Best High-Sodium Electrolytes
For heavy sweaters, low-carb eaters and people whose clinician has advised a high daily sodium intake, these are the full-strength end of the market — 800 mg and up per serving. High sodium is a tool, not a virtue: if you have blood-pressure or kidney concerns, talk to your clinician before making any of these a daily habit.
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.
SALTT (by Keto Chow)
969 mg Na · 410 mg K · 178 mg Mg
People who compared LMNT's label and wanted more potassium and magnesium for less money — plus a genuinely unsweetened unflavoured option.
Redmond Re-Lyte
~800 mg class Na · ~400 mg class (2:1 marketing) K · Present — check the label Mg
Low-carb and keto shoppers who want a high-sodium, unrefined-salt formula, and families — there is a kids version (see our kids guide).
Precision Fuel & Hydration
250–1,500 mg by strength Na · Varies by strength K · Varies by strength Mg
Endurance athletes who sweat-test and want to choose a sodium strength — 250, 500, 1,000 or 1,500 mg — rather than one fixed dose.