---
title: "What Is Potassium? Heat Stress and Hydration Glossary"
description: "Potassium is an electrolyte found in all body tissues. It helps cells, the heart and muscles work properly and helps keep fluid inside cells."
url: https://jmarsolutions.multisites.ai/glossary/potassium
publisher: JMAR Solutions
phone: +1-214-632-7780
quote: https://jmarsolutions.multisites.ai/contact
---

Hydration science

# Potassium

Potassium is an electrolyte found in all body tissues. It helps cells, the heart and muscles work properly and helps keep fluid inside cells.

Potassium is an electrolyte and an essential nutrient. The NIH Office of Dietary Supplements says it is present in all body tissues. Cells need it for normal function because it helps maintain fluid volume inside cells. MedlinePlus adds that it helps your cells, heart and muscles work properly.

Together with [magnesium](https://jmarsolutions.multisites.ai/glossary/magnesium), it is part of the electrolyte mix in many hydration products. Rapid Restoration Drops list potassium (potassium chloride) at 300 mg per 1 tsp serving on the label. Learn more in our [electrolytes 101 guide](https://jmarsolutions.multisites.ai/guides/electrolytes-101) and on the [liquid electrolyte drops](https://jmarsolutions.multisites.ai/liquid-electrolyte-drops) page.

[From JMAR SolutionsHydration programs and toolbox talks for crews](https://jmarsolutions.multisites.ai/hydration-programs)

## Related terms

-   [Electrolyte](https://jmarsolutions.multisites.ai/glossary/electrolyte)
-   [Sodium](https://jmarsolutions.multisites.ai/glossary/sodium)
-   [Magnesium](https://jmarsolutions.multisites.ai/glossary/magnesium)
-   [Hydration](https://jmarsolutions.multisites.ai/glossary/hydration)

## Sources

1.  [NIH Office of Dietary Supplements: Potassium Health Professional Fact Sheet](https://ods.od.nih.gov/factsheets/Potassium-HealthProfessional/)
2.  [MedlinePlus: Electrolyte Panel](https://medlineplus.gov/lab-tests/electrolyte-panel/)

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## See it on your crew in 15 minutes

Jennifer walks your safety team through the drops, the protocol and the numbers on a short live call.

[Book a 15-minute demo](https://calendly.com/jen-jmarsolutions/15-min-meeting)