Key Benefits
Potential Risks
Dosage Guide
For athletes: 500–1,000 mg sodium per hour of intense exercise. For keto/low-carb: 2,000–3,000 mg extra sodium + 1,000–3,000 mg potassium daily. For general hydration: standard electrolyte drink as needed. Magnesium: 200–400 mg. Potassium: 1,000–3,500 mg (diet + supplement).
Warnings
- Kidney disease significantly changes electrolyte needs — require medical supervision
- Don't megadose potassium supplements without medical guidance — cardiac risk
When to Take
Best Time
During and after exercise; morning on keto/low-carb diets
With Food?
Can take on empty stomach
Spacing
Pre-hydrate 30–60 minutes before prolonged exercise. Consume during activity for efforts over 90 minutes. Replenish within 30–60 minutes post-exercise.
Available Forms
Electrolyte Powder (sachets)
excellentMixed with water for rapid absorption. Best for exercise performance and active electrolyte replenishment.
Electrolyte Tablets/Capsules
goodConvenient for travel and on-the-go use. Slower release than powder but practical.
Sports Drinks (Gatorade, etc.)
goodContain electrolytes + glucose for glycogen sparing. High sugar — not ideal for daily use or low-carb dieters.
Coconut Water
goodNatural source of potassium and some sodium. Lower sodium than ideal for heavy sweaters.
What to Pair With Electrolytes
Pairs Well With
Magnesium Glycinate
Magnesium is a key electrolyte often missing from basic electrolyte formulas — add separately
Creatine
Electrolytes support creatine's osmotic function in muscle cells and improve exercise performance together
Vitamin B Complex
B vitamins support energy metabolism that's enhanced by proper electrolyte balance
Use Caution With
Research on Electrolytes
Frequently Asked Questions About Electrolytes
Do I need electrolytes if I'm not an athlete?
Most sedentary people eating a balanced diet get enough electrolytes from food. However, specific situations warrant supplementation: low-carb or ketogenic diets (dramatically increase sodium and potassium excretion), high heat environments with sweating, gastrointestinal illness (vomiting and diarrhea deplete electrolytes rapidly), heavy alcohol use (alcohol is a diuretic that depletes electrolytes), taking diuretic medications, and prolonged fasting. The classic signal of electrolyte imbalance includes headache, fatigue, muscle cramps, brain fog, and dizziness — symptoms that many people attribute to other causes but resolve quickly with electrolyte supplementation.
What electrolytes do I need on keto?
Keto dramatically increases electrolyte requirements, which is why 'keto flu' happens. When you cut carbohydrates, insulin drops, and your kidneys begin excreting more sodium. As sodium leaves, water follows, taking potassium and magnesium with it. The typical keto electrolyte targets: sodium 3,000–5,000 mg/day (significantly above standard recommendations), potassium 3,500–4,700 mg/day (mostly from food like avocados, leafy greens, and meat), and magnesium 400–500 mg/day. Many keto dieters find that a quality electrolyte supplement taken in the morning and before workouts eliminates most keto flu symptoms within 1–2 days.
What's the difference between electrolytes and hydration?
Hydration refers specifically to water content in your body. Electrolytes are the dissolved minerals that govern HOW that water is distributed across cells, blood, and tissues. You can be well-hydrated but still electrolyte-depleted — this actually causes hyponatremia, a dangerous condition where drinking too much plain water dilutes blood sodium to dangerously low levels, causing confusion, seizures, and in extreme cases, brain herniation. Proper hydration requires both adequate water and adequate electrolytes to maintain the right concentration gradient. This is why marathon runners who drink excessive plain water without sodium replacement are at risk — plain water alone isn't enough during prolonged exertion.