SLF Electrolyte Comparison · 2026
Nuun Sport Electrolyte Tablets
Everyday Hydration · Exercise & Workouts · Travel
Check Price at TargetRead full review ↗
Re-Lyte Kids
Hot-Weather Endurance · Everyday Hydration · Exercise & Workouts
Check Price at TargetRead full review ↗Re-Lyte Kids
Best overall data score for this matchup based on formula, rating, and intended use.
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At a Glance
A quick side-by-side look at nutrition and overall performance.
| Feature | Nuun Sport Electrolyte Tablets | Re-Lyte Kids | 🏆 Edge |
|---|---|---|---|
| Sodium | 300 mg | 340 mg | Re-Lyte Kids |
| Potassium | 150 mg | 150 mg | Tie |
| Magnesium | 17 mg | 25 mg | Re-Lyte Kids |
| Sugar | 1.0 g | 0.0 g | Nuun Sport Electrolyte Tablets |
| Calories | 15 | 0 | Nuun Sport Electrolyte Tablets |
| Sweetener | Stevia Leaf Extract | Rebaudioside A (Stevia Leaf Extract) | Preference |
| SLF rating | ★★★★★4.6/5 | ★★★★★4.7/5 | Re-Lyte Kids |
Owala 12oz Kids' Stainless Steel Straw Tumbler
A kid-friendly insulated tumbler that keeps water cold and makes everyday hydration easy. The 12 oz size, straw and spill-resistant design make it a great pick for school, sports and everyday use.
Shop Kids Tumblers at TargetFunctional Ingredients
Additional active or performance-oriented ingredients recorded in the SLF database.
Nuun Sport Electrolyte Tablets
- Electrolyte BlendSodium BicarbonatePotassium BicarbonateMagnesiumCalcium
Nuun Sport is one of the best electrolyte tablets for people who want convenient, low-sugar hydration. Its balanced formula works well for hiking, travel,…
Re-Lyte Kids
- Coconut Water Powder (65 mg)Redmond Real Salt Trace MineralsFruit and Vegetable Extracts for Color
Best for zero-sugar routine hydration, youth sports, travel, and warm-weather use.
Key Differences
The most meaningful data-backed differences in this matchup.
Re-Lyte Kids
Why it matters: Higher sodium can better replace larger sweat losses during prolonged exercise or heat.
Re-Lyte Kids
Why it matters: Lower sugar may suit people prioritizing reduced-sugar hydration.
Who Should Choose Each Product?
Use these guidelines to find the best fit for your hydration needs and lifestyle.
Choose Nuun Sport Electrolyte Tablets if…
- Everyday Hydration
- Exercise & Workouts
- Travel
- Daily Hydration
- Cycling
- Hiking
- Running
- Light Workouts
Nuun Sport is one of the best electrolyte tablets for people who want convenient, low-sugar hydration. Its balanced formula works well for hiking, travel, cycling, and everyday workouts, though athletes with heavy sweat loss may benefit from higher-sodium products like LMNT.
Choose Re-Lyte Kids if…
- Hot-Weather Endurance
- Everyday Hydration
- Exercise & Workouts
- Travel
- Heat & Outdoor Work
- Keto & Low-Carb
- Everyday Kids Hydrationyouth Sportshot Weathertravelfamilies Avoiding Added Sugar
- Kids
Best for zero-sugar routine hydration, youth sports, travel, and warm-weather use.
Pros and Considerations
Nuun Sport Electrolyte Tablets
✓ Strengths
- Moderate sodium level suits everyday hydration needs
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Contains 1.0 g sugar per serving
Re-Lyte Kids
✓ Strengths
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Re-Lyte Kids
SLF scoring considers nutrition, formula, certifications, rating, and intended use.
Why it earns the edge
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Fits keto and low-carbohydrate lifestyles
Choose Nuun Sport Electrolyte Tablets instead if you:
- Everyday Hydration
- Exercise & Workouts
- Travel
- Daily Hydration
Choose Your Electrolyte
Shop the product that best fits your needs. Amazon is shown first when available, with a direct brand option as the fallback.
Nuun Sport Electrolyte Tablets
Check Price at Target Re-Lyte Kids
Check Price at TargetFind the electrolyte that fits your needs
Explore the full database by activity, sodium level, sugar preference, goals, budget, and retailer.
Frequently Asked Questions
Data-backed answers based on the current SLF product records.
Which has more sodium?
Re-Lyte Kids contains 340 mg of sodium per serving, compared with 300 mg. Higher sodium may be more useful when replacing larger sweat losses during prolonged exercise or hot conditions.
Which has less sugar?
Nuun Sport Electrolyte Tablets has less sugar at 1.0 g per serving, versus 0.0 g. This may matter for people limiting added sugar.
What functional ingredients does each product include?
Nuun Sport Electrolyte Tablets lists Electrolyte BlendSodium BicarbonatePotassium BicarbonateMagnesiumCalcium. Re-Lyte Kids lists Coconut Water Powder (65 mg)Redmond Real Salt Trace MineralsFruit and Vegetable Extracts for Color. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
Re-Lyte Kids earns the higher SLF comparison score based on the available formula, rating, and intended-use data. Nuun Sport Electrolyte Tablets may still be the better fit when its specific use cases align more closely with your needs.
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Nutrition facts and availability can change. Verify the current label and purchase details with Target before purchasing. This comparison is informational and is not medical advice.