A vitamin made when sunlight hits the skin could help slow down the ageing of cells and tissues, say medical health researchers.

King's College - London. A study of more than 2,000 women found those with higher vitamin D levels showed fewer ageing-related changes in their DNA.

However, the American Journal of Clinical Nutrition study stops short of proving cause and effect.

A lack of vitamin D, also found in some foods, has also been linked to multiple sclerosis and rheumatoid arthritis. Read More