Antacids are commonly used to neutralise the acid in the stomach, helping many individuals who have acid reflux. A new study suggests that using these medications for 2 years or more is linked to a deficiency of B12, which can have adverse effects on the nervous system.
http://www.medicalnewstoday.com/articles/270007.php
http://www.medicalnewstoday.com/articles/270007.php
