During-effort fuel · electrolyte · reviewed 26 Aug 2026
Precision Fuel & Hydration PH 1000 36
Named for what it delivers: 500 mg of sodium a tablet, exactly 1000 mg per liter at the stated dilution, sitting squarely between LMNT and Nuun on both dose and price.
Score breakdown
The overall score is the average of what's below, each measured against every other electrolyte we've reviewed.
36
Mixed
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.50
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).30
Potassium ?Potassium per serving, on a scale topping out at 200 mg — roughly the upper end of typical hourly sweat loss.65
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.20
Magnesium ?Magnesium per serving, on a scale topping out at 60 mg, roughly matching cited hourly sweat-loss ranges.17
Cost per 1000mg sodium
$2.40/1000mg
Sodium per tablet
500mg
Comparison
5 of 11 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 Precision Fuel & Hydration PH 1000 | LMNT LMNT Citrus Salt | Nuun Nuun Sport | Science in Sport SiS GO Hydro | 4Endurance 4Endurance Electrolytes |
|
|---|---|---|---|---|---|---|
| SodiumThe main electrolyte lost in sweat, and the biggest single driver of cramping and hyponatremia risk. | 500 mg | 1000 mg | 300 mg | 345 mg | 250 mg | |
| PotassiumWorks alongside sodium in muscle and nerve function. | 130 mg | 200 mg | 150 mg | 65 mg | 70 mg | |
| CalciumInvolved in muscle contraction; lost in far smaller amounts than sodium. | 20 mg | 0 mg | 13 mg | 102 mg | 10 mg | |
| MagnesiumSupports muscle and nerve function; some evidence it blunts cramping. | 10 mg | 60 mg | 25 mg | 8.1 mg | 50 mg | |
| CarbohydrateMinimal by design. This is a hydration product, not a fuel source. | 3 g | 0 g | 4 g | 0.9 g | 0 g | |
| Price per tabletWhat one tablet costs. | $1.20 | $1.50 | $0.75 | $0.75 | $0.27 | |
| Cost per 1000mg sodiumThe only price that compares across different sodium concentrations. | $2.40 | $1.50 | $2.50 | $2.17 | $1.08 |
Verdict
what it does · what it costsWhat it does well
- 500 mg of sodium a tablet, a clean middle dose between the lightest and heaviest products here.
- All four electrolytes declared, including a meaningful 20 mg of calcium.
- Part of a branded system (PH 500/1000/1500) if you want to size up or down by sweat rate.
What it costs you
- $2.40 per 1000mg of sodium, more than SiS GO Hydro or 4Endurance for the same dose.
- 10 mg of magnesium is the lowest of the tablets that declare it.
- Sold in tubes of 10 rather than 20, a smaller bulk size than Nuun or SiS.
Where to buy
Prices and links as last checked.
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 a mid-range sodium dose without going as high as LMNT.
- You've already sized your sweat rate against Precision's PH system.
Look elsewhere if
- You want the lowest cost per 1000mg of sodium.
- You want the largest tube size to minimize reorders.