During-effort fuel · electrolyte · reviewed 3 Sep 2026
PH 250 24
Half PH 500's sodium per tablet (125 mg vs 250 mg) but priced about the same per tube, which makes it the most expensive tablet in Precision's own range per dose: $5.36 per 1000mg of sodium, against $3.20 for PH 500 and $1.60 for PH 1500.
Score breakdown
Each dimension below is scored 0 to 100 against a fixed scale, not against the rest of the catalog, so adding a product never moves this number. The overall score is the average of the dimensions this product declares data for. How the scales are set →
24/100
Weak
Sodium dose ?Sodium per serving, on a scale topping out at 1000 mg -- a single dose covering the top of what's typically lost to sweat in an hour.13
Value (cost/1000mg Na) ?What it costs to get 1000 mg of sodium from this product. Not physiological -- a market-based scale from $3.00 (0) to $1.00 (100).0
Potassium ?Potassium per serving, on a scale topping out at 200 mg -- roughly the upper end of typical hourly sweat loss.63
Calcium ?Calcium per serving. Weaker grounding than sodium/potassium -- sweat calcium loss is minor and not really a primary target during exercise; the 100 mg ceiling is this catalog's practical high end, not a physiological one.24
Magnesium ?Magnesium per serving, on a scale topping out at 60 mg, roughly matching cited hourly sweat-loss ranges.20
Cost per 1000mg sodium
$5.36/1000mg
Sodium per tablet
125mg
Comparison
6 of 14 electrolytes heldPrices per single sachet at the cheapest box size we track. Best in green, worst in red, across the gels shown.
| Measure | Precision Fuel & Hydration PH 250 | LMNT LMNT Citrus Salt | Nuun Nuun Sport | Precision Fuel & Hydration Precision Fuel & Hydration PH 1000 | Science in Sport SiS GO Hydro | 4Endurance 4Endurance Electrolytes |
|---|---|---|---|---|---|---|
| Overall scoreAn average of the various variables measured. | 24 | 75 | 37 | 36 | 44 | 50 |
| SodiumThe main electrolyte lost in sweat, and the biggest single driver of cramping and hyponatremia risk. | 125 mg | 1000 mg | 300 mg | 500 mg | 345 mg | 250 mg |
| PotassiumWorks alongside sodium in muscle and nerve function. | 125 mg | 200 mg | 150 mg | 130 mg | 65 mg | 70 mg |
| CalciumInvolved in muscle contraction; lost in far smaller amounts than sodium. | 24 mg | 0 mg | 13 mg | 20 mg | 102 mg | 10 mg |
| MagnesiumSupports muscle and nerve function; some evidence it blunts cramping. | 12 mg | 60 mg | 25 mg | 10 mg | 8.1 mg | 50 mg |
| CarbohydrateMinimal by design. This is a hydration product, not a fuel source. | not declared | 0 g | 4 g | 3 g | 0.9 g | 0 g |
| Price per tabletWhat one tablet costs. | $0.67 | $1.50 | $0.75 | $1.20 | $0.75 | $0.27 |
| Cost per 1000mg sodiumThe only price that compares across different sodium concentrations. | $5.36 | $1.50 | $2.50 | $2.40 | $2.17 | $1.08 |
Verdict
what it does · what it costsWhat it does well
- The lowest sodium dose in Precision's tablet range, useful for cool-weather or day-to-day hydration rather than a heat-training dose.
- Potassium matches sodium 1:1 at 125mg, plus 24mg calcium and 12mg magnesium per tablet, a broader mineral spread relative to sodium than the brand's higher-strength tiers.
- Same effervescent tablet format and independent WADA-list batch testing as the rest of the PH range.
- Mild citrus flavor and near-zero calories; positioned by the brand as a daily hydration tablet rather than a race product.
What it costs you
- $5.36 per 1000mg of sodium is the worst value of any Precision tablet in this catalog: PH 500 is $3.20, PH 1000 is $2.40, PH 1500 is $1.60. The lower dose doesn't come with a proportionally lower price.
- Not carried by Running Warehouse or The Feed, the two US retailers that stock PH 500/1000/1500. Pricing here is converted from Precision's EUR listing (a tube of 15 for EUR9.99) and US availability is unconfirmed.
- Exact calories and total carbohydrate per tablet aren't published for this specific SKU. PH 500 discloses 10 kcal / 3g carb per tablet on its US Nutrition Facts panel; PH 250's own page and every retailer checked list only the electrolyte minerals.
- A PH 250-specific ingredients list could not be independently verified; see the ingredients note above.
Where to buy
Prices and links as last checked. The price next to the name above is per unit at the cheapest box size we track -- a single-unit price below may run higher.
Not yet checked at retail.
Who this is for
the numbers, appliedThe field tells you what it is. This is who should act on it.
Worth the money if
- You want the lowest sodium dose Precision sells, for cool-weather sessions or everyday hydration rather than heavy sweat loss.
- You already buy PH 500/1000/1500 and want a lighter tier for easy days, and don't mind ordering from Precision's international site.
Look elsewhere if
- You want the best cost per 1000mg of sodium in Precision's range; PH 1500 beats this tablet by more than 3x on that measure.
- You need guaranteed US retail availability and pricing.