Klontz E et al
Furthermore, they propose an upper threshold for zinc intake, at 25 mg/day for adults, and 710 mg/day for children aged between 4 and 13 years, to prevent potential zinc toxicity
Public Health 19 (11), 6750
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Disease-associated hypercobalaminemia and the differential that changes management After intake and interference are excluded, persistent elevation can point toward hepatic, renal, hematologic, inflammatory, or malignant disease