LMNT vs Liquid IV 2026: Which Electrolyte Mix Fits You?

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A July doubleheader in the softball league, a hot-yoga class that leaves the mat soaked, a 90-minute pickup soccer game in the afternoon sun, a long Saturday ride with salt crusting on your jersey: at some point a teammate hands you a stick pack and says “try this.” It’s usually one of two brands. LMNT vs Liquid IV is the most common electrolyte question we see, and the honest answer is that they’re built for different jobs: LMNT is very salty with no sugar, Liquid I.V. has half the sodium plus sugar and vitamins. Here’s how they compare on the label, the price per stick and third-party testing, plus two certified alternatives.

Prices change often. The prices below are what we saw at the maker or a major retailer in October 2026; check the current price before you buy.

Safety first: electrolyte mixes are foods and supplements, not medicine. One LMNT stick has 1,000 mg of sodium, a big share of the FDA’s 2,300 mg Daily Value. If you have high blood pressure, heart or kidney disease, are on a low-sodium diet, take medication or are pregnant, talk to your doctor or a registered dietitian before using either. Follow the label.

Our top picks

LMNT vs Liquid IV at a glance

Per serving	Sodium	Potassium	Sugar	Calories	Testing	Per serving (Oct 2026)
LMNT	1,000 mg	200 mg	0 g	5	Not certified for sport	$1.13–1.50
Liquid I.V. (Lemon Lime)	500 mg	370 mg	11 g added	50	Not certified for sport	$1.09–1.56
Liquid I.V. Sugar-Free	500 mg	370 mg	0 g	25	Raspberry Lemonade only: NSF	$1.45–1.56
LMNT Sparkling (16 oz)	1,000 mg	200 mg	0 g	Not stated	Not certified for sport	$2.50–2.75
Nuun Sport	300 mg	150 mg	1 g	15	Informed Choice	$0.48–0.75
Thorne Advanced Electrolytes	600 mg	200 mg	13 g added	Not stated	NSF Certified for Sport	$1.95

The contenders

1. LMNT: best for heavy, salty sweaters

LMNT is the salty one. Each 6 g stick has 1,000 mg of sodium, 200 mg of potassium and 60 mg of magnesium, with no sugar and 5 calories. Flavored versions are sweetened with stevia; Raw Unflavored is just salt, magnesium malate and potassium chloride. It comes in 12 flavors, including a Chocolate Salt you can drink hot, and only Lemonade Iced Tea has caffeine (50 mg from black tea). A box of 30 is $45 ($1.50 a stick), or about $1.13 in LMNT’s 120-stick bundle; LMNT says it doesn’t run coupons or holiday sales. It is not third-party certified for sport.

• Good: the most sodium per stick; zero sugar; short ingredient list.
• Watch out: very salty taste; too much sodium for some people; not certified.
• Best for: heavy sweaters in long, hot sessions; low-carb eaters.

Check the LMNT price on Amazon

2. Liquid I.V. Hydration Multiplier: best everyday taste

Liquid I.V. is sweeter and easier to drink. The Lemon Lime stick (16 g) has 500 mg of sodium, 370 mg of potassium, 11 g of added sugar (cane sugar and dextrose) and 50 calories, plus vitamin C, niacin, B6, B12 and pantothenic acid. The brand now markets the formula as “LIV HYDRASCIENCE” and says it has 3x the electrolytes of the leading sports drink; those are the maker’s claims. It’s $24.99 for 16 at Liquid I.V. ($1.56), $17.49 on subscription, and about $1.10 a stick in Costco’s 30-pack. The original line is not third-party certified for sport.

• Good: easy, sweet taste; sold in supermarkets and big-box stores; more potassium than LMNT.
• Watch out: 11 g of added sugar per stick (the FDA’s Daily Value for added sugars is 50 g); half LMNT’s sodium; not certified.
• Best for: moderate sweaters, travel days and people who won’t drink something salty.

Check the Liquid I.V. price on Amazon

3. Liquid I.V. Sugar-Free: the middle ground

If you like Liquid I.V.’s taste but not the sugar, the Sugar-Free line swaps cane sugar for allulose and stevia and adds L-glutamine and L-alanine. The Lemon Lime label shows 500 mg of sodium, 370 mg of potassium, 0 g of sugar and 25 calories, with the same vitamins (the product page text says 510 mg and 380 mg; we went with the label). It’s 14 sticks for about $20 on Amazon (around $1.45). Only one flavor, Sugar Free Raspberry Lemonade, appears in NSF’s Certified for Sport database.

• Good: no sugar; milder than LMNT; one NSF-certified flavor.
• Watch out: fewer sticks per box; allulose doesn’t suit every stomach.
• Best for: athletes watching sugar who find LMNT too salty.

Check the Liquid I.V. Sugar-Free price on Amazon

4. LMNT Sparkling: best ready to drink

LMNT also comes in cans. The 16 oz Sparkling has the same 1,000 mg sodium, 200 mg potassium and 60 mg magnesium as a stick, with zero sugar, no caffeine and stevia for sweetness. It’s $90 for 36 cans at LMNT ($2.50 a can); a 12-can variety pack was about $33 on Amazon. A newer 12 oz can holds “half the stick,” per LMNT. Not certified for sport.

• Good: nothing to mix; cold from the cooler at a tournament.
• Watch out: costs much more per serving than sticks; heavy to carry.
• Best for: sideline coolers and post-game drinks.

Check the LMNT Sparkling price on Amazon

5. Nuun Sport: certified alternative on a budget

Neither LMNT nor regular Liquid I.V. is tested for sport. Nuun Sport tablets are Informed Choice certified, and each has 300 mg of sodium, 150 mg of potassium, 25 mg of magnesium, 1 g of sugar and 15 calories. Drop one in a bottle and wait for the fizz. It’s the cheapest option here, about $0.48 a tablet in a 4-tube pack on Amazon.

• Good: certified; low sugar; tiny tubes fit in a jersey pocket.
• Watch out: much less sodium than LMNT.
• Best for: everyday training and school or college athletes.

Check the Nuun Sport price on Amazon

6. Thorne Advanced Electrolytes: for drug-tested athletes

If you compete under anti-doping rules, Thorne’s mix is NSF Certified for Sport. Each scoop has 600 mg of sodium, 200 mg of potassium, 100 mg of magnesium and 80 mg of calcium, with 15 g of carbs (13 g added sugar). It’s $39 for 20 servings, about $1.95 each.

• Good: NSF certified; sodium between Liquid I.V. and LMNT.
• Watch out: highest price per serving of the powders; has sugar.
• Best for: NCAA, Olympic-pathway and pro athletes.

Check the Thorne Advanced Electrolytes price on Amazon

Head to head

Sodium

LMNT wins on salt: 1,000 mg versus 500 mg. Whether that’s good depends on you. The American College of Sports Medicine’s fluid position stand notes that sweat rate and sweat electrolytes vary a lot between people and recommends customized plans; one review of about 500 athletes found sweat sodium ranging roughly ninefold. Heavy, salty sweaters in long sessions are LMNT’s audience; most people in a one-hour gym class don’t need that much.

Sugar and calories

LMNT has none; regular Liquid I.V. has 11 g of added sugar and 50 calories. During a long effort, a little sugar is useful fuel. On a rest day or at your desk, it’s just sugar. The Sugar-Free Liquid I.V. closes most of that gap.

Taste and extras

Liquid I.V. tastes like a sweet sports drink and adds five vitamins; LMNT tastes salty and adds magnesium. Most people know within a sip which one they prefer.

Price

Close: about $1.13–1.50 a stick for LMNT and $1.09–1.56 for Liquid I.V., depending on bundle, subscription or warehouse club.

Testing

Neither LMNT nor regular Liquid I.V. is third-party certified for sport; only Sugar Free Raspberry Lemonade appears in NSF’s database. Drug-tested athletes should look at Thorne or Nuun instead.

The verdict: who each one is for

• Choose LMNT if you sweat heavily, train long in the heat, eat low-carb, and don’t have a reason to limit sodium.
• Choose Liquid I.V. if you want an easy-tasting mix for moderate sweating or travel and don’t mind 11 g of sugar (or pick Sugar-Free).
• Choose Nuun or Thorne if you’re tested in competition or just want a third-party certified product.

Want the full field? See our best electrolyte powder guide, best energy gels for carbs on long days, and best running hydration vest to carry your drink. Team-sport player? Our soccer page covers match-day gear. Or browse Hydration & Electrolytes.

LMNT vs Liquid IV questions

Is LMNT or Liquid IV better for hydration?

Neither is “better” for everyone. LMNT gives more sodium and no sugar; Liquid I.V. gives less sodium, more potassium, sugar and vitamins. Match the mix to how much and how salty you sweat, and to your diet.

Can I drink LMNT every day?

Count it in your daily sodium. One stick is 1,000 mg against the FDA’s 2,300 mg Daily Value. If you have blood pressure, heart or kidney concerns, ask your doctor first.

Does Liquid IV have caffeine?

The Lemon Lime Hydration Multiplier and Sugar-Free sticks we checked list no caffeine in their ingredients. LMNT’s only caffeinated flavor is Lemonade Iced Tea (50 mg).

Are LMNT and Liquid IV safe for drug-tested athletes?

They aren’t third-party certified for sport (apart from Liquid I.V. Sugar Free Raspberry Lemonade on NSF’s list). Tested athletes should pick a product listed by NSF Certified for Sport or Informed Sport/Choice.

How much water do I mix them with?

Follow each label. Adding extra water makes LMNT taste less salty but doesn’t change the amount of sodium you take in.