Decision rules
Start with the job, not the brand
SaltStick Capsules
No-mix portability
Best format match when you prefer plain water, do not want sweetness or flavour, and want a capsule that travels without a mixing bottle. The current label basis is one capsule with 215 mg sodium.
LMNT Citrus Salt
High sodium per stick
Best label match when you intentionally want a flavoured, stevia-sweetened powder that lists 1,000 mg sodium and 0 g sugar per stick. Water volume determines its prepared concentration.
Nuun Sport
Defined bottle mix
Best format match when you want an effervescent flavoured tablet and a defined preparation: one tablet in 475 mL, listing 300 mg sodium and 1 g sugar.
Current database comparison
Compare the labels side by side
Values below come directly from the product records cited at the end of this page. Serving bases are preserved because a capsule, powder stick, and tablet are not equivalent units.
| Compare | SaltStick Capsules | LMNT | Nuun Sport |
|---|---|---|---|
| Format | Capsule | Powder stick | Effervescent tablet |
| Variant compared | Regular electrolyte capsules | Citrus Salt drink mix | Sport hydration tablet |
| Label basis | 1 capsule | 1 stick | 1 tablet |
| Listed sodium | 215 mg | 1,000 mg | 300 mg |
| Listed potassium | 63 mg | 200 mg | 150 mg |
| Listed magnesium | 11 mg | 60 mg | 25 mg |
| Listed calcium | 22 mg | Not quantitatively listed | 13 mg |
| Listed sugar | 0 g | 0 g | 1 g |
| Sweetener | None listed | Stevia | Stevia |
| Mixing or use | Take with water; not mixed as a drink | Mix into water; chosen volume changes concentration | 1 tablet in 475 mL water |
| Prepared sodium concentration | Not applicable or no fixed one-serving water volume | Not applicable or no fixed one-serving water volume | 632 mg/L (SALTBLAST calculation) |
| SALTBLAST evidence status | Founder tested | Label researched | Label researched |
How to make the call
Use this order
- 01
Choose the format you will actually use. Capsule, powder, and effervescent tablet create different routines.
- 02
Compare sodium on the same basis. Keep the labelled unit and water volume attached to every number.
- 03
Check sugar, sweetener, and flavour. Zero sugar does not mean unsweetened; LMNT and Nuun list stevia in this dataset.
- 04
Recheck the package. Formulas and directions can change after this comparison is updated.
Sources
Manufacturer records
SaltStick Capsules
Alete / SaltStick product page
Open official source →LMNT
LMNT product page
Open official source →Nuun Sport
Nuun Sport product page
Open official source →
Data reviewed August 26, 2026. Specifications can change; verify the current package. SALTBLAST calculations are identified as calculations. Educational content only—not medical advice.
Quick answers
Frequently asked questions
Which has the most sodium per labelled serving: SaltStick, LMNT, or Nuun?
For the exact variants compared, LMNT lists 1,000 mg per stick, Nuun Sport lists 300 mg per tablet, and SaltStick Capsules list 215 mg per capsule. These are different formats and labelled units, so the numbers are not interchangeable dosing instructions.
Which of these electrolyte products lists zero sugar?
SaltStick Capsules and LMNT Citrus Salt each list 0 g sugar in the product data used for this comparison. Nuun Sport lists 1 g sugar per tablet.
Which option does not need to be mixed into water?
SaltStick is a capsule taken with water rather than mixed as a drink. LMNT is a powder mixed into water, while Nuun Sport is an effervescent tablet prepared in 475 mL according to the label data used here.
Is SaltStick, LMNT, or Nuun best for everyone?
No. Format, flavour, labelled sodium, sugar, water volume, diet, session conditions, and relevant health considerations all affect the decision. This page compares labels and formats; it does not prescribe an electrolyte dose.