Cracked Tongue: What Deficiency Is a Cracked Tongue?
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4 min read
According to the American Academy of Oral Medicine, a fissured tongue—more commonly known as a cracked tongue—appears in about five percent of the U.S. population, though the exact cause is not always clear. While often harmless and sometimes hereditary, a cracked tongue can also be a symptom of underlying health issues, with nutritional deficiencies being a key possibility.