Cooking meals at home has long been associated with better health outcomes. Previous research has linked home cooking to a reduced risk of conditions such as type 2 diabetes, obesity, and heart disease, while also supporting mental well-being. Now, a new study suggests that this everyday activity may also reduce the risk of dementia.
Study Explores Link Between Home Cooking and Brain Health
The study, published in the Journal of Epidemiology & Community Health, analysed health data from nearly 11,000 adults aged 65 years and older participating in the Japan Gerontological Evaluation Study.
Researchers asked participants to complete questionnaires about how frequently they cooked at home and their cooking abilities. These included basic tasks such as peeling fruits and vegetables, grilling fish, boiling eggs, and preparing simple dishes like stir-fries or stews.
According to Dr. Yukako Tani, Associate Professor in the Department of Public Health at the Institute of Science Tokyo and lead author of the study, lifestyle changes play a crucial role in dementia prevention.
She explained that the 2020 Lancet Commission report estimated that nearly 40% of dementia cases could be prevented by modifying lifestyle factors, including diet and physical activity.
Home Cooking Combines Nutrition, Activity, and Mental Stimulation
Researchers highlighted several reasons why home cooking may benefit cognitive health. First, cooking encourages healthier eating habits, such as increased consumption of fruits and vegetables and reduced intake of processed foods.
Second, cooking involves physical activity, including grocery shopping and meal preparation, which can serve as an important source of exercise for older adults.
Finally, cooking requires complex cognitive tasks like planning meals, selecting ingredients, and following recipes. These activities provide meaningful mental stimulation, which may help maintain brain function.
Lower Dementia Risk Observed Among Participants
As reported by medical news today, the study found that cooking meals from scratch at home was linked to a 23% lower risk of dementia among men and a 27% lower risk among women.
Interestingly, participants with limited cooking skills experienced the greatest benefit. Researchers observed that cooking at least once a week among this group was associated with a 67% reduction in dementia risk.
Experts suggest that learning and practicing new cooking skills may provide stronger cognitive stimulation for beginners.
Simple Ways to Cook More at Home
Nutrition experts recommend starting with simple meals and basic cooking skills. Preparing easy dishes such as stir-fries, vegetable omelets, or sheet-pan meals with protein and vegetables can help build confidence in the kitchen.
Using convenient ingredients like pre-chopped vegetables, frozen produce, canned beans, or rotisserie chicken can also simplify meal preparation.
Ultimately, experts emphasize that cooking at home does not require advanced culinary skills. Even basic meal preparation can support better nutrition, improved cognitive engagement, and overall health in later life.