NEWS RELEASE
March 3, 2000
American Heart Association
Your Kids are What You Eat
The eating habits
of parents may play an important role in the development of obesity in
children, according to research being presented today at the American Heart
Association’s L.J. Filer Jr. Third Annual Conference on Atherosclerosis in the
Young.
Researchers looked
at the eating habits of the parents of 92 children enrolled in the Framingham
Children’s Study. The youngsters were
all 3 to 5 years old at the beginning of the study.
The researchers
used a standardized questionnaire to assess three factors associated with
parents’ eating behaviors; dietary restraint, disinhibited eating and
self-perceived hunger. The Dietary
Restraint Scale reflects an individual’s conscious efforts to restrict food
intake. The Disinhibition Scale
measures “impulsive eating,” as well as the resulting fluctuation in both
dietary intake and body weight. The Hunger
Scale measures whether a person eats in response to internal cues, such as
hunger, or to external cues.
The parents were
divided into three groups for each of the three scales depending on whether
they had high, medium or low scores on those scales. Researchers then looked at changes in body fat in the children
over the next six years. Body fat was
measured each year by recording the child’s height and weight and by using
calipers to measure the thickness of the child’s skinfolds in five different
areas of the body as a total measure of body fat. Researchers also recorded changes in the skinfold thickness in
the children from year-to-year.
They found the
kids whose parents scored highest on either dietary restraint or disinhibition
had greater increases in body fat over the next six years than children whose
parents scored lower.
The parent’s level
of impulse eating had a particularly strong effect on the child’s body fat
level. For example, the children whose
parents had the highest scores in the disinhibition scale gained an extra 25
millimeters in their skinfold thickness compared to children whose parents had
the lowest scores.
The children whose
parents alternated between dietary restraint and impulse eating gained the most
body fat over time. “The parents were
consciously struggling to restrain their intake of food but, by their own
report, were prone to eating excessively on impulse even when they weren’t
hungry,” says Lynn L. Moore, D.Sc., assistant professor of medicine at Boston
University School of Medicine, Boston, Mass.
“Most people do this on occasion by eating a piece of chocolate cake
even though they aren’t hungry, but disinhibited eaters are particularly prone
to this loss of control in the presence of certain food cues,” she says.
The study’s lead
author, Maggie Y. Hood, M.P.H., also of Boston University School of Medicine,
says parents are often unaware that they are passing on their own dietary
habits and attitudes to their children.
“As with many other things, the children are doing what their parents
do, rather than listening to what their parents say,” she says. “Some parents may emphasize the importance
of a healthy diet to their children, but if their own diet doesn’t reflect that
belief, it’s not likely to be a very effective message.”
Hood says that
parents have a great deal of control over the eating habits of their
children. “It may be that parents who
score the highest on dietary restraint may also exert excessive control over
the child’s eating choices. This may
suppress the child’s ability to internally regulate his or her own dietary
intake.”
Moore, director of
the Framingham Children’s Study, says that researchers are looking at whether
parents with high dietary restraint scores were more likely to be more
controlling with their children such as insisting that the children eat on a
specific schedule even if they aren’t hungry, or that they clean their plates
even if they are already full.
Moore says the
study’s purpose was to identify how risk factors for chronic adult conditions
such as high blood pressure, heart disease, or obesity are first established,
so they can be prevented. “By the time
a child reaches adolescence, many of those risk factors are already set. These children have already developed
habits, such as a sedentary lifestyle or unhealthy dietary patterns that will
persist throughout their lives, and increase their risk for heart disease in
the future,” she says. “They may also
be on their way to developing obesity or high blood pressure.”
Moore says this
and similar studies may provide a two-fold benefit to families; Helping their children to develop healthy
lifestyle behaviors, and motivating parents to change some of their own
unhealthy habits.
Co-authors are
Anuradha Sundarajan-Ramamurti, M.A.; Martha R. Singer, M.P.H.
L. Adrienne
Cupples, Ph.D.; and R. Curtis Ellison, M.D.
© 1999 American
Heart Association