Best Electrolyte Tablet
Nuun Sport Electrolyte Tablets
$8
FormEffervescent tablet
Sodium300mg per serving
Calories15
CarbohydrateMinimal
PackagingTube of 10
Price$8
TrailCraft score 9.2/10
Read Full Review →Best Drink Mix
Skratch Labs Sport Hydration Mix
$20
FormPowder
Sodium380mg per serving
Calories80
Carbohydrate20g
PackagingBag or single-serve
Price$20
TrailCraft score 8.9/10
Read Full Review →
Bottom line: Nuun is a zero-calorie tablet that replaces electrolytes and nothing else — convenient, cheap, and the right choice if you are eating normally. Skratch adds carbohydrate, which both fuels effort and improves how quickly your body absorbs the fluid. Short days: Nuun. Long hot efforts: Skratch.
Head-to-head differences
Sodium
Nuun Sport Electrolyte Tablets300mg per serving
Skratch Labs Sport Hydration Mix380mg per serving
Skratch wins marginally on sodium.
Carbohydrate
Nuun Sport Electrolyte TabletsMinimal — hydration only
Skratch Labs Sport Hydration Mix20g — fuels effort and aids fluid absorption
Skratch wins for long efforts; Nuun wins if you do not want the calories.
Convenience
Nuun Sport Electrolyte TabletsTablets drop into any bottle, tube fits a hipbelt pocket
Skratch Labs Sport Hydration MixPowder needs measuring or single-serve packets
Nuun wins.
Cost per serving
Nuun Sport Electrolyte TabletsRoughly $0.80
Skratch Labs Sport Hydration MixRoughly $1.30
Nuun wins.
Choose the Nuun Sport Electrolyte Tablets if:
- →You eat regularly on trail and need salt, not fuel
- →Convenience and cost matter most
- →You do not want extra calories in your water
Choose the Skratch Labs Sport Hydration Mix if:
- →Long hot days or sustained hard effort
- →You want the fluid absorbed faster
- →Fuel from your drink suits how you eat on trail
See all Best Electrolytes for Hiking reviews
Full rankings, specs, and scores for every product in this category.
View Full Category →Common Questions
Why does carbohydrate help absorption?
Sodium and glucose are absorbed together in the small intestine, and that co-transport pulls water across with them. It is the same principle behind oral rehydration solutions.
Do I need electrolytes on every hike?
No. Short cool hikes for someone eating normally rarely require supplementation. They matter most on long hot days and consecutive days of effort.
Can I take too much?
Yes — excessive sodium without adequate fluid causes its own problems. If you have blood pressure or kidney conditions, or find yourself relying on supplements to feel normal, talk to a doctor rather than self-managing.