Can Low B12 Cause a Sour Taste in the Mouth?
•
3 min read
According to the National Institutes of Health, vitamin B12 deficiency can lead to a variety of oral issues, including an altered sense of taste. This phenomenon, known as dysgeusia, can manifest as a persistent, unpleasant flavor, such as a sour or metallic taste in the mouth. The connection lies in how low B12 affects nerve function and the health of the tongue, disrupting the way taste is perceived.
