The parietal cells of the stomach produce hydrochloric acid (HCl) which should be strong enough to aid the digestion and absorption of protein and minerals. HCl is also needed for absorption of vitamin B12, folic acid, and for the stimulation of gut hormones that trigger the pancreas and gall bladder to release their secretions. The acid should also kill excessive bacteria, preventing bacterial overgrowth.
Adverse health effects can occur when the stomach either over or under produces acid….