Consumers are increasingly calling for low alcohol wine, according to Professor Roger Corder of the William Harvey Research Institute.

Speaking at the 2009 London International Wine Fair today (13 May), Corder said there is "definitely" a call for low alcohol wine. "People don't want to get up after lunch with a dizzy head," he told visitors.

Corder, author of The Red Wine Diet, said that rich red wines should also contain more oligomeric procyanidin, an ingredient found in red wine linked to a reduced risk of coronary heart disease and lower mortality.

"For many it remains a key factor in choosing wine. There have been many studies built off that," he said.

In a recent study of 300 wines, Corder said that only 10% had a good heart rating of four or five. Domaine de Saint Guilhelm however, had "one of the highest levels" of oligomeric procyanidin in any wine he had ever measured.