During-effort fuel · electrolyte · reviewed 28 Aug 2026
Hammer Nutrition Endurolytes Fizz 54
A full four-electrolyte tablet — 200 mg sodium, 100 mg calcium, 50 mg magnesium — plus a declared 13 mg (650% DV) of vitamin B-6 that nothing else in this set quantifies, at $2.67 per 1000 mg of sodium, the highest cost-per-dose of any electrolyte product here.
Score breakdown
The overall score is the average of what's below, each measured against every other electrolyte we've reviewed.
54
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.20
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).18
Potassium ?Potassium per serving, on a scale topping out at 200 mg — roughly the upper end of typical hourly sweat loss.50
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.100
Magnesium ?Magnesium per serving, on a scale topping out at 60 mg, roughly matching cited hourly sweat-loss ranges.83
Cost per 1000mg sodium
$2.65/1000mg
Sodium per tablet
200mg
Comparison
6 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 | Hammer Nutrition Hammer Nutrition Endurolytes Fizz | LMNT LMNT Citrus Salt | Nuun Nuun Sport | Precision Fuel & Hydration Precision Fuel & Hydration PH 1000 | 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. | 200 mg | 1000 mg | 300 mg | 500 mg | 345 mg | 250 mg |
| PotassiumWorks alongside sodium in muscle and nerve function. | 100 mg | 200 mg | 150 mg | 130 mg | 65 mg | 70 mg |
| CalciumInvolved in muscle contraction; lost in far smaller amounts than sodium. | 100 mg | 0 mg | 13 mg | 20 mg | 102 mg | 10 mg |
| MagnesiumSupports muscle and nerve function; some evidence it blunts cramping. | 50 mg | 60 mg | 25 mg | 10 mg | 8.1 mg | 50 mg |
| CarbohydrateMinimal by design. This is a hydration product, not a fuel source. | 1 g | 0 g | 4 g | 3 g | 0.9 g | 0 g |
| Price per tabletWhat one tablet costs. | $0.53 | $1.50 | $0.75 | $1.20 | $0.75 | $0.27 |
| Cost per 1000mg sodiumThe only price that compares across different sodium concentrations. | $2.65 | $1.50 | $2.50 | $2.40 | $2.17 | $1.08 |
Verdict
what it does · what it costsWhat it does well
- 100 mg of calcium a tablet, second only to SiS GO Hydro's 102 mg.
- 50 mg of magnesium, tied with 4Endurance for the second-highest dose behind LMNT's 60 mg.
- Breaks in half at the center for a smaller, titratable dose — a physical feature none of the other tablets here have.
What it costs you
- $2.67 per 1000 mg of sodium is the most expensive way to that dose in this set, ahead of Nuun Sport's $2.50.
- 200 mg of sodium a tablet is mid-pack; you need five tablets to match LMNT's single-stick dose.
- Carbohydrate is only declared as "<1 g," not an exact figure, unlike SiS GO Hydro's stated 0.9 g.
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 calcium and magnesium alongside sodium in one tablet and don't mind paying the field's highest per-dose cost for it.
- You want a tablet you can physically split for a smaller dose.
Look elsewhere if
- You're optimizing purely for cost per 1000 mg of sodium.
- You want a single tablet to carry a large sodium dose; 200 mg means many tablets across a long day.