Electrolyte Balance
Optimal electrolyte levels for hydration and muscle function.
TL;DR
Electrolyte balance is primarily about sodium, potassium, magnesium, and fluid — most people need less sodium and more potassium and magnesium. Supplementation matters most for heavy sweaters, athletes, and low-carb dieters.
Why It Matters
Electrolytes govern fluid distribution, nerve conduction, and muscle contraction. Modern diets typically oversupply sodium and undersupply potassium and magnesium. Athletes, sauna users, low-carb and keto dieters (natriuresis), and those on diuretics have increased needs. Symptoms of imbalance include cramps, fatigue, headache, and palpitations.
How to Measure
Track cramps, energy, and heat tolerance; serum electrolytes via clinician if symptoms persist or diuretics are used.
Biomarkers
Optimization Protocol
Baseline: food-first potassium (potatoes, legumes, fruit, greens) and magnesium (nuts, seeds, leafy greens). For heavy sweaters and athletes: sodium 500–1,000 mg per hour of intense sweaty exercise with fluids; magnesium 200–400 mg/day. Keto and low-carb: add 2–3 g/day sodium plus 1 g/day potassium (e.g., lite salt) unless hypertensive.
Lifestyle Levers
- •Potassium-rich whole foods
- •Sodium matched to sweat losses
- •Adequate fluid intake
- •Alcohol moderation (magnesium wasting)
Supporting Supplements
Supporting Research
Frequently Asked Questions
Typical Timeframe
Acute correction within days; chronic balance is dietary.
Research Summary
My Notes
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This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.