"Lack of tact from doctor"

My daughter attended an appointment recently. At the end of the consultation, the Doctor pointed out that my daughter is morbidly obese according to the NHS BMI chart. This would be contributing to her pain. The doctor asked if I was happy with this. I stated that no one is happy with their BMI. I myself am obese according to the NHS Chart and under the same category as a bariatric patient. This makes me laugh, I'm a size 16 and my daughter is a size 14. I am sensible enough to not take this so seriously but to a teenage girl, this is massively insulting and now keeps saying she is fat. I now am concerned that this is going to be an ongoing issue and I really don't need this as well as everything else. 

I think this Doctor should be mindful of teenagers, especially who are still developing physically and mentally and could have an eating disorder when speaking to them. I'm actually disgusted that this has been said to my daughter and typed to my GP and to cc another consultant in this. I myself work in the NHS, and we go on many courses on how to be tactful and be aware of patients' mental health. I personally think this Doctor needs to update their skills in this department.