Scientists are to begin clinical trials to determine if eating more foods rich in vitamin E during pregnancy prevents childhood asthma.
Women will eat soups naturally high in the vitamin, which it is believed may promote lung growth in the developing foetus.
Children born with good lung function are less likely to develop asthma.
Details of the trial were outlined at the British Science Festival being held in Aberdeen.
Asthma is highly prevalent – in the UK, 10-15% of children and 5-10% of adults have been diagnosed with the disease.
The majority of children with asthma will carry the illness into adulthood.