Preparing home-cooked meals could significantly lower the risk of developing dementia by more than 25 per cent, according to a recent study. Researchers discovered that individuals who cooked from scratch at least once a week exhibited a markedly reduced likelihood of developing the cognitive condition. Interestingly, the most profound benefits were observed in those who had little to no prior experience in the kitchen, suggesting that the mental effort required to learn new culinary skills provides vital cognitive stimulation.
The study, which was published in the Journal of Epidemiology & Community Health, monitored 10,978 adults aged 65 and above over a six-year period ending in 2022. Participants were asked to evaluate their own cooking proficiency, ranging from basic tasks like peeling vegetables to more complex skills such as preparing stews. The data revealed that men who cooked regularly saw a 23 per cent reduction in dementia risk, while women experienced a 27 per cent decrease compared to those who did not cook at all.
Most notably, participants with limited cooking skills appeared to benefit the most, showing a 67 per cent lower risk of developing the condition. The study authors suggest that this dramatic reduction reflects the brain-boosting power of engaging in new, complex activities later in life. By creating an environment where older adults are encouraged and enabled to cook, the researchers believe significant strides can be made in the global effort to prevent dementia.
During the six-year tracking period, approximately 1,195 participants developed dementia, and 870 deaths were recorded within the group. While the findings are compelling, the authors noted that the study was observational, meaning it cannot definitively prove a direct cause-and-effect relationship. They also acknowledged that results might vary across different cultures due to varying dietary habits and that some mild cases of dementia might not have been captured in the registry data used for the analysis.
This research adds to a growing body of evidence linking diet and lifestyle to brain health. Previous studies have already highlighted the benefits of the Mediterranean diet and the MIND diet—which focuses on leafy greens, berries, and nuts—in slowing the physical deterioration of the brain. Experts suggest that encouraging a “brain-healthy” diet and the active habit of cooking could be a simple, cost-effective strategy to tackle rising dementia rates as the global population continues to age.
