Drinking six cups of coffee each day could cut the risk of developing multiple sclerosis, a new study suggests.

Consuming more than 900ml (30 fluid ounces) - the equivalent of two Grande coffees in Starbucks - may offer up to a 30 per cent reduced risk, experts found.

Researchers from the Karolinska Institute in Stockholm, Johns Hopkins University in Maryland and the University of California, Berkeley, looked at two studies.