Gastric Hypochlorhydria and Achlorhydria in Older Adults
To the Editor.
—The article on gastric acidity in older adults by Dr Hurwitz and colleagues1 is of great interest. It is well known that hypochlorhydria does not often result in the colonization of the upper gastrointestinal tract with bacterial pathogens.2 However, hypochlorhydria due to atrophic gastritis can result in malabsorption of food-bound vitamin B12, and this continues to be a public health concern.3,4
We studied the prevalence of...