Right berberine is in Golden Seal but also other herbs like barberry exudes berberine and this is the plant derivative that I used in my berberine treatment for SIBO-C; I got it from Thorne Research. I’ve read Golden Seal was good for the bladder though!
Interesting comment about the mag citrate because I do think it makes me more gassy and definitely thirsty!
Also I think its okay to have “some” gas out the bowel area just not out the mouth. LOL