Gnarly Nutrition Hydrate
Competitive athletes who need NSF certification and zero-sugar clean ingredients
Nuun Sport Hydration
Active people who want ultra-portable, low-calorie electrolytes for everyday hydration
Score Comparison
Pricing & Features
Making Your Decision
When to Choose Gnarly Nutrition Hydrate
Competitive athletes who need NSF certification and zero-sugar clean ingredients
Gnarly Hydrate checks the boxes for competitive athletes: NSF Certified for Sport, zero sugar, monk fruit sweetened, and solid electrolyte ratios. The taste won't please everyone, but the clean formula and certification make it a strong choice for anyone subject to drug testing.
Strengths
- NSF Certified for Sport — safe for competitive athletes subject to drug testing
- Zero sugar with no artificial sweeteners — uses monk fruit extract
- Good electrolyte balance with 200mg sodium, 250mg potassium per serving
Limitations
- Monk fruit taste can be polarizing — some find it has a slight aftertaste
- Less widely available in retail stores compared to mainstream brands
- Resealable bag format can clump in humid conditions
When to Choose Nuun Sport Hydration
Active people who want ultra-portable, low-calorie electrolytes for everyday hydration
Nuun's effervescent tablet format is unmatched for convenience — drop one in your water bottle and go. The low sugar and calorie count make it ideal for daily use. The trade-off is lower electrolyte content per serving, making it better for light activity than extreme exertion.
Strengths
- Unique effervescent tablet format — just drop in water, no scooping or stirring
- Only 1g sugar and 15 calories per tablet — among the lightest options
- Compact tube is ultra-portable for hiking, travel, and gym bags
Limitations
- Lower electrolyte content per tablet (300mg sodium) than powder competitors
- Contains stevia leaf extract which some find has a lingering aftertaste
- Tablets can be slow to fully dissolve in cold water
