What vitamin deficiency is mixed connective tissue disease?
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5 min read
According to research published in *Arthritis Research & Therapy*, patients with undifferentiated connective tissue disease (UCTD) who progress to well-defined connective tissue diseases (CTDs), including mixed connective tissue disease (MCTD), often have significantly lower levels of vitamin D. This suggests a strong association between vitamin D deficiency and mixed connective tissue disease.
