Electrolytes
Educational ingredient reference — not medical advice.
Last updated: 2026-07-15 · Last reviewed: 2026-07-15
What it is
Electrolytes commonly refer to minerals such as sodium, potassium, magnesium, calcium, and chloride that play roles in normal body processes, including fluid balance and nerve and muscle function. According to NIH Office of Dietary Supplements materials, sodium, potassium, and magnesium are found in foods and may also appear in electrolyte drink mixes, powders, tablets, and beverages. Calcium and chloride appear on some — but not all — product labels as separate mg lines. Product labels vary widely in sodium level (from tens to thousands of mg per serving), potassium and magnesium amounts, sugar content, sweeteners, and serving format (stick, tablet, scoop). Comparing products requires checking how much of each mineral a serving provides, whether sugar or sweeteners are present, and whether third-party testing is verified or only claimed. SuppCheckr summarizes label and product-comparison information in electrolyte reviews, guides, and the electrolyte-supplements-compared table — not medical advice. SuppCheckr does not rank electrolyte products for dehydration treatment, illness recovery, hangover prevention, cramp prevention, athletic performance outcomes, pregnancy, children, or any medical condition.
Common forms on labels
Sodium (e.g., sodium chloride, sodium citrate, sodium bicarbonate), Potassium (e.g., potassium citrate, potassium chloride, potassium phosphate), Magnesium (e.g., magnesium malate, magnesium citrate, magnesium oxide), Calcium (e.g., calcium citrate, calcium lactate — when disclosed on labels), Chloride (e.g., from sodium chloride or potassium chloride — when disclosed in mg), Electrolyte drink mix (powder/stick), Electrolyte tablet, Ready-to-drink electrolyte beverage
Typical dosage context (not a personal recommendation)
NIH health-professional materials publish Adequate Intakes (AIs) and related guidance for sodium, potassium, and magnesium by age, sex, and life stage. Electrolyte drink mix serving sizes and mineral amounts per serving differ widely by brand and formula — from high-sodium, sugar-free sticks to sugar-containing hydration mixes. Dietary intake from food plus any supplemental or drink-mix intake should be considered together. This page does not prescribe a dose. Consult a qualified healthcare professional before starting or changing electrolyte supplements or high-sodium products, especially if pregnant, nursing, under 18, taking medication, managing blood pressure, kidney disease, heart disease, fluid restrictions, or a medical condition.
Safety context
According to NIH materials, high sodium intake may be a concern for some people, including those managing blood pressure, heart disease, or kidney disease. Some electrolyte drink mixes list 500–1,000 mg sodium per serving — far above lower-sodium daily-hydration formulas. High supplemental potassium may be inappropriate for some individuals, including those with impaired kidney function or taking certain medications. Electrolyte drink mixes, powders, and tablets are not a substitute for medical care, oral rehydration therapy, IV fluids, or treatment of dehydration, electrolyte imbalance, heat illness, vomiting, diarrhea, or illness-related fluid loss. Product labels, warnings, formulas, and sweeteners can change — verify the current label before use.
Interactions and medical questions
Sodium, potassium, and magnesium can interact with several medication classes, including diuretics, blood pressure medications, and other prescriptions. This summary is not a complete interaction list. Consult a qualified healthcare professional or pharmacist if you take prescription medications or manage kidney disease, heart disease, or a chronic medical condition.
Related product reviews
LMNT Zero-Sugar Electrolytes (Citrus Salt, 30 Stick Packs)
LMNT
Liquid I.V. Hydration Multiplier Lemon Lime (16 Stick Packs)
Liquid I.V.
Nuun Sport Lemon Lime (10 Tablets)
Nuun
Ultima Replenisher Lemonade (20 Stick Packs)
Ultima Replenisher
Thorne Catalyte Lemon Lime (30 Servings)
Thorne
Related reading
- Electrolytes supplements overview
- Compare electrolyte supplements
- How to choose a electrolytes supplement
- LMNT vs Liquid I.V.: Electrolyte Label Comparison
- How to Choose an Electrolyte Powder
- What Are Electrolytes?
- Sugar-Free vs Sugar Electrolytes: Label Differences
- Electrolyte Powder vs Tablets: Format Comparison
Sources
- Sodium — Health Professional Fact Sheet — NIH Office of Dietary Supplements (NIH)
- Potassium — Health Professional Fact Sheet — NIH Office of Dietary Supplements (NIH)
- Magnesium — Health Professional Fact Sheet — NIH Office of Dietary Supplements (NIH)
- FDA — Dietary Supplements — U.S. Food and Drug Administration (FDA)
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