One recovering 'healthy whole-grain' vegetarian here - had 2.5 to 3 stone to lose (of almost 12 - this at 5'2"), lost 2 so far (since May). I'd never gone on a diet - refuse to do that to myself.
Key points... what you said, plus no deprivation (how about a sample day's menu or two, with photos?), and expecting the improvement in health to show in other things as well as reaching your natural weight, like better skin and hair.
Looking forward to reading the article!