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#6 in Minerals Third-Party Tested
Nuun Sport Electrolyte Tablets (4-Pack, 40 Servings)
by Nuun
"42,400+ reviews — the athlete's electrolyte tablet with 300mg sodium and only 15 calories"
Amazon Rating
4.6/5
Reviews
42,400+
Price Range
$22-28
Servings
40 servings
Non-GMOVeganGluten FreeInformed Sport
Our Editorial Rating
8.4
Very Good
Overview
Nuun Sport provides electrolyte replacement via effervescent tablets that dissolve in water. Each tablet delivers 300mg sodium, 150mg potassium, 25mg magnesium, and 13mg calcium with only 15 calories and 1g sugar. The 4-pack provides 40 servings across 4 flavor tubes. Nuun pioneered the effervescent electrolyte tablet category and is widely used by endurance athletes, runners, and cyclists. The portable tube format is ideal for gym bags and travel.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Sodium | 300 mg |
| Potassium | 150 mg |
| Magnesium | 25 mg |
| Calcium | 13 mg |
Pros & Cons
What We Like
- 42,400+ reviews, 4.6 stars
- Only 15 calories, 1g sugar
- Portable tube format
- 300mg sodium — good for athletes
- Effervescent — dissolves in water
What Could Be Better
- Lower electrolyte amounts vs powders
- 4 tubes = 40 servings
- Premium vs powder options
- Artificial sweeteners (stevia)
Who Is This For?
Best For
- Endurance athletes
- Low-calorie electrolyte needs
- Travel and portability
- Those who dislike sweet electrolyte drinks
Not Ideal For
- Those wanting high-dose electrolytes
- Budget electrolyte seekers
- Those avoiding stevia
Our Verdict
8.4/10 — Very Good
The portable electrolyte standard. Nuun pioneered effervescent electrolyte tablets for athletes. 15 calories and portable tubes make it the go-to for endurance sports.