An expert on obesity has stressed that the two boys, who recently underwent a gastric bypass surgery for weight loss at the mere age of 14, weighing 18 stone each, should not have been allowed to put on so much of weight to begin with.

The National Obesity Forum's Tam Fry shared that the surgery, which was believed to have been administered on the NHS at Sheffield Children's Hospital in South Yorkshire, might just have been the very "last resort" after the weight of the boys became life-threatening.

He, however, insisted that these surgeries were an apt example of society's failure to effectively understand the problem of obesity across UK, which is now growing at an alarming rate.

While first of the boys went under the knife in 2006, the other's surgery was carried out last year.

"It is a horrendous indictment on society that we should ever allow these children to get this fat. We have simply in this country failed, all of us collectively, society has failed to really understand the obesity-endemic environment we now live in", Mr. Fry said.