Precision Fuel & Hydration PH 500 Electrolyte Tablets
Precision Fuel & Hydration PH 500 Electrolyte Tablets has 250 mg sodium and 1 g sugar per tablet mixed with 16 fl oz (473 mL) of water. That works out to 529 mg sodium per liter as mixed, with 0.6% carbohydrate, which is in our moderate sodium band. A 12 fl oz glass has 8 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
- 529 mg
- Sugar per 12 fl oz
- 0.8 g
- Calories per 12 fl oz
- 8 kcal
- Caffeine per serving
- 0 mg
- Cost per serving
- $0.80
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 | 10 kcal | 8 kcal | 21 kcal |
| Total carbohydrate | 3 g | 2.3 g | 6.3 g |
| Total sugars | 1 g | 0.8 g | 2.1 g |
| Added sugars | 1 g | 0.8 g | 2.1 g |
| Sodium | 250 mg | 188 mg | 529 mg |
| Potassium | 130 mg | 98 mg | 275 mg |
| Magnesium | 10 mg | 7.5 mg | 21 mg |
| Calcium | 20 mg | 15 mg | 42 mg |
| Chloride | not on label | not on label | not on label |
| Caffeine | 0 mg | 0 mg | 0 mg |
| Carbohydrate concentration | 0.6% (g per 100 ml) | ||
| Sodium to potassium ratio | 1.9 to 1 by weight | ||
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Serving and mixing
- Label serving
- 1 tablet (4.5g)
- Finished drink per serving
- 16 fl oz (473 mL)
- Servings per container
- 15
- How to mix
- 1 tablet in 16 fl oz (473 ml) water (US page directions). Brand names strengths by sodium per litre / per 32 oz, not per tablet.
Flavors
- Single flavour (not named by brand)
Every flavor listed shares the same nutrition panel in our records.
Ingredients
Dextrose Monohydrate, Citric Acid, Sodium Bicarbonate, Potassium Bicarbonate, Sodium Citrate, Natural Flavors, Polyethylene Glycol, Sodium Carbonate, Malic Acid, Calcium Carbonate, Magnesium Carbonate, Sucralose.
Closest alternatives
The nearest products by sodium per liter, carb % and format. Other brands come first.
- Sodium per liter, Nuun Energy Caffeine + B Vitamins: 634 mg/L, in the Moderate band (230 to 920 mg/L). Scale 0 to 2,500 mg/L.
Nuun Energy Caffeine + B VitaminsNuun · Tablet634 mg sodium per liter (this one: 529), 0.8% carbs (this one: 0.6%), same format.
- Sodium per liter, Nuun Sport: 634 mg/L, in the Moderate band (230 to 920 mg/L). Scale 0 to 2,500 mg/L.
Nuun SportNuun · Tablet634 mg sodium per liter (this one: 529), 0.8% carbs (this one: 0.6%), same format.
- Sodium per liter, GU Hydration Drink Tabs: 677 mg/L, in the Moderate band (230 to 920 mg/L). Scale 0 to 2,500 mg/L.
GU Hydration Drink TabsGU Energy Labs · Tablet677 mg sodium per liter (this one: 529), 0.6% carbs (this one: 0.6%), same format.
- Sodium per liter, Nuun Zero Sugar: 423 mg/L, in the Moderate band (230 to 920 mg/L). Scale 0 to 2,500 mg/L.
Nuun Zero SugarNuun · Tablet423 mg sodium per liter (this one: 529), 0.8% carbs (this one: 0.6%), same format.
Compared in
Where this data comes from
Nutrition values come from the brand's nutrition label image. We could not find this product in USDA FoodData Central, so the label is the only source. See the Precision Fuel & Hydration 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 Precision Fuel & Hydration PH 500 Electrolyte Tablets?
Precision Fuel & Hydration PH 500 Electrolyte Tablets has 250 mg sodium per tablet mixed with 16 fl oz (473 mL) of water. That is 188 mg per 12 fl oz and 529 mg per liter, which puts it in our moderate sodium band.
Does Precision Fuel & Hydration PH 500 Electrolyte Tablets have caffeine?
No. Every flavor of Precision Fuel & Hydration PH 500 Electrolyte Tablets we checked lists 0 mg caffeine.
Is Precision Fuel & Hydration PH 500 Electrolyte Tablets sugar-free?
No. Precision Fuel & Hydration PH 500 Electrolyte Tablets has 1 g sugar per serving, or 0.8 g per 12 fl oz. It also contains sucralose.
How much does Precision Fuel & Hydration PH 500 Electrolyte Tablets cost per serving?
About $0.80 per serving, based on $11.99 for Tube of 15 tablets at Precision Fuel & Hydration (US store) on Sep 24, 2026. That is $3.20 per 1,000 mg sodium. Prices change often, so check the retailer.
How many calories are in Precision Fuel & Hydration PH 500 Electrolyte Tablets?
Precision Fuel & Hydration PH 500 Electrolyte Tablets has 10 kcal per serving, or 8 kcal per 12 fl oz. Carbohydrate is 3 g per serving.