Giving vitamin A supplements to children under the age of five in developing countries could save 600,000 lives a year, researchers claim.
Writing in the British Medical Journal, UK and Pakistani experts assessed 43 studies involving 200,000 children, and found deaths were cut by 24% if children were given the vitamin.
And they say taking it would also cut rates of measles and diarrhoea.
The body needs vitamin A for the visual and immune systems to work properly.(BBC News)