LMNT vs Nuun Electrolytes
Two popular electrolyte supplements with very different philosophies. Here is how they compare.
LMNT and Nuun are two of the most popular electrolyte supplements on the market, but they take fundamentally different approaches to hydration. LMNT is a high-sodium, zero-sugar powder designed for people following low-carb or ketogenic diets, athletes in extreme conditions, and anyone who sweats heavily. Nuun is a low-calorie effervescent tablet with a more moderate electrolyte profile aimed at everyday athletes and fitness enthusiasts. The right choice depends on your sodium needs, dietary preferences, and how intensely you exercise.
Key Differences
Sodium Content
LMNT contains 1000 mg sodium per packet, nearly 3x more than Nuun's 300 mg per tablet. This matters for heavy sweaters and keto dieters who lose more sodium.
Sugar Content
Both are effectively zero-sugar. LMNT uses no sweeteners or stevia depending on flavor. Nuun uses stevia leaf extract for a mildly sweet taste.
Format
LMNT comes as a powder stick packet you mix into water. Nuun comes as an effervescent tablet you drop into water and let dissolve.
Price Per Serving
LMNT costs roughly $1.50-2.00 per serving. Nuun is more budget-friendly at approximately $0.70-1.00 per tablet.
Potassium and Magnesium
LMNT has 200 mg potassium and 60 mg magnesium. Nuun has 150 mg potassium and 25 mg magnesium. LMNT wins on supporting minerals.
Taste Profile
LMNT has a noticeably salty taste, which some love and others find overwhelming. Nuun is lightly carbonated and tastes more like a mild sports drink.
LMNT vs Nuun Side by Side
| Feature | Vari | Nuun |
|---|---|---|
| Sodium per serving | LMNT: 1000 mg | Nuun: 300 mg |
| Potassium per serving | LMNT: 200 mg | Nuun: 150 mg |
| Magnesium per serving | LMNT: 60 mg | Nuun: 25 mg |
| Calories | LMNT: 0-10 cal | Nuun: 10-15 cal |
| Sugar | 0g | 1g (stevia sweetened) |
| Format | Powder stick packet | Effervescent tablet |
| Price per serving | ~$1.50-2.00 | ~$0.70-1.00 |
| Best for | Heavy sweaters, keto, fasting | Everyday fitness, casual hydration |
Choosing the Right Electrolyte Supplement
- Choose LMNT if you follow a keto or low-carb diet, since these diets increase sodium excretion through the kidneys.
- Choose Nuun if you want a convenient, budget-friendly daily electrolyte boost for moderate exercise.
- If you sweat heavily (visible salt stains on clothes), you likely need LMNT's higher sodium content.
- For long endurance events (marathons, ultrarunning), LMNT's 1000 mg sodium matches sports science sodium replacement recommendations.
- Start with Nuun if you are new to electrolyte supplements. The milder taste is easier to adjust to.
- Track your electrolyte drink consumption in Vari alongside plain water for a complete hydration picture.
Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. People with hypertension or kidney disease should consult their doctor before using high-sodium electrolyte supplements like LMNT. Vari is not affiliated with either LMNT or Nuun.
Frequently Asked Questions
Is 1000 mg of sodium per serving too much?
Not necessarily. The average person loses 500-1500 mg of sodium per hour of intense exercise through sweat. For heavy sweaters, athletes, and people on keto diets, 1000 mg can be appropriate. However, sedentary individuals or those with high blood pressure should consult a doctor first.
Can I use both LMNT and Nuun?
Yes. Some athletes use LMNT during intense training days and Nuun for lighter activity or rest days. This approach tailors your sodium intake to your actual needs.
Do electrolyte supplements replace water?
No. Electrolyte supplements are mixed into water, so they supplement your water intake. You still need to drink adequate plain water throughout the day. Think of electrolytes as an addition, not a replacement.
Which tastes better?
Taste is subjective. Nuun has a milder, slightly carbonated flavor that most people find pleasant immediately. LMNT has a noticeably salty taste that fans describe as addictive but newcomers may find strong. LMNT's citrus and watermelon flavors are often recommended for first-timers.
Are there any artificial ingredients in either?
Both brands emphasize clean ingredients. LMNT has no sugar, artificial sweeteners, or fillers. Nuun uses stevia for sweetness and contains no artificial colors or flavors. Always check the specific flavor label for details.
Track Electrolytes and Water Together
Download Vari to log your electrolyte drinks alongside plain water. Get a complete hydration picture and optimize your daily intake.