By Ron Teeguarden (RonT – January 19, 2012, Updated Jan 2, 2017) Chaga (Inonotus obliquus (persoon) Pilat) is a highly prized tonic “mushroom” (fungal mass). It is said to have many beneficial health functions, especially as an immune modulating tonic agent. It is found growing wild in old birch forests throughout the colder regions of the northern hemisphere, and has been well…