You are ABSOLUTELY right Drtooth, harping people about their weight doesn't help them lose it any quicker.
I had a doctor for a short time, who actually did harp on me about my weight... I'd come in if I was sick, having some kind of ailment, or even for a rountine check up... and basically, the entire visit was basically like this...
"So what's the matter? Got a cold? Okay, here's your prescription, now what are you doing about your weight?"
That's all he ever wanted to talk about is what I'm doing to lose weight... I swear to God, that'd still be the only thing he'd be concerned about if I was on my death bed taking my last breath.
I switched to a new doctor after a few visits with him, and now my new doctor (he's been seeing Mom for years) is a much better person, he's kind of like a combination of both Hawkeye (personality-wise) and Colonel Potter (as he's an old codger), and he doesn't just harp on me about my weight, but rather, he's actually encouraging, and as such, I was more apt to actually want to make losing weight an effort, and as a result, I eat smaller portions, eat less snacks, and I have starting losing weight, little by little at a time; I know I still have a long way to go, because my most standards, I am far too overweight for someone my age, but luckily, I'm not in any kind of danger, as I'm internally healthy, except for high cholestoral, which will get better as I continue to lose weight.
Still, making fun of fat people in such a manner is VERY harsh; it's actually a proven fact that fat people are harassed/teased/ridiculed/insulted/etc by other "thinner" people that Black people are by racists, and I don't mean that disrespectfully, but it IS a proven fact.