
GU Energy
Roctane Energy Gel (Caffeinated)
21 g of carbs in a 32 g (1.1 oz) serving, from maltodextrin and fructose.
- Carbs
- 21 g
- Serving
- 32 g1.1 oz
- Price
- $3.00 a serving
- RC Science Score
- 92out of 100
GU Energy Roctane Energy Gel (Caffeinated) has 21 g of carbs a serving and High5 Energy Gel has 23 g. Here's how they compare on weight, cost, sodium and the label, and what your race looks like on each.

GU Energy
21 g of carbs in a 32 g (1.1 oz) serving, from maltodextrin and fructose.

High5
23 g of carbs in a 40 g (1.4 oz) serving, from glucose.
numbers from each brand's label, verified by CarbRate
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GU Energy Roctane Energy Gel (Caffeinated)
High5 Energy Gel
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| Roctane Energy Gel (Caffeinated) | Energy Gel | |
|---|---|---|
| Carbohydrate | 21 g | 23 g |
| Serving weight | 32 g (1.1 oz) | 40 g (1.4 oz) |
| Calories | 100 | 91 |
| Sodium | 125 mg | 50 mg |
| Potassium | not listed | not listed |
| Caffeine | 35 mg | 0 mg |
| Protein | 0 g | 0 g |
| Carbs from | maltodextrin, fructose | glucose |
| Cost per serving | $3.00 | $1.30 |
| RC Science Score | 92 | 73 |
3 of 4 differ: gluten free and glucose + fructose and caffeine free.
GU Energy Roctane Energy Gel (Caffeinated)
High5 Energy Gel
Set your carbs an hour and race length. Both options hit the same target.
| Roctane Energy Gel (Caffeinated) | Energy Gel | Half each | |
|---|---|---|---|
| Gels an hour | 2.9 | 2.6 | 1.4 + 1.3 |
| Gels for the race | 12 | 11 | 6 + 6 |
| Weight to carry | 384 g 13.5 oz | 440 g 15.5 oz | 432 g 15.2 oz |
| Sodium an hour | 357 mg | 130 mg | 244 mg |
| Cost for the race | $34.29 | $13.57 | $23.93 |
| Half each takes half your carbs from each. | |||
Your own carbs an hour depend on your body and goal time.
Build my free planThree gels that each lead on one thing.

More carbs for the money
Applied Nutrition Energy Gel23.1 g of carbs in 60 g (2.1 oz) · $1.20
Lightest to carry
32Gi Blood Orange Energy Gel Sachet21 g of carbs in 27 g (1.0 oz) · $2.23
Most carbs per serving
Amacx Citrus Turbo Gel40 g of carbs in 60 g (2.1 oz) · $3.27CarbRate builds your fueling plan from the amount of glycogen you burn, your goal time, your course and the gels you use.