Nutrition: What deficiency causes black spots on tongue and how to address it?
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5 min read
Approximately one in 20 adults over the age of 60 may have a vitamin B12 deficiency, a condition that can, in severe cases, be a contributing factor to the appearance of black spots on the tongue. While this symptom can be alarming, understanding **what deficiency causes black spots on tongue** and other potential factors is the first step toward proper diagnosis and effective treatment.
