Head to head

Science in Sport GO Energy + Caffeine Gel vs Science in Sport GO Isotonic Energy Gel

Both verified against their manufacturer source and scored on the same fueling evidence. Highlighted cells are the stronger number for racing.

Science in Sport GO Energy + Caffeine GelScience in Sport GO Isotonic Energy Gel
RC Science Score73 /10073 /100
Carbohydrate21 g22 g
Sodium40 mg4 mg
Caffeine75 mg0 mg
Protein0 g0 g
Glucose:fructose
Cost per serving$2.00$2.09
Build the hour

What an hour on each looks like — and the two together

Specs tell you what is in a serving. This tells you how many servings an hour hit your target, what that delivers, what the race costs, and what you would carry. Set your own target from the finder and it follows you here.

Servings per hour to hit the target, what that delivers, and what you would carry.
Science in Sport GO Energy + Caffeine Gel
2.9 × GO Energy + Caffeine Gel / hr
61 gcarbs / hr
116 mgsodium / hr
218 mgcaffeine / hr
$23.20for the race
🎒 12 gels of Science in Sport GO Energy + Caffeine Gel
Science in Sport GO Isotonic Energy Gel
2.7 × GO Isotonic Energy Gel / hr
59 gcarbs / hr
11 mgsodium / hr
caffeine / hr
$22.40for the race
🎒 11 gels of Science in Sport GO Isotonic Energy Gel
Combo: GO Energy + Caffeine Gel + GO Isotonic Energy Gel (half each)
1.4 × GO Energy + Caffeine Gel / hr
1.4 × GO Isotonic Energy Gel / hr
60 gcarbs / hr
62 mgsodium / hr
105 mgcaffeine / hr
$22.80for the race
🎒 6 gels of Science in Sport GO Energy + Caffeine Gel
🎒 6 gels of Science in Sport GO Isotonic Energy Gel

Sodium and caffeine show what these products deliver at that rate. Your caffeine dose comes from the caffeine tool, and the drink-mix tool checks a bottle's concentration.

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 →