Updated

Should parents of extremely obese children lose custody for not controlling their kids' weight? A provocative commentary in one of the nation's most distinguished medical journals argues yes, and its authors are joining a quiet chorus of advocates who say the government should be allowed to intervene in extreme cases.

It has happened a few times in the U.S., and the opinion piece in Wednesday's Journal of the American Medical Association says putting children temporarily in foster care is in some cases more ethical than obesity surgery.

Dr. David Ludwig, an obesity specialist at Harvard-affiliated Children's Hospital Boston, said the point isn't to blame parents, but rather to act in children's best interest and get them help that for whatever reason their parents can't provide.

"Despite the discomfort posed by state intervention, it may sometimes be necessary to protect a child," Murtagh said.

Roughly 2 million U.S. children are extremely obese. Most are not in imminent danger, Ludwig said. But some have obesity-related conditions such as Type 2 diabetes, breathing difficulties and liver problems that could kill them by age 30. It is these kids for whom state intervention, including education, parent training, and temporary protective custody in the most extreme cases, should be considered, Ludwig said.

While some doctors promote weight-loss surgery for obese teens , Ludwig said it hasn't been used for very long in adolescents and can have serious, sometimes life-threatening complications.

Ludwig said he starting thinking about the issue after a 90-pound 3-year-old girl came to his obesity clinic several years ago. Her parents had physical disabilities, little money and difficulty controlling her weight. Last year, at age 12, she weighed 400 pounds and had developed diabetes, cholesterol problems, high blood pressure and sleep apnea.

"Out of medical concern, the state placed this girl in foster care, where she simply received three balanced meals a day and a snack or two and moderate physical activity," he said. After a year, she lost 130 pounds. Though she is still obese, her diabetes and apnea disappeared; she remains in foster care, he said.

In a commentary in the medical journal BMJ last year, London pediatrician Dr. Russell Viner and colleagues said obesity was a factor in several child protection cases in Britain. They argued that child protection services should be considered if parents are neglectful or actively reject efforts to control an extremely obese child's weight.

A 2009 opinion article in Pediatrics made similar arguments. Its authors said temporary removal from the home would be warranted "when all reasonable alternative options have been exhausted."

Read more at My Fox Boston.

Follow us on twitter.com/foxnewslatino
Like us at facebook.com/foxnewslatino