>> "My wife feels better" is just different superstition, not science.
Really? If my wife started feeling better due to a dietary change that goes against what doctors say I would be delighted!
Would you prefer that you wife keeps feeling shitty, but hey, atleast she is following the advice of "professionals"?
The N=1 where N=1 got better is all that matters! Because that N=1 is you or your wife!