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Wellington: Eating
fast food thrice a week or more elevates the risk of asthma and
eczema, while eating fruit with the same frequency provides a
protective effect, says a study.
The findings of the research led by professor Innes Asher and
Philippa Ellwood from the University of Auckland's department of
paediatrics could have huge implications for public health.
Data was collected on more than 319,000 teenagers (13-14 years of
age) from 107 centres in 51 countries, and more than 181,000
children (6-7 year-olds) from 64 centres in 31 countries, the
respiratory journal Thorax reports.
All the participants were involved in the International Study of
Asthma and Allergies in Childhood (ISAAC), a collaborative
research project which has been led by Auckland for more than 20
years and now involves more than 100 countries and nearly two
million children, making it the largest study of its kind,
according to an Auckland statement.
The teenagers and their parents were quizzed about the prevalence
of symptoms of asthma (wheeze), rhinoconjunctivitis (runny or
blocked nose accompanied by itchy and watery eyes) and eczema, and
about their weekly diet.
These included meat, fish, fruits and vegetables, pulses, cereals,
bread and pasta, rice, butter, margarine, nuts, potatoes, milk,
eggs, and fast food/burgers.
Participants were asked to assign their consumption of each of
these foods to one of the following categories: never;
occasionally; once or twice a week; three or more times a week.
After taking account of factors likely to influence results, the
analysis showed that fast food was the only food type to show the
same associations across both age groups, prompting the authors to
suggest that "such consistency adds some weight to the possible
causality of the relationship".
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