Hydralyte Effervescent Electrolyte Tablets

Hydralyte Effervescent Electrolyte Tablets has 280 mg sodium and 4 g sugar per tablet mixed with 6.8 fl oz (200 mL) of water. That works out to 1,400 mg sodium per liter as mixed, with 2.5% carbohydrate, which is in our high sodium band. A 12 fl oz glass has 35 kcal.

  • Contains sugar
  • Low calorie
  • Caffeine free
  • Artificial sweeteners: sucralose
  • Keto friendly by our rule
  • Hypotonic (estimate)

Keto friendly here means 5 g total carbs or less per serving in every flavor. Tonicity is estimated from carbohydrate concentration alone. How we define these.

Hydralyte Effervescent Electrolyte Tablets packaging
Sodium per liter
1,400 mg
Sugar per 12 fl oz
7.1 g
Calories per 12 fl oz
35 kcal
Caffeine per serving
0 mg
Cost per serving
$1.50

Nutrition facts

Label values scaled to a common volume. "Not on label" means the label we checked does not list it.

Nutrition as mixedLabel serving is 200mL (prepared), 6.8 fl oz (200 mL) of finished drink.
NutrientPer label servingPer 12 fl ozPer liter
Calories20 kcal35 kcal100 kcal
Total carbohydrate5 g8.9 g25 g
Total sugars4 g7.1 g20 g
Added sugars4 g7.1 g20 g
Sodium280 mg497 mg1,400 mg
Potassium160 mg284 mg800 mg
Magnesiumnot on labelnot on labelnot on label
Calcium0 mg0 mg0 mg
Chloridenot on labelnot on labelnot on label
Caffeine0 mg0 mg0 mg
Carbohydrate concentration2.5% (g per 100 ml)
Sodium to potassium ratio1.8 to 1 by weight

Label checked . Source (opens in a new tab)

Serving and mixing

Label serving
200mL (prepared)
Finished drink per serving
6.8 fl oz (200 mL)
Servings per container
10
How to mix
Panel serving is 200 mL of prepared drink (one tablet per serving assumed from the 10-serving tube).

Flavors

  • Orange

Every flavor listed shares the same nutrition panel in our records.

Ingredients

Orange: Dextrose (anhydrous), citric acid, sodium bicarbonate, maltose, potassium chloride, sodium chloride, natural flavor, mannitol, polyethylene glycol 6000, beta-carotene, sucralose

Closest alternatives

The nearest products by sodium per liter, carb % and format. Other brands come first.

  • Sodium per liter, Pedialyte with Immune Support Powder Packs: 1,374 mg/L, in the High band (920 to 1,610 mg/L). Scale 0 to 2,500 mg/L.

    1,374 mg sodium per liter (this one: 1,400), 2.5% carbs (this one: 2.5%), powder stick.

  • Pedialyte Sport Powder Packs packaging
    Pedialyte Sport Powder PacksPedialyte · Powder stick
    Sodium per liter, Pedialyte Sport Powder Packs: 1,374 mg/L, in the High band (920 to 1,610 mg/L). Scale 0 to 2,500 mg/L.

    1,374 mg sodium per liter (this one: 1,400), 2.1% carbs (this one: 2.5%), powder stick.

  • Sodium per liter, Biolyte On the Go Electrolyte Powder: 1,543 mg/L, in the High band (920 to 1,610 mg/L). Scale 0 to 2,500 mg/L.

    1,543 mg sodium per liter (this one: 1,400), 2.3% carbs (this one: 2.5%), powder stick.

  • Sodium per liter, Pedialyte AdvancedCare Plus Powder Packs: 1,374 mg/L, in the High band (920 to 1,610 mg/L). Scale 0 to 2,500 mg/L.

    1,374 mg sodium per liter (this one: 1,400), 3.2% carbs (this one: 2.5%), powder stick.

Where this data comes from

Nutrition values come from the brand's nutrition label image. We compared the label with USDA FoodData Central record 2444516. At least one value differs by more than 10%. We show the label values and have flagged the gap for review. See the Hydralyte product page (opens in a new tab) for current packaging.

Label checked . Source (opens in a new tab)

Spot an error or a label change? Tell us and we will recheck it. See the methodology for how we collect and convert label data.

FAQ

How much sodium is in Hydralyte Effervescent Electrolyte Tablets?

Hydralyte Effervescent Electrolyte Tablets has 280 mg sodium per tablet mixed with 6.8 fl oz (200 mL) of water. That is 497 mg per 12 fl oz and 1,400 mg per liter, which puts it in our high sodium band.

Does Hydralyte Effervescent Electrolyte Tablets have caffeine?

No. Every flavor of Hydralyte Effervescent Electrolyte Tablets we checked lists 0 mg caffeine.

Is Hydralyte Effervescent Electrolyte Tablets sugar-free?

No. Hydralyte Effervescent Electrolyte Tablets has 4 g sugar per serving, or 7.1 g per 12 fl oz. It also contains sucralose.

How much does Hydralyte Effervescent Electrolyte Tablets cost per serving?

About $1.50 per serving, based on $14.99 for 1 tube, 10 tablets at Hydralyte on Sep 24, 2026. That is $5.35 per 1,000 mg sodium. Prices change often, so check the retailer.

How many calories are in Hydralyte Effervescent Electrolyte Tablets?

Hydralyte Effervescent Electrolyte Tablets has 20 kcal per serving, or 35 kcal per 12 fl oz. Carbohydrate is 5 g per serving.