SLF Electrolyte Comparison · 2026
LMNT Electrolyte Drink Mix
Hot-Weather Endurance · Endurance Athletes · Everyday Hydration
Check Price at WalmartRead full review ↗
Zarbee's Kids Hydration
Hot-Weather Endurance · Everyday Hydration · Recovery
Check Price at WalmartRead full review ↗LMNT Electrolyte Drink Mix
Best overall data score for this matchup based on formula, value, rating, and intended use.
Explore Both Brands
Continue to the full Brand Hubs for products, flavors, buying guides, and every published comparison.
At a Glance
A quick side-by-side look at nutrition, value, and overall performance.
| Feature | LMNT Electrolyte Drink Mix | Zarbee's Kids Hydration | 🏆 Edge |
|---|---|---|---|
| Sodium | 1,000 mg | 160 mg | LMNT Electrolyte Drink Mix |
| Potassium | 200 mg | 90 mg | LMNT Electrolyte Drink Mix |
| Magnesium | 60 mg | Not listed | LMNT Electrolyte Drink Mix |
| Sugar | 0.0 g | 2.0 g | Zarbee's Kids Hydration |
| Calories | 0 | 10 | Zarbee's Kids Hydration |
| Sweetener | Stevia Leaf Extract | Dextrose, Monk Fruit Juice Concentrate, and Reb M | Preference |
| Cost per serving | $1.43 | $1.99 | LMNT Electrolyte Drink Mix |
| SLF rating | ★★★★★4.8/5 | ★★★★☆4.4/5 | LMNT Electrolyte Drink Mix |
Mainstays Kids Stainless Steel Tumbler 20 oz
Keep water and electrolyte drinks cold for hours with the Mainstays Kids 20 oz Stainless Steel Tumbler. Double-wall vacuum insulation, a reusable straw, and a kid-friendly design make it perfect for school, sports, travel, and everyday hydration. Available at Walmart.
Functional Ingredients
Additional active or performance-oriented ingredients recorded in the SLF database.
LMNT Electrolyte Drink Mix
- Sodium ChloridePotassium ChlorideMagnesium MalateStevia Leaf ExtractCitric Acid
LMNT earns our highest recommendation for people who need maximum sodium replacement without added sugar. Its 1,000 mg sodium formula makes it one of…
Zarbee's Kids Hydration
- Gum Acacia Prebiotic
- Zinc Gluconate
- Dextrose for glucose-assisted hydration
Best for families needing a portable, ready-to-drink hydration pouch for children age 1 and older.
Key Differences
The most meaningful data-backed differences in this matchup.
LMNT Electrolyte Drink Mix
Why it matters: Higher sodium can better replace larger sweat losses during prolonged exercise or heat.
LMNT Electrolyte Drink Mix
Why it matters: Lower sugar may suit people prioritizing reduced-sugar hydration.
LMNT Electrolyte Drink Mix
Why it matters: A lower cost per serving can make frequent use more practical.
LMNT Electrolyte Drink Mix
Why it matters: Potassium supports fluid balance and normal muscle function.
Zarbee's Kids Hydration
Why it matters: A broader functional-ingredient profile may appeal to users seeking vitamins or carbohydrate-assisted hydration.
Who Should Choose Each Product?
Use these guidelines to find the best fit for your hydration needs and lifestyle.
Choose LMNT Electrolyte Drink Mix if…
- Hot-Weather Endurance
- Endurance Athletes
- Everyday Hydration
- Exercise & Workouts
- Recovery
- Travel
- Heat & Outdoor Work
- Keto & Low-Carb
LMNT earns our highest recommendation for people who need maximum sodium replacement without added sugar. Its 1,000 mg sodium formula makes it one of the strongest choices for keto and low-carb lifestyles, endurance athletes, heavy sweaters, and people who practice intermittent fasting. If your hydration needs are more casual, you're limiting sodium intake, or you prefer a sweeter drink, another electrolyte mix may be a better everyday option.
Choose Zarbee's Kids Hydration if…
- Hot-Weather Endurance
- Everyday Hydration
- Recovery
- Travel
- Heat & Outdoor Work
- Mild To Moderate Dehydration
- Illness Recovery
- Children Ages 1 And Older
Best for families needing a portable, ready-to-drink hydration pouch for children age 1 and older.
Pros and Considerations
LMNT Electrolyte Drink Mix
✓ Strengths
- Very high sodium supports heavy sweating and demanding endurance use
- Sugar-free formula
- Provides meaningful potassium
- Includes a useful amount of magnesium
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Zarbee's Kids Hydration
✓ Strengths
- Moderate sodium level suits everyday hydration needs
● Keep in Mind
- Contains 2.0 g sugar per serving
- Magnesium amount is not disclosed in the current SLF record
- Premium cost per serving
LMNT Electrolyte Drink Mix
SLF scoring considers nutrition, formula, price, certifications, intended use, and value.
Why it earns the edge
- Very high sodium supports heavy sweating and demanding endurance use
- Sugar-free formula
- Provides meaningful potassium
- Includes a useful amount of magnesium
Choose Zarbee's Kids Hydration instead if you:
- Hot-Weather Endurance
- Everyday Hydration
- Recovery
- Travel
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.
LMNT Electrolyte Drink Mix
Check Price at Walmart Zarbee's Kids Hydration
Check Price at WalmartFind 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?
LMNT Electrolyte Drink Mix contains 1,000 mg of sodium per serving, compared with 160 mg. Higher sodium may be more useful when replacing larger sweat losses during prolonged exercise or hot conditions.
Which has less sugar?
Zarbee's Kids Hydration has less sugar at 2.0 g per serving, versus 0.0 g. This may matter for people limiting added sugar.
Which is less expensive per serving?
LMNT Electrolyte Drink Mix is currently less expensive at $1.43 per serving, compared with $1.99. Pricing can change by retailer and package size.
What functional ingredients does each product include?
LMNT Electrolyte Drink Mix lists Sodium ChloridePotassium ChlorideMagnesium MalateStevia Leaf ExtractCitric Acid. Zarbee's Kids Hydration lists Gum Acacia Prebiotic, Zinc Gluconate, Dextrose for glucose-assisted hydration. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
LMNT Electrolyte Drink Mix earns the higher SLF comparison score based on the available formula, value, rating, and intended-use data. Zarbee's Kids Hydration may still be the better fit when its specific use cases align more closely with your needs.
Popular Walmart Comparisons
Relevant brand matchups ranked by shopper interest and shown only for Walmart.
Nutrition facts, pricing, and availability can change. Verify the current label before purchasing. This comparison is informational and is not medical advice.