A recent large-scale study examined the risk factors for developing young-onset dementia (before age 65), analyzing data from over 350,000 people in the UK. The study identified 15 key risk factors, some of which are genetic or outside an individual’s control, but many are modifiable through lifestyle changes.
Among these, vitamin D deficiency stands out as one of the significant risk factors. Adequate levels of vitamin D are crucial for brain health, and a deficiency can increase the risk of developing dementia earlier in life. Other modifiable factors include social isolation, lower formal education, hearing impairment, depression, high inflammation (C-reactive protein), physical frailty, and chronic conditions like diabetes and heart disease.
Medical experts recommend maintaining healthy vitamin D levels—through safe sun exposure, diet, or supplements—as part of a comprehensive strategy to reduce dementia risk. Alongside vitamin D, regular physical activity, a Mediterranean-style diet rich in neuroprotective nutrients, and cognitive, social, and mood stimulation are advised to help protect brain health and lower the likelihood of early-onset dementia.
