In a 2023 episode of BBC Radio 4's Just One Thing with Michael Mosley, the late Dr Michael Mosley discussed vitamin D as a key nutrient that may support mental health and help protect against dementia. Mosley, who died in June 2024, emphasized the importance of this vitamin for brain function.
Vitamin D, often called the 'sunshine vitamin,' is produced by the body when skin is exposed to sunlight. It is also found in foods like fatty fish, egg yolks, and fortified products. Research suggests that adequate vitamin D levels are linked to a lower risk of cognitive decline and dementia, though more studies are needed to confirm causation.
The episode highlighted that many people, especially in northern climates, may be deficient in vitamin D, particularly during winter months. Mosley recommended considering supplements, especially for those with limited sun exposure, but advised consulting a doctor first.
As of 2026, health organizations like the UK's National Health Service continue to advise daily vitamin D supplements for certain groups, including older adults and people with dark skin, to support bone and muscle health, with potential brain benefits being an area of ongoing research.
