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Nuun Zero Sugar Electrolyte Tablets vs. LMNT Sparkling Electrolyte Drink

electrolyteshydrationendurancesupplements

Real product data from both. Which one earns its place in your gym?

The verdict

Nuun for daily light-moderate hydration at a lower sodium dose. LMNT for serious heat, long endurance, or keto-flush recovery at 1,000mg sodium per serving.

These two electrolyte formulas target different bodies and different training. Nuun's effervescent tablet delivers ~300mg sodium per serving — right-sized for daily hydration, moderate training, and users who don't want the salt hit. LMNT's sparkling drink delivers ~1,000mg sodium per serving, formulated specifically for endurance athletes, hot-climate trainees, and keto-diet users whose low-carb intake flushes sodium faster than normal. The 3x sodium difference isn't a taste distinction; it's a product-category distinction. Pick based on your actual sodium loss rate.

Pick Nuun Zero Sugar Electrolyte Tablets when you're training under 90 minutes, not in extreme heat, and not on keto. Nuun's moderate dose matches moderate sodium loss and avoids over-sodium-ing someone who doesn't need it.

Pick LMNT Sparkling Electrolyte Drink when you train 2+ hours, train in heat, sweat heavily, follow keto/low-carb, or are recovering from illness or heat exposure. LMNT's high-dose formulation is the right tool for real sodium depletion.

Top pick
Nuun Zero Sugar Electrolyte Tablets
Nuun

Nuun Zero Sugar Electrolyte Tablets

★★★★★ 4.5 (541)
$17.11
Also strong
LMNT Sparkling Electrolyte Drink

LMNT Sparkling Electrolyte Drink

★★★★★ 4.6 (179)
$30.99

Which one fits you?

Choose Nuun Zero Sugar Electrolyte Tablets if
  • You train 45-90 minutes at moderate intensity in normal climate conditions.
  • You eat a standard diet with adequate sodium from food.
  • You want a zero-sugar option that hydrates without caloric intake.
  • You prefer tablet format over powder or sparkling beverage.
Choose LMNT Sparkling Electrolyte Drink if
  • You train 2+ hours, especially in heat or humidity.
  • You follow keto, carnivore, or low-carb diet that flushes sodium.
  • You're a salty sweater (visible salt crust on clothing after training).
  • You've cramped during endurance events and suspect sodium depletion.

Head-to-head specs

Spec Nuun Zero Sugar Electrolyte Tablets LMNT Sparkling Electrolyte Drink
Price$17.11$30.99
BrandNuun
Amazon rating4.5 out of 5 stars4.6 out of 5 stars
Reviews541179
Weight0.2 Pounds6.01 Kilograms

Feature highlights, side by side

Nuun Zero Sugar Electrolyte Tablets
  • Zero Sugar Electrolytes
    Nuun Zero Sugar Hydration is an effervescent tablet for everyday hydration and water enhancement, made with essential electrolytes to keep you going and zero sugar to hold you back (1)
  • Fresh New Look
    Nuun Daily Hydration Tablets are now Nuun Zero Sugar; the same great no sugar electrolytes you love have a new name and refreshed packaging (1)
  • 5 Everyday Electrolytes
    These Nuun electrolyte tablets provide optimized quantities of Sodium (200 mg), Potassium (125 mg), Chloride (75 mg), Calcium (30 mg) and Magnesium (20 mg) to keep you hydrated during light movement or rest
  • Vegan, Non-Gmo & No Sugar
    These electrolyte tablets are made with clean*, plant-based ingredients and contain zero sugar for smart sipping all day, every day (1)
LMNT Sparkling Electrolyte Drink
  • Lmnt Sparkling Electrolyte Water
    No Sugar. No Caffeine. Nothing Dodgy All Electrolytes — for those who work, for those who train, and for those who simply want to feel and perform at their best.
  • More Salt, Not Less
    A growing body of research reveals that optimal health outcomes occur at sodium levels 2-3x government recommendations. That’s why we say, More Salt, Not Less.
  • Our Formulation
    Each can contains 1000 mg sodium, 200 mg potassium, 60 mg magnesium — a truly meaningful serving of electrolytes in a science-backed ratio.
  • Feel the Difference
    All-day energy starts with optimal hydration. More energy. No brain fog or cramps. You feel the difference when you get it right.
Ready to buy?

Pick your winner and go