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

Eileen Steinbock, from the British Dietetic Association's Food Counts group, which has looked at improving nutrition in hospitals, says what matters most is communication between caterers, dieticians and staff on the wards.

BBC: Do hospitals cater for patients with special diets?