Hi,
One of my first symptoms to show was the development of splits in my tongue(fissured tongue). I was told by my dentist that this was nothing to be worried about and was related to a condition called Geographic Tongue. GPs never commented on ssplits in tongue although I mentioned it to them.
Came across this piece of research recently ....B12 levels were lower in the the group compared to the control group. I still think that B12 deficiency can trigger fissured tongue.
ncbi.nlm.nih.gov/pubmed/348...
Old HU threads about B12 defic and tongues
healthunlocked.com/pasoc/po...
I'd be interested in case anyone else finds any research that links B12 deficiency with fissured/geographic tongue.