Serum levels of zinc, folate, and vitamin B12 in healthy children aged 3-12 months: Is routine screening necessary?

In conclusion, we do not recommend routine screening for zinc, folate, and vitamin B12 levels in children under 12 months of age without active issues or chronic diseases due to the associated costs. We propose that evaluating serum levels of zinc, folate, and vitamin B12 is a more appropriate clinical approach in children at risk for micronutrient deficiencies and in selected patient groups.