The episode of Sawbones where they talk about this, they imply that RFK Jr doesn’t even know what miasma theory is. The thing he talks about is weird nonsense unrelated to old medical idea (which was also wrong)

If you wish to make an apple pie from scratch…

My uncle always used to say a silly little poem:

Birdie, birdie, in the sky

Laid a white one in my eye

I don’t laugh, I don’t cry

I’m just glad that cows don’t fly