She said a study carried out last year had found no difference between soya milk and cow's milk.

BBC: Concern over soya baby milk

Heather Payne, of the Infant and Dietetic Food Association, said only a small percentage of UK mothers used soya milk.

BBC: Concern over soya baby milk

Look for one of the small outlets serving on an array of breads and buns and dumplings which you wash down with warm soya milk or tea.

BBC: Peddling in the old kingdom of bicycles

When Mr Rich went to Michigan as the government's local administrator of milk orders, in 1943, he inspected Ford's soya-milk-making machinery and was offered a licence to the process for a dollar a year.

ECONOMIST: Robert Rich