Potassium: Fact Sheet for Health Professionals
National Institutes of Health Office of Dietary Supplements
Published in NIH Office of Dietary Supplements
Methodology
Evidence review of potassium requirements, dietary sources, health effects, deficiency and supplement safety
Key Findings
Most adults consume less potassium than recommended; over-the-counter supplements are generally limited to 99 mg per serving and high doses can cause hyperkalemia in kidney disease
Conclusions
Increasing dietary potassium is preferred to supplementation, which carries hyperkalemia risk in susceptible people
Limitations
Evidence summary rather than primary research
Supplements Studied
Most adults consume less potassium than recommended; over-the-counter supplements are generally limited to 99 mg per serving and high doses can cause hyperkalemia in kidney disease
Study Details
Access Study
This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.