Science in Sport Beta Fuel Gel

40 g carbs per 1 gel (60 ml) · 1:0.8 maltodextrin:fructose. Graded for five standard jobs below — the same product fits some jobs and not others.

dual-sourcebatch-tested (informed-sport)
Check it for your own job →

Job fit

Beta Fuel Gel works when the job is Marathon, 70.3, IRONMAN, Century / gran fondo, Ultra.

Marathon
3.5 h · race · target 80 g/h → 2/h
A
✓ dual-source 1:0.8 · absorbs at 80 g/h✓ gut-friendly✓ 2/h · easy to carryℹ caffeine not statedℹ sodium not statedℹ ~200 ml water per gel
70.3
5.5 h · race · target 90 g/h → 2.3/h
A
✓ dual-source 1:0.8 · absorbs at 90 g/h✓ gut-friendly✓ 2.3/h · easy to carryℹ caffeine not statedℹ sodium not statedℹ ~200 ml water per gel
IRONMAN
12 h · race · target 90 g/h → 2.3/h
A
✓ dual-source 1:0.8 · absorbs at 90 g/h✓ gut-friendly✓ 2.3/h · easy to carryℹ caffeine not statedℹ sodium not statedℹ ~200 ml water per gel
Century / gran fondo
5 h · steady · target 80 g/h → 2/h
A
✓ dual-source 1:0.8 · absorbs at 80 g/h✓ gut-friendly✓ 2/h · easy to carryℹ caffeine not statedℹ sodium not statedℹ ~200 ml water per gel
Ultra
10 h · steady · target 80 g/h → 2/h
A
✓ dual-source 1:0.8 · absorbs at 80 g/h✓ gut-friendly✓ 2/h · easy to carryℹ caffeine not statedℹ sodium not statedℹ ~200 ml water per gel

Grades: A–E from absorption (35 %), gut (30 %), practicality (15 %), caffeine (10 %) and your preferences (10 %); a ✗ on absorption or gut caps at C. Sodium and tonicity are shown as ℹ and never change the grade.

What is in it

Label facts, not a score. Apply your own preferences in the checker.

Format
Gel
Unit
1 gel (60 ml)
Carbohydrate
40 g
Carb sources (label order)
maltodextrin, fructose
Glucose:fructose
1:0.8 maltodextrin:fructose · ~44 % fructose (declared)
Sodium
not stated
Potassium
not stated
Caffeine
not stated
Protein / fat / fibre
not stated / not stated / not stated
Sugar alcohols
none listed
Sweeteners
none listed
Allergens
not stated
Vegan / gluten-free
not stated / not stated
Batch-tested
informed sport
Tonicity
hypertonic

The maker positions it for 80–120 g/h (1–3 gels an hour). The "+ Nootropics" variant is the caffeinated one; caffeine is not stated for the plain gel on the page checked.

From the manufacturer's page, checked 2026-09-18 · source. Labels change; read the pack. Not medical advice; not affiliated with the brand.

How many Science in Sport Beta Fuel Gel per hour do I need?

At 40 g carbs per 1 gel (60 ml): about 1.5 per hour for 60 g/h and 2.3 per hour for 90 g/h. Use the fuel checker to set your own job.

Is Science in Sport Beta Fuel Gel dual-source (glucose and fructose)?

Yes — 1:0.8 maltodextrin:fructose (declared), about 44 % fructose, which is in the range that absorbs at 90 g/h and beyond.

Does Science in Sport Beta Fuel Gel contain caffeine?

Caffeine is not stated on the source we checked — read the pack.

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