LMNT vs Re-Lyte: sodium, sweeteners and cost compared

Label data checked . Amounts are per 12 fl oz of finished drink unless a table says otherwise.

LMNT Zero-Sugar Electrolytes has 23% more sodium than Redmond Re-Lyte Hydration Electrolyte Powder per 12 fl oz (750 mg vs 608 mg). Neither has any sugar. Redmond Re-Lyte Hydration Electrolyte Powder costs less per liter as mixed ($1.62 vs $3.17 for LMNT Zero-Sugar Electrolytes).

LMNT Zero-Sugar Electrolytes vs Redmond Re-Lyte Hydration Electrolyte Powder, side by side

LMNT Zero-Sugar Electrolytes vs Redmond Re-Lyte Hydration Electrolyte Powder, per 12 fl oz of finished drink
NutrientLMNT Zero-Sugar ElectrolytesRedmond Re-Lyte Hydration Electrolyte Powder
Formatpowder stickpowder tub
Drink volume12 fl oz (355 mL)12 fl oz (355 mL)
Calories4 kcal0 kcal
Carbohydrate0.8 g0 g
Sugars0 g0 g
Added sugarsnot on label0 g
Sodium750 mg608 mg
Potassium150 mg300 mg
Magnesium45 mg38 mg
Calciumnot on label45 mg
Caffeine0 mg0 mg
LMNT Zero-Sugar Electrolytes vs Redmond Re-Lyte Hydration Electrolyte Powder, per liter of finished drink
NutrientLMNT Zero-Sugar ElectrolytesRedmond Re-Lyte Hydration Electrolyte Powder
Formatpowder stickpowder tub
Drink volume1 liter (33.8 fl oz)1 liter (33.8 fl oz)
Calories11 kcal0 kcal
Carbohydrate2.1 g0 g
Sugars0 g0 g
Added sugarsnot on label0 g
Sodium2,114 mg1,712 mg
Potassium423 mg846 mg
Magnesium127 mg106 mg
Calciumnot on label127 mg
Caffeine0 mg0 mg
LMNT Zero-Sugar Electrolytes vs Redmond Re-Lyte Hydration Electrolyte Powder, per serving, as printed on each label
NutrientLMNT Zero-Sugar ElectrolytesRedmond Re-Lyte Hydration Electrolyte Powder
Formatpowder stickpowder tub
Drink volume16 fl oz (473 mL)16 fl oz (473 mL)
Calories5 kcal0 kcal
Carbohydrate1 g0 g
Sugars0 g0 g
Added sugarsnot on label0 g
Sodium1,000 mg810 mg
Potassium200 mg400 mg
Magnesium60 mg50 mg
Calciumnot on label60 mg
Caffeine0 mg0 mg

Shaded cells mark more electrolytes, or less sugar and fewer calories. Carbohydrate and caffeine are not marked, since more or less depends on your use. Neither label lists chloride.

LMNT Zero-Sugar Electrolytes label checked . Source (opens in a new tab)

Redmond Re-Lyte Hydration Electrolyte Powder label checked . Source (opens in a new tab)

Sodium per liter

Sweat carries about 230 to 1,610 mg of sodium per liter[1]. Both gauges use the same scale, so the markers line up.

LMNT Zero-Sugar Electrolytes2,114 mg/LVery highLMNT Zero-Sugar Electrolytes: 2,114 mg/L, in the Very high band (1,610 to 2,500 mg/L). Scale 0 to 2,500 mg/L.
Redmond Re-Lyte Hydration Electrolyte Powder1,712 mg/LVery highRedmond Re-Lyte Hydration Electrolyte Powder: 1,712 mg/L, in the Very high band (1,610 to 2,500 mg/L). Scale 0 to 2,500 mg/L.

Cost per serving and per 1,000 mg sodium

Cost of LMNT Zero-Sugar Electrolytes and Redmond Re-Lyte Hydration Electrolyte Powder
MeasureLMNT Zero-Sugar ElectrolytesRedmond Re-Lyte Hydration Electrolyte Powder
Price checked$45.00 for 30-count box of stick packs (one-time purchase)$45.99 for 60-serving jar
Cost per serving$1.50$0.77
Cost per liter$3.17$1.62
Cost per 1,000 mg sodium$1.50$0.95

LMNT Zero-Sugar Electrolytes price checked at LMNT . Source (opens in a new tab)

Redmond Re-Lyte Hydration Electrolyte Powder price checked at Redmond . Source (opens in a new tab)

Sugar, sweeteners and caffeine

  • No sugar sources in the ingredients. Sweetened with stevia.
  • Some LMNT Zero-Sugar Electrolytes flavors have caffeine (up to 50 mg per serving); the others have none.
  • 0.2% carbohydrate as mixed, which we estimate as hypotonic.
Ingredients

Salt (Sodium Chloride), Citric Acid, Magnesium Malate, Potassium Chloride, Natural Lemon & Lime Flavors, Stevia Leaf Extract.

  • No sugar sources in the ingredients. Sweetened with stevia.
  • Redmond Re-Lyte Hydration Electrolyte Powder has no caffeine.
  • 0% carbohydrate as mixed, which we estimate as hypotonic.
Ingredients

Sea Salt (Redmond Real Salt ®), Tartaric Acid, Potassium Citrate, Natural Flavors (including Grape), Magnesium Glycinate, Magnesium Malate, Calcium Carbonate, Stevia Leaf Extract (Rebaudioside A), Coconut Water Powder.

Which to pick

Each reason below is a measured difference in the label data.

Pick LMNT if

  • you want more sodium: 750 mg vs 608 mg per 12 fl oz
  • you want the option of a caffeinated flavor: up to 50 mg per serving

Pick Re-Lyte if

  • you want fewer calories: 0 kcal vs 4 kcal per 12 fl oz
  • you want more potassium: 300 mg vs 150 mg per 12 fl oz
  • you want the lower cost per liter: $1.62 vs $3.17
  • you want the cheapest sodium: $0.95 vs $1.50 per 1,000 mg

Where to buy

Some links on this page are affiliate links. We may earn a commission if you buy, and it never changes the data or rankings. Affiliate disclosure.

What the data can't tell you

  • How they taste. We compare labels, not flavor.
  • What they cost near you today. We checked LMNT Zero-Sugar Electrolytes at LMNT on Sep 24, 2026 and Redmond Re-Lyte Hydration Electrolyte Powder at Redmond on Sep 24, 2026.
  • How much sodium you lose. That depends on your sweat; the sweat rate calculator gives an estimate.
  • Every flavor. LMNT Zero-Sugar Electrolytes and Redmond Re-Lyte Hydration Electrolyte Powder list different values for some flavors; this page uses the main label.

FAQ

Which has more electrolytes, LMNT or Re-Lyte?

Per 12 fl oz, LMNT Zero-Sugar Electrolytes has 750 mg sodium, 150 mg potassium and 45 mg magnesium. Redmond Re-Lyte Hydration Electrolyte Powder has 608 mg sodium, 300 mg potassium and 38 mg magnesium. Per liter that is 2,114 mg vs 1,712 mg sodium.

Do LMNT and Re-Lyte have sugar?

LMNT Zero-Sugar Electrolytes: 0 g sugar and 4 kcal per 12 fl oz, sweetened with stevia. Redmond Re-Lyte Hydration Electrolyte Powder: 0 g sugar and 0 kcal per 12 fl oz, sweetened with stevia.

Which is cheaper, LMNT or Re-Lyte?

LMNT Zero-Sugar Electrolytes worked out at $1.50 a serving, $3.17 a liter and $1.50 per 1,000 mg sodium (30-count box of stick packs (one-time purchase) at LMNT, checked Sep 24, 2026). Redmond Re-Lyte Hydration Electrolyte Powder worked out at $0.77 a serving, $1.62 a liter and $0.95 per 1,000 mg sodium (60-serving jar at Redmond, checked Sep 24, 2026). Prices change often, so treat these as a snapshot.

Does LMNT or Re-Lyte have caffeine?

Some LMNT Zero-Sugar Electrolytes flavors have caffeine (up to 50 mg per serving); the others have none. Redmond Re-Lyte Hydration Electrolyte Powder has no caffeine.