Nuun Endurance
Higher sodium and added carbohydrate than Nuun Sport, positioned for longer endurance sessions
Research last verified August 18, 2026
Pending
Score Pending
A numerical Ethos Score requires structured evidence, formula, and sufficient coverage. Missing data is never converted to a pass or a zero.
The Takeaway
A higher-sodium, carbohydrate-added electrolyte mix built for endurance sessions over 90 minutes.
Best For
- • Long-duration endurance exercise
Watch Out For
- • Contains 15g of sugar per serving, more than Nuun Sport
Why this score
Each dimension stays pending until the exact structured inputs needed to score it are available.
Sodium and carbohydrate combination is consistent with sports-nutrition guidance for exercise beyond 90 minutes
Higher sodium and added carbohydrate than Nuun Sport, positioned for longer endurance sessions
No Product-Specific Data Found
"No Product-Specific Data Found" PFAS: No Product-Specific Data Found.
Verified price is approximately $1.79 per labeled serving.
Real Cost
One-time purchase
One-time purchase
$21.50
Cost per prepared serving: $1.79
About $53.70 for 30 days · $653.35 per year
Check PriceFormula
Key Active Ingredients
Sodium
Potassium
Magnesium
Chloride
Carbohydrate (sugar)
Testing & Transparency
Independent certification
No public certification verification is listed
Public test source
No product-specific test source is linked
No Product-Specific Data Found
Toxin & Forever Chemical Report
This section shows product-specific contaminant and PFAS (forever chemical) test results where available. “No Product-Specific Data Found” is not a purity pass — it means no public test result was located for this exact product. Organic, non-GMO, and similar certifications are agricultural standards and do not verify contaminant levels.
"No Product-Specific Data Found" PFAS: No Product-Specific Data Found.
Evidence
Evidence & dose context
StrongSodium and carbohydrate combination is consistent with sports-nutrition guidance for exercise beyond 90 minutes