My girlfriend has had asthma since a child. recently she was also told she has irritable bowel syndrome, so had to cut out dairy. however soon after replacing milk with soya milk and starting soya mince and soya based drinks she started getting really bad asthma. it was worse than she had ever had before. so I did some research myself to see if there was a link and people who have regular contact with soya processing have severe breathing problems. as soon as she stopped taking soya and started rice milk her asthma left as quickly as it had appeared. she has since tried soya products and they definately affect her breathing. thought this might help someone.