FastChews
serving: 2 tablets · chewable; caffeinated flavors (Citrus Burst/Tropical Twist) carry 15mg
Texture: Capsule / tab · Flavor family: Several flavors · read from the label
How this product rates on the fueling evidence.
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SaltStick FastChews is an salt capsule with 100 mg of sodium and 30 mg of potassium per serving and 2 g of carbohydrate. It scores 63/100 on the CarbRate Science Score, which judges electrolyte products on sodium delivery, not on carbs. Pair it with a separate carbohydrate source.
Who FastChews suits
Runners who want a light electrolyte top-up rather than a full replacement. At 100 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.
Runners with dietary limits: it is vegan and gluten-free according to the manufacturer.
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 100 mg per serving is 7 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 2 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.
100 mg sodium per serving — light; you may need more than one per hour in the heat.
Includes potassium (30 mg) alongside sodium.
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.
FastChews FAQ
How much sodium is in SaltStick FastChews?
100 mg per serving, plus 30 mg of potassium. Sodium is the electrolyte lost in the largest amount in sweat and the one worth replacing during a race.
Does SaltStick FastChews 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 SaltStick FastChews as my only race fuel?
No. It carries only 2 g of carbohydrate per serving. Use it alongside gels, chews or a carbohydrate drink mix.
Is SaltStick FastChews vegan and gluten-free?
Vegan: yes. Gluten-free: yes. Both come from the manufacturer's published data.
Why does SaltStick FastChews score 63/100?
Sodium delivery: 18/55. 100 mg sodium per serving, light; you may need more than one per hour in the heat. Full electrolyte profile: 20/20. Includes potassium (30 mg) alongside sodium. Purpose-built (carb-light): 25/25. Carb-light, a clean electrolyte source you can dose independently of your carbohydrate plan.
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