But just because your tongue appears swollen, it doesn’t necessarily mean that you have a B12 deficiency.
It could be caused by an allergic reaction, low iron levels, or even a cut or burn on your tongue.
In most cases, glossitis goes away by itself over time, and doesn’t require any treatment.
The condition is more likely to be caused by a B12 deficiency if it’s accompanied by any of the more common symptoms.
Source:Daily Express :: Health Feed