I was just reading a post I had printed out from a few years ago. I believe JeannieBe posted this, but I am not positive. It does, however, sound like something that would have interested her and she would pass on to us.
Anyway, in this post, she cites an article that talks about different meds and the effect they have on depleting nutrients from our bodies. It says "Ulcer medications (proton pump inhibitors, drugs with "prazole" suffix) may deplete Vitmain B12.
That might explain some things if you have symptoms of low B12 since starting a PPI.
Very interesting Susanne! l1wv