YABVU, and completely unsupportive. I'm surprised given you are a GP that you wouldn't know the benefits of a monitored VLC diet and the success rates of LL.
How much healthier for her to be a healthy weight, both psychologically and physically.
Are you sure you're not just shitting on her parade because you are also overweight and she's actually doing something about it?
She will take you're comments to her group and will be told, quite rightly, that what you have said to put her off her goal says much more about you than her.
I lost 4 stone 18 months ago on LL. I put a stone of it back on, but that is now coming off again due to more conventional dieting.
Do you know the success rates of dieting without a proper support programme (which LL has?). It's something like 3% of ALL dieters, no matter WHAT diet they do, put it all back on and more in the space of a year.
LL is the only diet I have done where that has not happened to me. The ongoing couselling which I still commit to every week is invaluable for re-programming my brain around food.
Your colleage is doing something really proactive and you are being destructive and cruel to be so outspoken.
The success of LL for people significantly overweight is great. Psychologically the rapid weight loss spurs you on and keeps you committed. The absense of ordinary food shocks the hell out of you when it becomes crystal clear that previously you were reaching for food because you are tired, upset lonely, stressed etc. It forces you to deal with these feelings head on, rather than bury them under food.
Grrr, you're OP has really irritated me. ESPECIALLY because you are a GP.
The money is nothing when you consider you aren't buying any other food whatsoever. And you pay for the counselling and support. Finally - what price your health and happiness?