Parents, more than parenting, may be to blame for obesity
(Detecto) The story of a Cleveland 8-year-old put into foster care because his mother neglected to manage his weight, allowing it to rise to 200 pounds, has drawn national attention. It is the first time that state officials can recall a child being moved into foster care solely because of his weight.
Many have attacked the move as an overreach, with the state inappropriately moving a child out of his mother’s house. Ethical issues aside, the case raises an interesting policy question: Will it work? How much do parents influence their children’s weight?
Researchers don’t have a simple answer to that question, but they have learned that much of a parent’s influence on childhood obesity has to do with genetics rather than environment.
To start, studies have found that, of the many home-environment factors at play, maternal obesity is the best predictor of childhood obesity, even more so than low family income or less cognitive stimulation.
But more recent research, particularly a highly cited study in the American Journal of Clinical Nutrition, suggested that was more a question of genes than habits. The study, which followed 5,092 pairs of British twins ages 8 to 11, found that the most influence parents have on obesity is actually genetic, a factor of inheritance, rather than the environment. “Contrary to widespread assumptions about the influence of the family environment, living in the same home in childhood appears to confer little similarity in adult BMI [body mass index],” authors Jane Wardle, Susan Carnell, Claire Haworth and Robert Plomin write.
The research raises one key question: If obesity is genetic, why has it increased so much in recent years? The researchers explain that, some of the genetic predispositions for obesity have existed for awhile. But changes to our food environment, like the proliferation of fast food, have enabled those predispositions to become more powerful.
“Although contemporary environments have made today’s children fatter than were children 20 years ago, the primary explanation for variations within the population, then and now, is genetic differences between individual children,” they write.
To be sure, environmental factors such as television watching, food consumption and physical activity matter, too. And so do very early parenting decisions: bottle-feeding as a baby, for example, is associated with a higher rate of obesity than breastfeeding. Schools, particularly with the food they serve and recess time they provide, play a role, too. The research on parental influences on childhood obesity suggests that childhood obesity is a complex, multi-faceted issue where even a parent’s own influence — her own genes — are a factor she can’t control.
Joseph, if food consumption -- and that includes particularly the additives and extra filling ingredients that food companies are allowed to add to the foods that we eat -- is a main factor contributing to increased obesity rates, would it not make some sense to regulate this industry? Ultimately what we eat is our own personal decision, but that decision should be made with free access to information about what we are eating so companies should be forced to disclose the amount of corn, for example, that is being added to everything we put in our mouths. If we know that cokes contain 13 teaspoons of sugar and that kids like sugar and will probably go for the sugar if partents are not around, why shouldn't we make a rule that no vending machines with sugary drinks will be allowed at an elementary school in the lunch room? While whether to drink sugary soft drinks (and even sugary juices which are packed with calories) is ultimately a personal decision, the effects of an unhealthy diet become a public health issue. The number of childhood diabetes has risen drastically...that means massive doses of medicine over a long term and often increased hospital and medical expenses that are frequently paid in part by the government and represents a significant burden on the healthcare system...this is not just a personal decision, is it?
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