Link Between Body Fat Distribution and Dementia Risk: Belly Fat as a Potential Indicator

Recent research from Monash University has shed light on the connection between body fat location and the risk of developing dementia. The study analyzed over 17,000 individuals aged 65 to 98 years participating in the ASPREE Study and revealed that men with higher levels of abdominal or belly fat are at an increased risk of dementia. Interestingly, the study also found that higher amounts of lean body mass and overall fat mass might be associated with a reduced risk of cognitive decline, with dementia risk decreasing by up to 38% in individuals with greater lean and fat mass.

The findings, published in Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, suggest that maintaining a healthy body composition in later life could be crucial for brain health. Professor Joanne Ryan, from Monash University, emphasized that while increased body weight might have protective effects on cognition, abdominal fat specifically appears to be a risk factor, particularly for men.

Excess weight, especially during middle age, is linked to various health issues including diabetes and cardiovascular diseases, which are known to increase the risk of dementia. The study suggests that strategies to reduce visceral or abdominal fat, alongside a balanced approach to maintaining muscle mass and overall body weight, could be beneficial. Lifestyle changes such as a nutritious diet and regular physical activity are recommended for those aiming to support cognitive health in aging populations.

Overall, the research underscores the importance of not only overall weight management but also paying close attention to fat distribution in preventing cognitive decline and dementia in older adults. These insights highlight the potential benefits of targeted lifestyle modifications to promote healthy aging.

Source: https://medicalxpress.com/news/2025-07-dementia-linked-body-belly-fat.html