5 Reasons You Get a Metallic Taste in Your Mouth (And How to Avoid It) Why do I have the taste of metal in my mouth? Doctor explains 6 potential causes Metallic Taste in Mouth: Causes, Misconceptions, Treatment, and More Is It True That Ozempic Makes Your Mouth Taste Metallic? Vitamin B12 is essential for healthy oral tissues. Its deficiency can affect the mouth early.., Oral effects , red,smooth,painful tongue(glossitis), recurrent mouth ulcers , burning mouth