Just wanted to comment on this statement. I just did a 2 week course of this and it didn't work at all. breath test metrics stayed the same on second test.
I basically found out my stomach acid is extremely low, I am on 5 hcl betaine pills and I dont feel any warming in my gut yet.
Anyone solve for methane based sibo yet?
Sorry to hear it, man.
Don't know how to treat methane-based SIBO. I strongly suspect that like you, I have low stomach acid.