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.

- 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.
| Nutrient | Per label serving | Per 12 fl oz | Per liter |
|---|---|---|---|
| Calories | 20 kcal | 35 kcal | 100 kcal |
| Total carbohydrate | 5 g | 8.9 g | 25 g |
| Total sugars | 4 g | 7.1 g | 20 g |
| Added sugars | 4 g | 7.1 g | 20 g |
| Sodium | 280 mg | 497 mg | 1,400 mg |
| Potassium | 160 mg | 284 mg | 800 mg |
| Magnesium | not on label | not on label | not on label |
| Calcium | 0 mg | 0 mg | 0 mg |
| Chloride | not on label | not on label | not on label |
| Caffeine | 0 mg | 0 mg | 0 mg |
| Carbohydrate concentration | 2.5% (g per 100 ml) | ||
| Sodium to potassium ratio | 1.8 to 1 by weight | ||
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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.
Pedialyte with Immune Support Powder PacksPedialyte · Powder stick1,374 mg sodium per liter (this one: 1,400), 2.5% carbs (this one: 2.5%), 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.
Pedialyte Sport Powder PacksPedialyte · Powder stick1,374 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.
Biolyte On the Go Electrolyte PowderBiolyte · Powder stick1,543 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.
Pedialyte AdvancedCare Plus Powder PacksPedialyte · Powder stick1,374 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.
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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.