Can I Take These?

Can You Take Caffeine and Magnesium Together?

No documented interaction was identified between caffeine and magnesium in the sources reviewed.

No documented interaction identifiedEvidence: Moderate

See the full Caffeine page and Magnesium page for other reviewed interactions and reference information.

What the interaction means

MedlinePlus's caffeine page does not mention magnesium. Magnesium's own established interactions-section record does not name caffeine.

No documented interaction between Caffeine and Magnesium 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' current sources were checked directly, in both directions.

What the sources say

Magnesium — Consumer — NIH Office of Dietary SupplementsCaffeine — MedlinePlus, U.S. National Library of Medicine

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.

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