GO Energy + Caffeine Gel
serving: 1 gel (60ml) · values via Running Warehouse
Texture: Thick gel · read from the label
How this product rates on the fueling evidence.
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Science in Sport GO Energy + Caffeine Gel is a gel with 21 g of carbohydrate, 40 mg of sodium and 75 mg of caffeine per serving. It scores 73/100 on the CarbRate Science Score. At 60 g of carbs per hour that is 3 servings an hour.
Who GO Energy + Caffeine Gel suits
Runners fueling below about 60 g per hour. Without a fructose source, absorption tops out near 60 g/hr, so stacking servings past that point tends to cause gut trouble rather than more energy.
Runners who prefer small, frequent doses. 21 g per serving means more servings per hour, which some stomachs handle better than one large hit.
Runners who use caffeine during a race. 75 mg per serving is a moderate dose, close to a small coffee; count total intake if you take several.
Runners who handle sodium separately. At 40 mg per serving this is a carbohydrate source first, so heavy sweaters will want electrolytes from a drink or capsule alongside it.
Runners with dietary limits: it is vegan and gluten-free according to the manufacturer.
How to use it in a race
Start early. Take the first serving 15 to 20 minutes into the race, before you feel you need it, and repeat on a fixed clock. At 60 g/hr that is 3 servings per hour; at 90 g/hr it is 4.5.
Thick gel texture. Take it with two or three mouthfuls of water so the carbohydrate is diluted enough to leave the stomach quickly.
Practice it on long runs at race intensity before you race on it. Gut tolerance is trained; a fuel that felt fine at easy pace can behave differently at marathon effort.
Cost at 60 g/hr works out to about $5.71 per hour at list price, or roughly $20 for a three-and-a-half hour marathon.
Servings per hour assume the 21 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.
Single-source glucose/maltodextrin — reliable, but absorption is capped near 60 g/h without added fructose.
21 g carbs per serving — a full working dose for a gel.
No protein — ideal for during-race carbohydrate delivery (nothing slowing gastric emptying).
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.
GO Energy + Caffeine Gel FAQ
Is Science in Sport GO Energy + Caffeine Gel good for a marathon?
It works for a marathon at moderate intake. It uses a single carbohydrate pathway, so keep it near 60 g per hour or pair it with a fructose-containing product if you fuel higher. Practice it on at least two long runs first.
How many GO Energy + Caffeine Gel should I take per hour?
3 servings per hour gets you 60 g of carbohydrate; 4.5 gets you 90 g. Each serving is 21 g. Space them evenly rather than front-loading.
Does Science in Sport GO Energy + Caffeine Gel have caffeine?
Yes, 75 mg per serving. Count it toward your total for the race; 3 to 6 mg per kg of body weight is the range studied for performance.
How much sodium is in Science in Sport GO Energy + Caffeine Gel?
40 mg per serving, which is low for a gel. Heavy sweaters should add an electrolyte source.
Is Science in Sport GO Energy + Caffeine Gel vegan and gluten-free?
Vegan: yes. Gluten-free: yes. Both come from the manufacturer's published data.
Why does Science in Sport GO Energy + Caffeine Gel score 73/100?
Carbohydrate quality: 22/45. Single-source glucose/maltodextrin, reliable, but absorption is capped near 60 g/h without added fructose. Carbohydrate dose: 20/20. 21 g carbs per serving, a full working dose for a gel. Race-appropriate (protein-light): 20/20. No protein, ideal for during-race carbohydrate delivery (nothing slowing gastric emptying).
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