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Label Comparison

LMNT vs Nuun Sport: 1000mg powder vs 300mg tablet

Both are popular electrolyte products, but the labels are not in the same lane. LMNT is a high-sodium powder; Nuun is a lower-sodium effervescent tablet with a different format and serving ritual.

·By Croix

Lyte Lab compares published labels, ingredient disclosures, package economics, and formula categories. It does not recommend a product for your health, diet, medications, symptoms, training, or hydration needs.

Formula summary

LMNT is the high-sodium powder profile; Nuun is the lower-sodium effervescent tablet profile.

Side-by-side: per-serving label

MetricLMNT Electrolyte Drink MixNuun Sport Electrolyte Tablets
Sodium1000mg300mg
Potassium200mg150mg
Magnesium60mg (magnesium malate)25mg (magnesium oxide)
Calcium—13mg
Zinc——
Sugar / carbs0g4g
Calories0 kcal15 kcal
Formatpowdertablet
Per-serving price$1.50$0.75
Package price$45.00$7.49

The honest read

The numbers tell most of the story. LMNT lists 1000mg sodium per stick. Nuun Sport lists 300mg sodium per tablet. Cross-shopping them on price (~$1.50/stick vs ~$0.80/tablet) misses the more important difference, which is dose and format.

On format, Nuun has the actual edge. The effervescent tablet is the product — drop one in a 16oz water bottle, wait 90 seconds, drink. That format is genuinely hard to replicate at home and is the part that justifies the brand price for a lot of users. A tube of Nuun in a backpack, gym bag, or jersey pocket is more practical than a sleeve of powder sticks for on-the-go use. LMNT's stick-pack is convenient too, but it requires water already in front of you and an empty bottle — the format friction is real even if it's small.

On magnesium, LMNT lists 60mg of magnesium malate; Nuun lists 25mg of magnesium oxide. On the label both look like magnesium-inclusive products, but the amounts and forms are different enough that a label-matched DIY should keep them separate rather than treating them as interchangeable.

For reverse engineering, the practical split is simple: LMNT is easier to recreate as a powder because it already is one; Nuun's tablet format is the part a home recipe does not reproduce. The Lyte Lab builder can match Nuun's mineral totals as a powder, but not its compressed effervescent tablet format.

Formula profiles

LMNT label profile

LMNT Electrolyte Drink Mix

  • ·1000mg sodium per stick, over 3x Nuun's sodium.
  • ·Powder stick format rather than effervescent tablet.
  • ·0g sugar with 60mg magnesium malate.
  • ·Premium per-serving price with a higher mineral load.

Nuun Sport label profile

Nuun Sport Electrolyte Tablets

  • ·300mg sodium per tablet, a much lower-sodium profile.
  • ·Effervescent drop-in-water tablet format.
  • ·4g carbs and 25mg magnesium oxide.
  • ·Lower per-serving retail price than LMNT.

Or skip both — label-matched DIY versions are ~5-10¢/serving

Both formulas are reproducible from bulk minerals at a fraction of retail. Lyte Lab has tool-generated DIY recipes for each, with shopping lists and per-ingredient SKU links.

DIY LMNT Electrolyte Drink Mix
Save $1.43/serving · ~95% off retail
DIY Nuun Sport Electrolyte Tablets
Save $0.68/serving · ~91% off retail
Or build a custom mix in the builder

Frequently asked

Is LMNT just "more Nuun" — same product at a higher dose?+
No. They are different categories. Three Nuun tablets would get close to LMNT's sodium, but it would also change the magnesium oxide, carbohydrate, acid/base, and tablet-system components. That is a different drink chemistry, not the same drink concentrated.
Is the magnesium oxide in Nuun actually doing anything?+
Very little. Magnesium oxide is much less soluble and less bioavailable than citrate in clinical studies, and at 25mg per tablet the dose is tiny against a 320-420mg daily RDA. LMNT's malate form is a more conscientious choice. If you're using either product specifically for the magnesium, you're paying for the wrong thing — buy a dedicated magnesium supplement.
Can I make Nuun-style tablets at home?+
Not really, not without equipment. Effervescent tablets need a tablet press, food-grade citric acid plus sodium bicarbonate in the right ratio for the fizz, a binder, and a controlled-humidity environment to keep them from activating in the bottle. It's doable as a hobbyist project, but the time and equipment investment dwarfs the savings unless you genuinely enjoy the process. The pragmatic DIY path for Nuun's macros is powder.
Why is LMNT more expensive per serving than Nuun?+
Three reasons. (1) LMNT's bulk-mineral content is roughly 3× higher — 1000mg sodium vs 300mg, plus more magnesium and chloride. (2) LMNT's brand position is premium-keto-and-athletic; Nuun positions as everyday-fitness. (3) Powder is cheaper to produce per gram than effervescent tablets at scale, so the per-serving format premium goes to Nuun, but the per-mineral cost still favors LMNT. The DIY versions of both are roughly comparable on bulk-cost.
Which label is lower carb?+
LMNT lists 0g sugar. Nuun Sport lists 4g carbs from the tablet system and flavor blend. Lyte Lab treats that as a label distinction and does not evaluate whether either product fits a specific diet.
What about LMNT in tablet form?+
Doesn't exist as a brand SKU. LMNT ships exclusively as powder sticks. If you want LMNT's macros in a tablet format, the closest commercial option is dosing two Nuun tablets (gets you to ~600mg sodium) or sourcing salt-stick capsules and treating them as a sodium-only supplement. Neither is a clean equivalent. The DIY route is the only way to hit LMNT's profile in any non-powder format, and even then powder is the realistic option.

Sources & references

  1. Magnesium bioavailability from magnesium citrate and magnesium oxide (Lindberg et al, 1990) — PubMed (U.S. National Library of Medicine)
  2. Mg citrate found more bioavailable than other Mg preparations (Walker et al, 2003) — PubMed (U.S. National Library of Medicine)
  3. Sweating Rate and Sweat Sodium Concentration in Athletes: A Review (Baker, 2018) — PubMed (U.S. National Library of Medicine)
  4. Magnesium — Health Professional Fact Sheet — NIH Office of Dietary Supplements

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