Can You Take Caffeine and Potassium Together?
No documented interaction was identified between potassium and caffeine in the sources reviewed.
See the full Caffeine page and Potassium page for other reviewed interactions and reference information.
What the interaction means
MedlinePlus's caffeine page does not mention potassium. The NIH ODS potassium fact sheet does not name caffeine.
No documented interaction between Caffeine and Potassium 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 Caffeine's and Potassium's own current authoritative sources were checked, in both directions.
What the sources say
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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