I don’t now because I can’t get enough protein in one meal (I have a gastrectomy) however, I did for a very long time. I enjoyed it for a multitude of reasons.
This is what taught me I had a very weird relationship with food. Briefly, I mourned the loss of other “meals” and then was all, “WTF am I doing?!” It made me realize the emotional reliance I place on eating. I found ZC OMAD liberating, truly.
Right now I typically IF, however once every 4-6 weeks I will do OMAD for a day or two. Just hard being only able to eat about 6-8 ounces by volume at once, tops. Even so, I still find it very useful and enjoyable to do so.