I think that this is something that it growing and catching on by leaps and bounds. If you look on Amazon at the Kindle Store, you will find many books about OMAD as well as intermittent fasting, which is also highly popular for people to lose weight and become healthy again.
There is a Facebook Group that goes with this website and forum, and it now has over 70,000 members worldwide ! !
If you want to join the Facebook group, go to the main website page, scroll down until you see the symbols for Facebook, Twitter, etc, and then you can follow us on social media as well as here on the forum.
Most people are also combining a low carb/ketogenic eating plan along with the one meal a day style of eating, because when you are burning fat for body fuel, you lose most of your hunger; but many people eat whatever they want and still lose weight.
Since the main guideline is to eat and then fast, this style of eating can work for just about any person, and with any kind of food diet.