Roctane Electrolyte Capsules
serving: 1 capsule · electrolyte-only; +magnesium 9mg, chloride 125mg; no potassium by design
Texture: Capsule / tab · read from the label
How this product rates on the fueling evidence.
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GU Energy Roctane Electrolyte Capsules is an salt capsule with 140 mg of sodium per serving and no meaningful carbohydrate. It scores 51/100 on the CarbRate Science Score, which judges electrolyte products on sodium delivery, not on carbs. Pair it with a separate carbohydrate source.
Who Roctane Electrolyte Capsules suits
Runners who want a light electrolyte top-up rather than a full replacement. At 140 mg per serving, heavy sweaters will need more than one.
Runners fueling carbs from gels or chews who want electrolytes they can dose independently of energy.
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 140 mg per serving is 5 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.
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.
140 mg sodium per serving — light; you may need more than one per hour in the heat.
Sodium only — no potassium listed.
Carb-light — a clean electrolyte source you can dose independently of your carbohydrate plan.
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.
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.
Roctane Electrolyte Capsules FAQ
How much sodium is in GU Energy Roctane Electrolyte Capsules?
140 mg per serving. Sodium is the electrolyte lost in the largest amount in sweat and the one worth replacing during a race.
Does GU Energy Roctane Electrolyte Capsules 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 GU Energy Roctane Electrolyte Capsules as my only race fuel?
No. It carries no carbohydrate per serving. Use it alongside gels, chews or a carbohydrate drink mix.
Why does GU Energy Roctane Electrolyte Capsules score 51/100?
Sodium delivery: 26/55. 140 mg sodium per serving, light; you may need more than one per hour in the heat. 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.
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