cheese had a noticeably lower risk of developing dementia compared with those who consumed very little. High-fat cream was also linked to a reduced risk, while low-fat dairy products did not show the same association. Interestingly, the protective link appeared strongest for vascular dementia, a form of the disease linked to reduced blood flow to the brain. The study also found that genetic factors mattered, with benefits more apparent in people who did not carry a high-risk Alzheimer’s gene variant.
Important Limitations to Consider
Researchers caution that the study does not prove that full-fat cheese directly prevents dementia. Because the research was observational, other lifestyle or dietary factors may have influenced the results. In addition, eating habits and food quality vary widely between countries, which means the findings may not apply equally to all populations.
What This Means Going Forward
Rather than encouraging people to increase saturated fat intake, scientists say the findings highlight the need for more research into how specific foods interact with brain health. Understanding these links could help refine dietary recommendations aimed at reducing dementia risk.
