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Community Information Starts
Eating quickly
and until full trebles the risk of being overweight
The joint impact of self-reported behaviours of eating
quickly and eating until full on overweight: results of a
cross sectional survey
The combination
of eating quickly and eating until full trebles the risk of
being overweight, according to a new study.
Until the last decade or so most adults did not have the
opportunity to consume enough energy to enable fat to be
stored. However, with the increased availability of
inexpensive food in larger portions, fast food, and fewer
families eating together and eating while distracted (e.g.
while watching TV), eating behaviours are changing, and this
may be contributing to the obesity epidemic.
Professor Iso and colleagues recruited over three thousand
Japanese men (1,122) and women (2,165) aged 30-69 between
2003 and 2006 to examine whether eating until full and speed
of eating are associated with being overweight. Participants
were sent a diet history questionnaire about their eating
habits including questions about eating until full and their
speed of eating.
The researchers report that around half (50.9%) of the men
and just over half (58.4%) of the women said they ate until
they were full. And just under half (45.6%) of men and 36%
of women said they ate quickly.
The group of participants who said they ate "until full and
ate quickly" had a higher body mass index (BMI) and total
energy intake than those who did not "eat until full and did
not eat quickly".
The
researchers also found that both men and women in the
"eating until full and eating quickly" were three
times more likely to be overweight than the
participants from the "not eating until full and not
eating quickly" group.
The authors
conclude that a combination of eating until full and eating
quickly has "a supra-additive effect on overweight".
These findings demonstrate how current eating patterns may
contribute to the current epidemic of obesity, say Elizabeth
Denney-Wilson from University of NSW and Karen Campbell from
Deakin University in Australia, in an accompanying
editorial.
They call on doctors to work with parents to encourage
healthy eating habits in their children like eating slowly,
serving appropriate portion sizes, and eating as a family in
a non-distracting environment.
BMJ - British Medical
Journal 21 Oct 2008
Internet Press
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