Vitamin D - associated with exposure to sunlight and eating oily fish – has a positive effect in terms of reducing the risk of dementia, according to a new study.

As the below report says, experts are not yet recommending Vitamin D supplements as a preventative measure, but the study published by the Neurology journal suggested it may be something that can help older people decrease the chances of suffering from dementia.

The full news report on the study is available at the BBC: http://www.bbc.co.uk/news/health-28674158