I wonder about all the anorexic teenagers out there. Anorexia is a serious problem that certainly can cause long term health problems, even death. Will they be removed from their homes because their parents can't make them eat or gain weight?
Obesity is not, unfortunately, just about removing junk food from the home. It is a complex issue with myriad interconnected social, economic and political issues.
In any case, I hope the child is home soon and that he is able to live a healthful life.
I see a few differences with the two situations. A teenager is far more in control of what they consume than a third grader. Just as an obese teenager can purchase or consume food outside the parent's control, an anorexic teenager can employ many different methods to get out of eating.
This is a third grader. They cannot generally purchase much additional food outside the home that would impact their weight. They are far more dependent on their parent than a teenager.
Furthermore, the difference between anorexia and some causes of obesity, in terms of parental involvement are stark. You cannot force feed a child (without appropriate medical inpatient treatment). You can, however,
choose what foods to place in front of your child.
Anorexia is also a mental disorder. While obesity can be a symptom of a mental disorder, most causes of obesity are not from Pader-Wilii or binge eating disorder. And, with a third grader, the parent has far more control over what they consume than a teenager would.
I can see CPS intervening if the parents did not provide appropriate mental health treatment for an anorexic teenager. But this situation is far more like a parent who starves a third grader, than a teenager with a mental illness. Providing inappropriate nutrition can come in many forms - a lack of calories, an unbalanced diet, or far too many calories. If a parent refuses to modify their behavior after education, CPS does need to intervene on behalf of the child. Their life is at stake just as much as if the parent were providing inadequate calories.
Obesity can have other causes, yes. It's important to determine if there are underlying metabolic or mental health issues. However, even with the socioeconomic issues which impact childhood obesity (food deserts, lack of produce in cities, lack of nutrition education, etc.), an eight year old does not become 200 lbs. without serious problems in the home. It's not akin to anorexia at all.