Research
Micronutrients & recovery
Excessive zinc intake inhibits the absorption of copper and iron, potentially leading to copper deficiency and anaemia, respectively.
If you are supplementing with zinc, be aware that high doses can block copper and iron absorption. Monitor your levels and consider balancing your intake or spacing out supplements if taking high doses long-term.
GoodRefutesHIGH confidence
Excessive zinc intake can inhibit the absorption of copper and iron, leading to copper deficiency and anaemia, respectively.
Why this rating
Stated as a clear fact in the abstract and supported by general physiological knowledge cited in the review.
Source
Role of zinc in health and disease
Lucy I. Stiles et al. · Clinical and Experimental Medicine · 2024
DOI 10.1007/s10238-024-01302-6
narrative_reviewCited 224×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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