← All fuel
Science in Sport

GO Hydro Electrolyte Tablets

✓ VerifiedelectrolyteVeganGluten-freeCaffeine-free

serving: 1 tab in 500ml · Cola variant is caffeinated (amount not stated)

Texture: Capsule / tab · read from the label

80/100 Science Score

How this product rates on the fueling evidence.

★★★★★Runner reports

No reports yet. Be the first ↓

Carbohydrate
0 g
Sodium
345 mg
Caffeine
0 mg
The short version

Science in Sport GO Hydro Electrolyte Tablets is an electrolyte with 345 mg of sodium per serving and no meaningful carbohydrate. It scores 80/100 on the CarbRate Science Score, which judges electrolyte products on sodium delivery, not on carbs. Pair it with a separate carbohydrate source.

Fit

Who GO Hydro Electrolyte Tablets suits

Heavy sweaters, long hot races, and anyone whose shirt dries with white salt lines. 345 mg per serving is a meaningful replacement dose.

Runners fueling carbs from gels or chews who want electrolytes they can dose independently of energy.

Runners with dietary limits: it is vegan and gluten-free according to the manufacturer.

Race day

How to use it in a race

Dose by sweat rate, not by the packet. Heavy sweaters in heat may need 500 to 1000 mg of sodium per hour, which at 345 mg per serving is 2 servings an hour as a middle estimate.

Take it with water, and take it on a schedule from the first hour rather than waiting for cramps or a headache. Sodium has no effect on cramping, but it does keep you drinking and keeps plasma volume up.

Servings per hour assume the 0 g per serving on the label. The finder sets your own g/hr target from race distance, sweat and gut.

RC Science Score · 80/100

Why it scores what it does

Computed from verified label data with the same evidence rules for every product. Retailer relationships play no part in the score.

Sodium delivery55/55

345 mg sodium per serving — a meaningful electrolyte dose for heavy sweat loss.

Full electrolyte profile0/20

Sodium only — no potassium listed.

Purpose-built (carb-light)25/25

Carb-light — a clean electrolyte source you can dose independently of your carbohydrate plan.

More like this

If this one works, try these next

Closest fueling profiles in the database (same format, carb sources, glucose:fructose and caffeine), with the one thing each does differently. Test two, not twenty.

Field reports

How it went for runners like you

No reports yet. If you have raced or trained on this one, thirty seconds from you is the first data point for the next runner with your gut and your conditions.

Questions runners ask

GO Hydro Electrolyte Tablets FAQ

How much sodium is in Science in Sport GO Hydro Electrolyte Tablets?

345 mg per serving. Sodium is the electrolyte lost in the largest amount in sweat and the one worth replacing during a race.

Does Science in Sport GO Hydro Electrolyte Tablets help with cramping?

No. Sodium and electrolytes have no effect on exercise cramping in controlled studies; cramping tracks with muscle fatigue and pace. Electrolytes are still worth taking for fluid balance in long hot races.

Can I use Science in Sport GO Hydro Electrolyte Tablets as my only race fuel?

No. It carries no carbohydrate per serving. Use it alongside gels, chews or a carbohydrate drink mix.

Is Science in Sport GO Hydro Electrolyte Tablets vegan and gluten-free?

Vegan: yes. Gluten-free: yes. Both come from the manufacturer's published data.

Why does Science in Sport GO Hydro Electrolyte Tablets score 80/100?

Sodium delivery: 55/55. 345 mg sodium per serving, a meaningful electrolyte dose for heavy sweat loss. Full electrolyte profile: 0/20. Sodium only, no potassium listed. Purpose-built (carb-light): 25/25. Carb-light, a clean electrolyte source you can dose independently of your carbohydrate plan.

Compare it

Turn this into a real race plan

CarbRate builds a course-aware, minute-by-minute fueling plan for your exact race, body, and conditions — then guides you through it live on race day.

Build my plan →