TUESDAY, Dec. 10, 2013 (HealthDay News) -- People who take certain acid-reflux medications might have an increased risk of vitamin B-12 deficiency, according to new research.
Taking proton pump inhibitors (PPIs) to ease the symptoms of excess stomach acid for more than two years was linked to a 65 percent increase in the risk of vitamin B-12 deficiency. Commonly used PPI brands include Prilosec, Nexium and Prevacid.
https://www.webmd.com/heartburn-ger...ux-drugs-tied-to-lower-levels-of-vitamin-b-12
I've been on many GERD health discussion boards and many others have the same problem.