Disclosures herein relate to methods of producing oral powdered compositions for
fecal microbiota transplant including desired microbes and related methods of treatment. Procedures for producing the powdered composition may include filtering a fecal sample, separating particulate matter of the filtrate, repeatedly resuspending the
sediment and separating particulate matter, diluting the supernatant and repeatedly separating particulate matter out of the supernatant, resuspending the
sediment in a
cryoprotectant to obtain a mixture, and freeze-
drying the mixture to obtain a freeze-dried, powdered composition, wherein the powdered composition may be substantially tasteless, odorless, and colorless. The FMT composition has an
odor as evaluated with a confidence of 95% to be odorless for more than 50% of the
population using a triangular test and a
flavor as evaluated with a confidence of 80% to be flavorless for more than 50% of the
population using the triangular test.