Glossary
Potassium
Updated February 28, 2026
Potassium helps maintain fluid balance and supports muscle and nerve function, working with sodium intake as part of overall electrolyte balance.
Guides
| Item | Detail |
|---|
| Adequate intake | ~2,600–3,400 mg per day depending on sex and size |
| Food sources | Potatoes, bananas, beans, yogurt, leafy greens |
| Balance | Higher potassium foods help counter high sodium meals |
Replacement timing and context
| Context | Use pattern |
|---|
| Heat and sweat | pair with hydration and sodium-aware recovery |
| Recovery days | include food sources across meals instead of one late hit |
| Low appetite blocks | keep intake in small, regular bites |
Symptom check
| Signal | Likely meaning |
|---|
| Muscle fatigue or cramps | possible electrolyte drift |
| Irregular heartbeat notes | seek immediate clinical follow-up if persistent |
| GI discomfort with diet changes | review total mineral and fiber balance |
Caution and escalation
| Trigger | Action |
|---|
| Repeated weakness with medical conditions | coordinate with clinician before high-dose changes |
| Kidney history or medication use | test with clinician before supplement shifts |
| Rapid intake spikes | reduce single-meal load and spread over day |
In practice, treat potassium as a daily micronutrients target while keeping an eye on sodium intake and overall electrolyte balance during hard training or heat.