Mother in Israel: I must make a correction. IT is called Dowsing. And How you described your friend’s food allergy/intolerance being diagnosed by a “doctor” who swung the pendulum for answers is exactly dowsing!. This neighbor of mine which I was referring to had her food tolerance diagnosed by someone doing dowsing with the pendulum.
I don’t think I made reference to her being over the phone or in person for this. Its irrelevant anyways. But the point is that its NISHT OSGEHALTEN!!!!
Its avodah zara.