Some of the disasterous things that can happen with low stomach acid, most of them figure in CFS symptoms.
Although this is showing depletion of stomach acid by PPI's , low levels of stomach acid can caused by stress and age. By the time an average person is 70 their stomach acid level is only 20% of a 20 year old.
Reproduced from http://refluxdefense.com/heartburn_GERD_articles/side-effects-antacids-and-acid-blockers.html.
Although this is showing depletion of stomach acid by PPI's , low levels of stomach acid can caused by stress and age. By the time an average person is 70 their stomach acid level is only 20% of a 20 year old.
Reproduced from http://refluxdefense.com/heartburn_GERD_articles/side-effects-antacids-and-acid-blockers.html.