Can I Take These?

Can You Take Calcium and Zinc Together?

No documented interaction was identified between calcium and zinc in the sources reviewed.

No documented interaction identifiedEvidence: Moderate

See the full Calcium page and Zinc page for other reviewed interactions and reference information.

What the interaction means

The NIH Office of Dietary Supplements' zinc fact sheet mentions calcium only in a product-formulation context (zinc supplements are sometimes combined with calcium or magnesium as ingredients), not as a documented interaction; its actual interactions section names quinolone and tetracycline antibiotics, penicillamine, and thiazide diuretics, not calcium. The calcium fact sheet's interactions section does not name zinc.

No documented interaction between Calcium and Zinc was identified in the authoritative sources reviewed. This is not a guarantee that no interaction exists for every dose, formulation, or individual -- it means the sources checked did not document one.

Practical context

Both substances' own current NIH fact sheets were checked directly and neither documents an interaction between them.

What the sources say

Calcium — Consumer — NIH Office of Dietary SupplementsZinc — Consumer — NIH Office of Dietary Supplements

Last reviewed 2026-08-23

Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.

Related guides

Related interactions