Nuun Sport Electrolyte Drink Tablets
by Nuun
"Clean sport electrolyte tablets with 300mg sodium and zero sugar — just drop, dissolve, and drink"
Overview
Nuun Sport Electrolyte Drink Tablets are effervescent tablets that dissolve in water to create a clean, sugar-free electrolyte drink. Each tablet provides 300mg sodium, 150mg potassium, 25mg magnesium, and 13mg calcium — the four key electrolytes lost in sweat. Nuun pioneered the effervescent electrolyte tablet format and has become the go-to hydration brand for runners, cyclists, and endurance athletes. The tablets are portable, lightweight, and produce a lightly flavored, refreshing drink with only 15 calories and 1g of sugar. Available in multiple flavors including Citrus Fruit, Tropical, and Watermelon.
Key Ingredients
Pros & Cons
What We Like
- Clean, sugar-free electrolyte replacement
- Portable effervescent tablet format
- 30,000+ reviews
- Multiple refreshing flavors
- Only 15 calories per tablet
What Could Be Better
- 300mg sodium (moderate, not for heavy sweaters)
- Low magnesium and calcium
- Carbonated when first dissolved
- 40 tablets for $18-24 (not cheapest per serving)
Who Is This For?
Best For
- Runners and endurance athletes
- Those wanting sugar-free electrolytes
- Portable hydration for travel/gym
- Light to moderate sweaters
Not Ideal For
- Heavy sweaters (need more sodium)
- Those wanting comprehensive electrolyte doses
- Those who dislike carbonation
Our Verdict
Nuun Sport is the gold standard for portable, clean electrolyte replacement. The effervescent tablet format is genius for athletes on the go. While the electrolyte doses are moderate, they're appropriate for most recreational and competitive athletes during training.