Can You Take Caffeine and Potassium Together?
No documented interaction was identified between potassium and caffeine in the sources reviewed.
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 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 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.
Related interactions
- Caffeine and CalciumMonitor
- Caffeine and IronInsufficient evidence
- Caffeine and OmeprazoleInsufficient evidence
- Caffeine and SpironolactoneInsufficient evidence
- Caffeine and CreatineInformational
- Caffeine and MagnesiumInsufficient evidence
- Caffeine and CiprofloxacinMonitor
- Caffeine and Vitamin KInsufficient evidence
- Caffeine and LevothyroxineInsufficient evidence
- Caffeine and Vitamin B12Insufficient evidence
- Caffeine and CoQ10 (Coenzyme Q10)Insufficient evidence
- Caffeine and TurmericInsufficient evidence
- Caffeine and St. John's WortInsufficient evidence
- Caffeine and CopperInsufficient evidence
- Caffeine and ZincInsufficient evidence
- Caffeine and LisinoprilInsufficient evidence
- Caffeine and WarfarinUse caution
- Caffeine and MetforminInsufficient evidence
- Caffeine and MelatoninInsufficient evidence
- Caffeine and DoxycyclineInsufficient evidence
- Caffeine and ProbioticsInsufficient evidence
- Caffeine and SertralineInsufficient evidence
- Caffeine and AtorvastatinInsufficient evidence
- Caffeine and Vitamin DInsufficient evidence
- Potassium and CalciumInsufficient evidence
- Potassium and MagnesiumInsufficient evidence
- Potassium and IronInsufficient evidence
- Potassium and WarfarinInsufficient evidence
- Potassium and SpironolactoneAvoid combining
- Potassium and LisinoprilMonitor
- Potassium and TurmericInsufficient evidence
- Potassium and CiprofloxacinInsufficient evidence
- Potassium and CopperInsufficient evidence
- Potassium and CoQ10 (Coenzyme Q10)Insufficient evidence
- Potassium and St. John's WortInsufficient evidence
- Potassium and ZincInsufficient evidence
- Potassium and DoxycyclineInsufficient evidence
- Potassium and ProbioticsInsufficient evidence
- Potassium and MelatoninInsufficient evidence
- Potassium and MetforminInsufficient evidence
- Potassium and AtorvastatinInsufficient evidence
- Potassium and CreatineInsufficient evidence
- Potassium and Vitamin DInsufficient evidence
- Potassium and Vitamin KInsufficient evidence
- Potassium and LevothyroxineInsufficient evidence
- Potassium and SertralineInsufficient evidence
- Potassium and Vitamin B12Insufficient evidence
- Potassium and OmeprazoleMonitor