Potassium
Vitamins & MineralsCAS: 7440-09-7
This is what the ingredient is.
Potassium is an essential mineral electrolyte important for heart, muscle, and nerve function.
Here is why it shows up on the label.
It works as a nutrient and salt substitute. Found in many foods; added to some low-sodium products.
Here is what food agencies say.
US agencies treat it as an essential nutrient. No UL established but caution with supplements.
Here is what research has found.
Essential for blood pressure regulation. Most people don't get enough from diet.
Here are a few things worth knowing.
High supplemental doses can cause dangerous heart arrhythmias, especially with kidney disease. Food sources safe.
Sources
- FDA
- NIH ODS
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.
v1.0Updated 9/12/2026