LMNT review: a full gram of salt, the category’s best paperwork — and one notice nobody mentions

LMNT sells the least apologetic product in supplements: salt, in a stick, on purpose. A full 1,000 mg of sodium per serving — triple what Nuun offers — built on the argument that active, low-carb and fasting bodies lose far more sodium than hydration culture admits.

Our job isn’t to referee that debate; it’s to check the label, the paperwork and the price. The label is fully disclosed. The paperwork is the best in the category — with one 2021 asterisk we’ll show you. The price is the field’s highest. That mix scores 70/100, the top mark of the four electrolytes we’ve reviewed.

Key findings

Product specifications

The formula: maximalism, disclosed

LMNT’s formula is an argument in powder form: most people replacing sweat or running low-carb need far more sodium than conventional sports drinks provide, so here’s a full gram, plus meaningful magnesium (60 mg, the field’s highest) and modest potassium. Every number is printed, and there is nothing else to disclose — no sugar, no dyes, no vitamin confetti. The Raw option deserves special mention as possibly the cleanest label in all of supplements: three ingredients that are the product.

The honest counterweight: 1,000 mg per serving is a lot of added sodium against a typical American baseline already above recommended limits, and the 5:1 Na:K ratio is the most sodium-skewed in our comparison — deliberate for athletes, oversized for desk days. Formula 16/25, dosage & transparency 15/20: full marks for disclosure, honest deductions for a dose that fits a narrower population than the marketing implies.

The certification — and the 2021 notice

NSF Certified for Sport is the strongest verification any product in our electrolyte series carries: independent batch testing for contaminants and banned substances, with certified lots listed in NSF’s public database — you can check your box. That specificity is why LMNT scores 16/20 here while rivals with bare “third-party tested” claims score 6–9.

Now the asterisk, reported with its full context. On April 2, 2021, the Environmental Research Center — a California nonprofit that files many such actions — served Drink LMNT, Inc. a Proposition 65 60-day notice alleging lead in the Orange Salt and Chocolate Salt mixes. Prop 65’s thresholds are dramatically lower than FDA limits (mineral-based products trip them routinely), a notice is an allegation rather than a finding, and LMNT’s subsequent NSF certification is precisely the kind of independent answer we’d want to see. We report it because our standard is the whole record, whoever it flatters — the same standard that put consent decrees on Balance of Nature’s pages.

What it’s like to take

We have not yet run our own hands-on trial; reported themes from hands-on outlets and long-term users are unusually consistent: it dissolves instantly, the flavors are good by category standards, and it is salty — genuinely, polarizingly salty, which is the product working as designed and still the most common reason people bounce off it. Stick packs travel perfectly. Experience: 8/10, the best in our electrolyte series.

The math: $1.50 a serving, $548 a year

$45 ÷ 30 = $1.50 per serving; subscription $1.30. A daily habit runs $475–$548 a year — roughly double the value leader’s 6-pack tier ($260). Per 100 mg of sodium it’s more competitive (13–15¢) because the dose is so large — if maximum sodium per dollar is your metric, LMNT is closer to fair than its sticker suggests. If moderate doses are your need, you’re paying for salt you don’t require. Value: 9/15.

Returns and subscription

LMNT’s brand site sells one-time and by subscription (checked July 15, 2026) and has historically marketed a no-questions-asked refund policy; verify the current terms at checkout before relying on it, as policies change. No cancellation-complaint pattern surfaced in our feedback review. It’s also stocked at specialty retailers (The Feed, Thrive Market, Amazon), whose own return policies apply.

What customers report

We read customer feedback across the major platforms and summarize the recurring themes. We don’t republish other platforms’ reviews — check the live sources yourself:

What to buy instead

The full comparison has all four labels side by side. If the 1,000 mg dose or the price is what stops you: Nuun Sport (54/100) covers the light end at $0.75 a tablet, and Liquid I.V. (51/100) is the sugar-based ORS-style alternative — a different product class, reviewed honestly.

Final assessment

LMNT is the best-verified electrolyte we’ve reviewed and the easiest recommendation in the category for its intended user: the athlete, the heavy sweater, the low-carb faster. Full disclosure, zero sugar, a genuinely clean unflavored option, and the only certification in the field you can look up by batch. 70/100 — acceptable, with the missing thirty points split between a premium price, a dose most sedentary buyers don’t need, and a record item we’ve reported with its context. A full gram of daily added sodium is a medical question for anyone with blood-pressure or kidney conditions — ask your doctor, not a marketing page.

Frequently asked questions

How we scored this product

Every product is scored with the same public 100-point methodology: formula and ingredient quality (25%), dosage and label transparency (20%), testing and manufacturing transparency (20%), value (15%), product experience (10%) and brand and customer experience (10%). Commercial relationships never add points — on this page, a rival to a commonly-owned brand took the category’s top score. Read the full methodology.

Sources

Update history

• July 15, 2026 — Report first published. Label, pricing and record facts checked this date. We re-score on the record if pricing, certification status or the formula changes.

Content is for informational purposes only and is not medical advice. Individual sodium needs vary — consult your healthcare provider. Medical disclaimer.