There is another 'sort of' EM known as 'kefir' (บัวหิมะ[ทิเบต]?).

I hear that kefir is fermented milk with a colony of different micro-organisms (living together as one united society).

Kefir has been known and eaten for many centuries in many parts of the world.

Kefir is probably the First EM (before Japanese EM comes to be popular).

What can you tell us about kefir (and other EM) and its use in medicine?