Editor’s note: Catherine Bennett Dunster wrote the Health+Food column from June 2007 to April 2008.
“I’m concerned that my 11-year-old son is overweight as he still looks like he has a lot of baby fat. He is pretty active and usually would rather be riding bikes or shooting hoops than sitting in front of the TV. Still, would you recommend putting him on a diet to help him lose weight?”
We’re constantly reminded that many Americans are gaining too much weight, and unfortunately, children have not been spared this trend. More children are gaining weight, and doing it at a much quicker pace than in past decades. The CDC’s website furnishes current numbers on prevalence and trends; the numbers are startling.
A complex web of factors contributes to this apparent crisis, but the plainest way to summarize it is to say that the modern American way of life is lethal: Sedentary lifestyles are common, and access to cheap, relatively tasty food is unlimited — tasty, that is, if you find that your palate is partial to prepackaged convenience foods and takeout from corporate chain joints.
On top of that, kids are steeped in commercials touting just those foods. According to the Kaiser Family Foundation, adolescents soak up more than 7,600 commercials in a year for fast foods, candy, and sugary cereals.
And we’ve all heard of the risks associated with being an overweight child. These children are more likely to develop such health problems as Type 2 diabetes, high blood pressure, and eating disorders, with a high probability of becoming an overweight adult. Overweight children are also more apt to be depressed and have low self-esteem. They can be the target of ridicule by other children and shaming by misguided (or just plain cruel) adults.
In an effort to assist their children in avoiding these risks, lots of parents like you think about monitoring their children’s food intake and even contemplate restricting calories for weight loss. For a variety of reasons, I’d urge you to read on for options other than putting your son on a diet. (As always, if you have concerns beyond what is covered in this short article, check with your family physician or a registered dietitian.)
At 11 years, your son’s body is continuing to grow and develop. Children grow at different rates and times and have their own very individual blueprints and growth patterns, thanks to their DNA. It is perfectly normal for adolescents to have a growth spurt in weight, followed by a catch-up growth in height later. That may very well be where your son is at right now, and restricting his calories at this time may interfere with his body’s natural process.
Though some (like Robert Jeffery, the director of the Obesity Prevention Center at the University of Minnesota School of Public Health) believe that body weight should be the focus of our efforts in screening kids for obesity and educating them about its dangers, others (such as Dianne Neumark-Sztainer, also at the University of Minnesota’s Obesity Prevention Center) steadfastly disagree.
Neumark-Sztainer, who studies adolescent eating behaviors, believes that weight-focused efforts can serve as a breeding ground for eating disorders and that even those parents with the best of intentions run the risk of inadvertently encouraging unhealthful strategies for weight loss, such as using diet pills, purging, cigarette smoking, or adopting a severely restricted diet.
You are in an excellent position to help your child make good decisions by modeling healthful behavior. In fact, Neumark-Sztainer says that modeling such behavior is the single most important thing you can do. Here are a few suggestions on how to model healthful behaviors:
Of course, with this approach, your entire family benefits.
One final word: While environmental influences such as diet and exercise matter, they are not alone in determining body weight. Our genes dictate body composition, and our brains play a key role in monitoring our programmed shape.
Though the science of weight regulation is complex, some researchers now think each of us has a preset body-weight range spanning about 30 pounds and that attempts to override what nature intended — like severely restricting food intake for weight loss — will kick physiological mechanisms into gear to thwart these efforts.
The results? A slowed metabolism for energy conservation as the body attempts to regain weight. The opposite appears to be true, too: Those looking to put on weight by taking in more calories force their metabolisms to rev up and eating suddenly becomes unappetizing and burdensome.
Catherine Bennett Dunster is a registered dietitian and a former instructor at Oregon Health and Science University. She lives with her husband and two children in Portland, Oregon.
Please send your nutrition questions to Health+Food@culinate.com.
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There are 3 comments on this item
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1. by anonymous on Oct 18, 2007 at 8:05 PM PDT
Thanks for this information. It reinforces all the things we do as a family to try to encourage our kids to be healthy and active. I’m not as concerned about weight for my boys as I am about health and good habits. My biggest problem, though, is the temptation to overdo the snacking. I don’t buy a lot of what I consider junk food (chips, cookies, candy) but I do buy crackers and make popcorn and my boys love to fill up on those salty, crunchy foods in the afternoons.
2. by Elizabeth on Oct 22, 2007 at 7:26 AM PDT
I’m so glad to hear this sane and balanced point of view. It is a concern that many more children are overweight or at-risk for overweight these days, but I couldn’t agree more that the solution is healthy eating and healthy attitudes toward food and activity, rather than trying to put all these children on diets! While there may be a small fraction of children who are extremely overweight and could benefit from calorie restricted diets, it seems like the vast majority of heavier children will be better off simply with a culture and physical environment that supports and encourages physical activity and healthy eating.
3. by Elizabeth on Oct 25, 2007 at 12:16 PM PDT
I read the debate between Kelly Brownell and Paul Campos and found it very interesting. I wish they would have done more actual debating rather than what seemed to be more a parrellel conversation with minimal reference to what the other person had said. I agree with much of what they both said, particularly Brownell’s support of programs like boosting food stamp funds for fruit and vegetable purchase and subsidizing healthy foods to make them more affordable (rather than subsidizing, say, high fructose corn syrup).
However, I think Campos overstates his case--it isn’t true that there is absolutely NO evidence that obesity is bad for your health. It is true that most studies of overweight/obesity are based on observational data rather than involving controlled experiments, and there are clearly limits to how much we can trust observational data (hormone-replacement therapy is a case study in this!). However, repeated measures data on the same people show deliterious health effects as weight increases and reversal of some of these effects as weight declines. For example, one study found that young men who gained weight through controlled overfeeding (controlled by the research study) showed significant changes in the biochemistry of their blood in the direction of diabetes, and that after they lost the weight their blood chemistry returned to normal levels (Sims et al, 1973). Similarly, when people lose weight their blood lipid and lipoprotein levels improve (Dattilo et al, 1992). Also, the mechanics of carrying a very heavy body clearly contribute to orthopedic problems and sleep apnea.
That said, I agree with Campos that the data are not clear on when your weight begins to interfere with your health. BMI of 25? BMI of 35? BMI of 45? Also, I agree that the amount of weight lost in most treatment studies is not especially impressive, even when the treated group does lose more than the control group. Given the difficulty of losing weight, governmental policies that help prevent excessive weight gain in the first place by faciliating healthy eating and active lifestyles seem extremely important. Just my $.02...
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