The problem with "weight loss coaches" is that, yes, fitness has become a craze, a fad of its own, like being "certified" as a life coach at 22 years old. It's a joke that feels serious, but it's unintentionally laughable.

If constipation or cramping are not issues with this guy's incarnation of OMAD, then it would be sound. But again, the problem becomes, can someone stay on something? It's the stability factor that always weeds out the successes from the failures...always.