Liquid I.V. and Nuun are two of the most popular electrolyte mixes. Both turn plain water into a flavored drink with added minerals, but they are built differently. Liquid I.V. is a sugar-based powder stick. Nuun is a low-sugar effervescent tablet. Here is how they compare.
Quick Answer
- Choose Liquid I.V. if you want fast rehydration after sweating, travel, illness, or a long day, and you are fine with added sugar.
- Choose Nuun if you want a light, low-sugar electrolyte drink for workouts or everyday sipping.
Side-by-Side Comparison
| Liquid I.V. Hydration Multiplier | Nuun Sport | |
|---|---|---|
| Form | Powder stick | Effervescent tablet |
| Mix with | 16 oz water | 16 oz water |
| Sodium | about 500-530 mg | 300 mg |
| Potassium | about 370-380 mg | 150 mg |
| Magnesium | None listed | 25 mg |
| Sugar | 11 g | 1 g |
| Calories | about 45 | about 15 |
| Vitamins | C, B3, B5, B6, B12 | Varies by product |
| Sweetener | Cane sugar, dextrose, stevia | Dextrose and stevia |
Formulas and flavors vary by region and product line, so check the label on the package you buy.
How Each One Works
Liquid I.V.
Liquid I.V. combines sodium, potassium, and glucose. The brand calls this Cellular Transport Technology. The idea is that sodium and glucose are absorbed together in the small intestine, which pulls water along with them. This is the same principle behind oral rehydration solutions. The sugar is there for function, not just taste.
Nuun
Nuun uses a lower-sugar approach. It provides sodium, potassium, magnesium, and a small amount of calcium, with only about 1 gram of sugar. It is meant to replace the minerals lost in sweat without the calories of a traditional sports drink. The tablet fizzes as it dissolves, which makes it easy to carry in a gym bag.
Electrolytes
Liquid I.V. has noticeably more sodium and potassium per serving. That makes it a stronger rehydration option when you have lost a lot of fluid. Nuun has less sodium and potassium but includes magnesium, which Liquid I.V. does not list. Its lower concentration makes it easier to drink throughout the day.
Sugar and Calories
This is the biggest difference between the two. Liquid I.V. has about 11 grams of added sugar per stick. Nuun Sport has about 1 gram. People watching sugar intake usually prefer Nuun, though Liquid I.V. also sells a sugar-free version.
Taste and Convenience
Both come in many fruit flavors. Liquid I.V. tends to taste sweeter. Nuun tends to taste lighter and more like flavored sparkling water. Liquid I.V. sticks are easy to tear and pour. Nuun tablets come in a tube, which is compact but can crush if packed carelessly.
Price
Prices vary by retailer and pack size. Liquid I.V. typically costs around $1.50 to $2 per serving, and Nuun typically costs a little less per serving, usually around $1 to $1.50. Check current prices before buying.
Who Should Choose Which?
Liquid I.V. may suit you if you:
- Need to rehydrate after heavy sweating, travel, or a hot day
- Want more sodium and potassium in one serving
- Don’t mind added sugar
Nuun may suit you if you:
- Want a low-sugar, low-calorie option
- Drink electrolytes during or after moderate workouts
- Prefer a lighter taste
Safety Notes
Both products are high in sodium, so people on a sodium-restricted diet should be careful. Liquid I.V. is also high in potassium, which matters for people with kidney conditions or those taking potassium-affecting medications. If you have a medical condition, check with your doctor before using electrolyte products regularly. For short, light activity, plain water is usually enough.
Final Verdict
Neither product is better for everyone. Liquid I.V. is the stronger choice for fast rehydration and higher electrolyte intake. Nuun is the better choice for a low-sugar, everyday drink. Pick based on your activity, your sugar preference, and your budget.
FAQ
Is Liquid I.V. better than Nuun?
Neither is better overall. Liquid I.V. has more sodium and potassium, while Nuun has far less sugar.
Which has more sugar?
Liquid I.V. has about 11 g per stick. Nuun Sport has about 1 g per tablet.
Which has more sodium?
Liquid I.V. has more, roughly 500-530 mg versus 300 mg for Nuun Sport.
Can I drink them every day?
Many people do, but the sodium and sugar (for Liquid I.V.) add up, so check the label and your overall diet.
Which is better for workouts?
Nuun is popular for regular workouts because of its low sugar. Liquid I.V. is popular after long, sweaty sessions.