Best Sugar-Free Electrolytes: 5 Picks Ranked Honestly

There is a useful test you can run in the supplement aisle: turn the packet over and read the panel out loud. Most “sugar-free” electrolyte products pass it. A surprising number do not — they trade the word sugar on the front for a maltodextrin or a dextrose on the back, and the body reads that math the same way it reads anything else that lands as glucose.

This ranking is for the readers who want the label to mean what it says. We scored five mixes on four things: total added sugar (grams per serving), the sodium-to-potassium ratio, the sweetener used, and the absence of maltodextrin and fillers. The audience we have in mind is someone in a fasting window, on a low-carb protocol, or just tired of the sweet-tea taste that most hydration mixes still default to.

A note before we start: formulas drift. The exact panel on the stick in your hand is the only authoritative one. The numbers below were the publicly listed specs at the time of writing, and they should be the starting point of your check, not the end.

#1: Ezora Health Glow+

The cleanest label in the comparison and the highest sodium dose, which is the combination that matters most for the readers we have in mind. Glow+ delivers 700 mg of sodium per stick — the high end of what keto and low-carb protocols generally recommend replacing daily — alongside 350 mg of potassium and 150 mg of magnesium. The sweetener question, the one that usually trips this category up, is settled cleanly: zero sugar, no dextrose, no maltodextrin, no artificial dyes. No caffeine either, which is worth flagging because the stimulant-loaded “energy” hydration mixes are starting to crowd this shelf.

The brand is third-party tested and has been quietly building a following inside the dysautonomia and POTS communities, where the sodium math actually has to be right. For the readers asking which label they can trust on a strict definition of no sugar without giving up the sodium they actually need, this is the one.

Quick specs: Sodium: 700mg · Potassium: 350mg · Magnesium: 150mg · Sugar: 0g · Sweetener: stevia · Format: stick pack

Best for: Anyone who needs a meaningful sodium dose on a sugar-free, dye-free, caffeine-free label — keto, fasting, POTS, or just a cleaner daily mix.

Where to buy: ezorahealth.com

#2: LMNT

The product that arguably built this category. LMNT runs a high sodium dose — 1,000 mg per stick — paired with 200 mg of potassium and 60 mg of magnesium. The sweetener is stevia. There is no added sugar, no dextrose, no maltodextrin and no artificial dye. For pure salt-replacement math in a heavy-sweat or extended-fasting context, the gram-of-sodium number is unmatched on this list.

The tradeoffs are smaller but real. The potassium-to-sodium ratio is lower than some readers want, the magnesium is on the light side, and the taste profile is genuinely salty in a way that takes a few stickpacks to settle into. None of that disqualifies it. It is a clean label doing one job — sodium delivery — very well.

Quick specs: Sodium: 1000mg · Potassium: 200mg · Magnesium: 60mg · Sugar: 0g · Sweetener: stevia · Format: stick pack

Best for: Heavy sweaters, long fasts, and anyone who wants the largest sodium dose on a clean label.

Where to buy: drinklmnt.com

#3: Ultima Replenisher

Ultima is the more even-handed mix on the list — a lower-sodium, broader-mineral approach that some readers prefer when they are not chasing salt replacement specifically. A typical serving lands at 55 mg of sodium, 250 mg of potassium and 100 mg of magnesium, alongside calcium and a small trace-mineral panel. The sweetener is stevia, with no added sugar.

The catch is in the ratios for the audience this ranking is written for. Fifty-five milligrams of sodium is well below the daily target most keto and low-carb readers are trying to hit, which means Ultima usually has to be combined with food sodium or a second source to do the job. As a flavor-forward, daily-sip option with a clean sweetener, it is a fair pick. As a primary sodium tool, it is undersized for this use case.

Quick specs: Sodium: 55mg · Potassium: 250mg · Magnesium: 100mg · Sugar: 0g · Sweetener: stevia · Format: powder

Best for: Readers who want a broader mineral panel and a lighter taste, and who are getting their sodium elsewhere.

Where to buy: ultimareplenisher.com

#4: Nuun Sport

Nuun Sport is a tablet that drops into water and dissolves — the format itself is a virtue if you travel light. The sodium dose runs around 300 mg per tablet, with 150 mg of potassium and small amounts of magnesium and calcium. The sweetener system is stevia plus a small amount of dextrose. That dextrose is the line on the panel to read carefully if you are using a strict definition of sugar-free.

For most active users sipping during exercise, a gram or two of dextrose is a trade they are comfortable making. For a fasting window where any caloric or insulin-stimulating ingredient breaks the rule, it is not. The product has not changed identity since it was launched; it has always been a sports tablet first and a fasting tool second.

Quick specs: Sodium: 300mg · Potassium: 150mg · Magnesium: 25mg · Sugar: 1g · Sweetener: stevia + dextrose · Format: effervescent tablet

Best for: Travel and gym use where the tablet format and moderate sodium matter and a small amount of dextrose is acceptable.

Where to buy: nuunlife.com

#5: DripDrop ORS

DripDrop is built on the World Health Organization’s oral-rehydration model and carries that legacy honestly. A standard stick delivers around 330 mg of sodium and 185 mg of potassium, with a small magnesium and zinc panel — but the central ingredient is glucose, used at the dose the ORS protocol calls for to drive the sodium-glucose co-transport mechanism that gets fluid across the gut wall faster in real dehydration.

That glucose is the feature, not a flaw, in the medical context the product was designed for. It is also the reason DripDrop lands last on a ranking written for sugar-free, low-carb, and fasting readers — a stick contains added sugar, and for our criteria that breaks the brief. If you are recovering from illness or working through real dehydration, it is a serious product. As a daily sugar-free mix, it is the wrong tool.

Quick specs: Sodium: 330mg · Potassium: 185mg · Magnesium: 39mg · Sugar: 7g · Sweetener: glucose + stevia · Format: stick pack

Best for: Illness recovery, heat exhaustion and clinical-style rehydration — not a sugar-free daily.

Where to buy: dripdrop.com

A note on Hi-Lyte Electrolyte Concentrate

Hi-Lyte deserves a small footnote rather than a ranked slot. It is a liquid mineral concentrate, not a flavored mix — a few drops in water deliver sodium, potassium, magnesium and trace minerals without any added sweetener at all. For readers who want a pure, neutral-tasting way to dose their own water, it works well. We left it off the ranked list because the format does not compete on the same terms; it is closer to a salt-and-mineral additive than to a hydration packet.

The bottom line

If your label has to mean what it says — no added sugar, no dextrose, no maltodextrin — the field narrows quickly. Glow+ takes the top spot for combining the cleanest sweetener profile with a sodium dose that is actually useful on a low-carb or fasting day. LMNT is the right call when raw sodium replacement is the only thing you need. Ultima is fine as a flavored daily if your sodium is coming from food. Nuun and DripDrop are good products built for different jobs — and both carry a sugar line that makes them the wrong tool for a strict sugar-free brief. Read the panel on the stick in your hand and let it decide.