Last update Sept. 25, 2023
Very Low Risk
Zinc in systemic administration (oral or intravenous)
Zinc is used to treat zinc deficiency, Wilson's disease and acrodermatitis enteropathica. In deficiency states and acrodermatitis, zinc sulfate, gluconate or citrate (less frequently zinc oxide) are used orally, and zinc chloride or zinc sulfate are used intravenously. For Wilson's disease, zinc acetate is used orally as an inhibitor of copper absorption.
Zinc (Zn) is an essential element of nutrition. It is present in many foods. The daily needs of Zn are 8 to 15 mg (Hall Moran 2010) and depend on the daily intake of phytates. In nursing mothers they are 11 mg for low intakes of phytate (≤ 330 mg/day) and 14 mg/day for high intakes (≥ 990 mg/day) of phytate. (Haase 2020)
The average concentration of Zn in colostrum is 4 to 10 mg/L, subsequently decreasing to 1 - 2 mg/L in mature milk, and is higher in cases of prematurity (Lastre 2020, Trinta 2020, Suarez 2019, Dórea 2012, Hannan 2005, Picciano 1976) and is independent of plasma levels and daily maternal intake (Hannan 2009, Chierici 1999, Krebs 1995, Moser 1990), even with high doses of zinc used in Wilson's disease. (Isagawa 2020)
Zn intervenes in the process of regulation of lactation (Lee 2016). Pasteurization of breast milk does not affect the concentration of Zn or other trace elements. (Mohd-Taufek 2016)
The intestinal absorption of zinc almost doubles during pregnancy and lactation. (Fung 1997).
Infant zinc levels depend on zinc levels in breast milk. (Dumrongwongsiri 2015)
With a varied and balanced diet, mineral supplements are not necessary. Excess ingestion of zinc can lead to gastric, intestinal and pancytopenia problems. (Irving 2003)
Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.
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e-lactancia is a resource recommended by Academy of Breastfeeding Medicine - 2012 of United States of America
Would you like to recommend the use of e-lactancia? Write to us at corporate mail of APILAM