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May- June-July 2005
Vol. 42, No 14
NEW RESEARCH
Baby clues to obesity
Babies who gain weight faster than normal during their first six
months of life are more likely to be overweight at age two, which
could foreshadow obesity during childhood and beyond, British and
Canadian researchers report.
Doctors know from earlier research that babies born small are more
likely to be obese later in life and that children who are
overweight at age two are more likely to obese as adults.
This study of 1,650 babies focused on the rate of weight gain in
their first six months and concluded that the track to obesity is
set by the half-year mark.
“This is a new maker that might be a predictor of future body
weight,” says Andrea Dunaif of Northwestern University in Chicago,
United States (US) and president of The Endocrine Society. “Obesity
is incredibly hard to treat. Ways to identify children at risk are
very important, so we can focus prevention efforts to those
children.”
Surprisingly, what and how much babies were fed had no effect on the
findings, the researchers noted.
One
possibility for the marker is that during pregnancy, a metabolic
switch is activated in the foetus, causing the baby to be born small
but with the ability to store extra calories efficiently as a
survival mechanism, says Kenneth Copeland, University of Oklahoma
(US) professor of pediatric diabetes and endocrinology.
The
researchers did not report a cause-and-effect relationship in their
findings. “If a baby gains weight real rapidly, it predicts obesity
in childhood. That doesn’t necessarily mean it causes it,” Copeland
says.
The
next step is more research to see whether the relationship between
rapid weight gain in infancy and later obesity can be influenced by
breast-feeding, nutritional improvements or other interventions, he
adds
~ Source: New York Times, June 3, 2005 |