First they used adults, whereas the evidence is that milk triggered asthma is much commoner in children. Then they carefully excluded anyone who had any skin prick response to any dairy component! Then half the 20 were people picked because they were sure milk didn't affect them! Finally of the 10 people who thought milk affected their asthma, they gave only a single dose of milk and of the 3 who appeared to react, they only did proper further assessment on 1 of them. Incredible to then conclude milk doesn't trigger asthma. Medical journals publish any old rubbish. Such a weak study should never have even received ethics approval to proceed, much less been published. Gross over-interpretation of the findings. They should have done the study with at least 100 children and done a double-blind cross-over study with three serves of dairy vs soy/ day (masked with strong chocolate flavour etc) for a good three weeks each. And they shouldn't be on anti-asthma medication. You can't do a study with extremely weak power to detect a difference then say that a negative result rules out the possibility that Dairy can worsen asthma. All they've shown is that it isn't a really common trigger in Adults sufficient to worsen asthma despite medication (even that it would only be sensitive enough to detect if it was a very strong effect in something like 30-40% of adults).