I'm still not convinced this is Michael Moore. It doesn't sound like him and it doesn't look like him. No bells of recognition ring. His slanted eyes, his no-lips-having mouth, his Princess Leia hair puffs. Nothing matches. But if it really is him then you're forced to ask, "What went wrong?"
I know he gets exercise because he's all over the place.
It must be copious quantities of burgers and burritos and pizzas such as you have on the road and in piles that would halt Adam Richman, the food challenge guy. But even Adam Richman knew he cannot do that forever and he abruptly stopped it [adam richman trimmed down.]
I don't know why they are claiming this video is Michael Moore. I'm baffled. Maybe it was a joke.