I agree with you Seadragon. For very many years, I was a fat woman in the supermarket seeking my low fat foods whilst hoping that THIS time it might work but knowing in my heart of hearts it would all fall apart eventually. Knowing what I know now, I wish with all my heart that someone who had succeeded on a low carb diet had taken the time to stop and me talk to me about what they had done. I wish that I had not spent twenty years failing to get anywhere much yet believing I was doing the right thing for me. I too find myself wanting to say something to a woman I see doing the same thing I did, and I also am nervous that the person would take things the wrong way when what I really want to do is not judge in the slightest, but just give someone an option they won't know about.
My freinds comment not just on the weight loss but also the condition of my skin and hair, I have lost 4 stones so far very easily , though I still have more to go, so its too early to say - this has " worked" for me especially in the longer term. However even though only half way there, I am happier and healthier than I have been in years.
So far I have been in convo's with at least a dozen people who from their own comments I know would benefit from LCHF, but we are all too politically correct to be able to pass on the message without fear of upsetting someone.
If it does work for me, then I have every intention of getting a badge reading "I used to be 18 stone" and wearing it with pride in the supermarket and some cards made up - with a picture of the new me and new weight and directions to find LCHF dieting on the front and the old me with a big skull and cross bones and low fat dieting on the back, so that when it happens again I can hand it out secure in the knowledge that at least I tried!.