Nuun
The tablet format is the point: small, light, and easy to carry, with a gentle 300 mg sodium dose that suits a desk or a short workout more than a roof in August.
| Field | Nuun |
|---|---|
| Format | Effervescent tablets |
| Sugar | 1 g |
| Sweetener | Stevia + a small amount of dextrose |
| Best for | Light, portable, low-sugar daily hydration and travel — drop a tablet in a bottle, no stirring. |
| Not for | Heavy sweaters who need serious sodium replacement, or people who dislike fizz (the carbonation bothers some sensitive stomachs). |
Label figures, checked Oct 2026 — see How we compare for what that means. Doses are for the hero formulation named in our study; many brands sell several formulas — check the pack in your hand.
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Similar jobs, other brands

Liquid I.V.
500 mg Na · 370 mg K · 0 mg listed Mg
Everyday hydration and the easiest brand to find in stores; Sugar-Free swaps the 11 g sugar for allulose + stevia.

LMNT
1,000 mg Na · 200 mg K · 60 mg (malate) Mg
High-sodium, zero-sugar hydration for heavy sweaters, heat work and low-carb eating; the Raw Unflavoured version is a true no-sweetener option.

Gatorade / Gatorlyte / Propel
~160 mg (classic RTD, per bottle serving) Na · 45 mg K · Not a feature Mg
Cheap, everywhere sports hydration; Gatorlyte and the powder lines run materially higher in electrolytes than classic ready-to-drink.