Consuming junk food like burgers thrice a week may lead to asthma and eczema in children, finds study.
Scientists worry that the high saturated fat levels lower children's immune systems.
A research involving more than 50 countries found that teenagers, who ate junk food like burgers three times a week or more, were 39 percent more likely to get severe asthma and younger kids were 27 percent more at risk, the Sun reported.
Both were also more prone to suffer from the eye condition rhinoconjunctivitis.
For the study, researchers from New Zealand's Auckland University looked at the diets of 181,000 youngsters aged six to seven and 319,000 aged 13-14.
The authors wrote that fast food may be contributing to increasing asthma, rhinoconjunctivitis and eczema.
They also wrote that regular consumption of fruit and vegetables is likely to protect against these diseases.
The study has been published in the British Medical Journal.