The American journal of clinical nutrition
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Little is known regarding vitamin D deficiency (VDD) in African populations and in tuberculosis (TB) patients. VDD has been shown to be associated with TB. ⋯ Hypovitaminosis D was highly prevalent in TB patients and in healthy controls living at 12 degrees N; severe VDD was rare in TB patients. The finding indicates that the serum 25(OH)D(3) concentration is associated with TB infection, but whether this role is a symptom or is causal was not established.