You'd know if he had. These techniques (proven to work) take time (maybe an hour session a week for 6 - 12 weeks). This costs money and requires training. It's much easier just to bung patches at people.
Well the good thing is the patches appear to be working. I've not given up completely, I still have a few when I'm out, but I reckon I'm down by about 95%. I hardly ever think about it now even when I forget to put the patches on.

I think I'd have been too embarassed in her position to lecture others on healthy eating.