i have taken up to 19 324 mg betaine hcl pills at one meal thats 6156mgs...and i needed every bit of it.
getting my hcl to a sufficient level, along with avoiding foods i am intolerant to was the most important part of my healing.
with betaine hcl you have to be careful, it can burn you, and that is why you only increase by one pill each meal, until you reach your threshold and decrease by one pill every meal until you do not need any more.
you need to be avoiding foods you are intolerant to while using betaine as these foods will mess up your digestion mechanism.
some say that bitters work as well as betaine hcl, i now take bitters because i no longer need the strength of HCl, but i got where i am because of betaine, and i beleive it is safe as anything if used properly, my ND concurs
there is a whole thread of information here:
i linked you to my indepth post: