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Can you take vitamin A and zinc at the same time? 

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Combined short-term zinc supplementation and a single dose of vitamin A has no significant effects on weight and length increments in children over a 6-mo period.
Addition of zinc to vitamin A might result in enhanced growth.
The results of this study agree with previous observations of a metabolic interaction between zinc and vitamin A and suggest an interaction between iron and vitamin A metabolism.
Zinc deficiency may indirectly influence the metabolism of Vitamin A via reduction of the levels of circulating proteins.
The results show a significant physiological interaction between dietary vitamin E and zinc.
Addition of zinc to low-dose vitamin A in this study did not improve the vitamin A status of children and cannot explain morbidity effects of the intervention.
Vitamin A and zinc have more heterogeneous effects in different subgroups of children.

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