In one study US researchers found that over 30 percent of men and women past the age of 60 suffer from atrophic gastritis, a condition marked by little or no acid secretion. (8) A second study found that up to 40% of postmenopausal women have no basal gastric acid secretions. (9)
We know acid is needed to obtain nutrients but other signs of low acid include weak cracked fingernails, dilated capillairies in nose and cheeks and intestinal infections.
This article shows the conditions that are implicated with low stomach acid....including ours.