Science in Sport (SiS) is a go-to name in endurance fuelling, trusted by runners, cyclists, and triathletes. At Fuel Supplements the range centres on two lines: GO Isotonic Energy Gels — designed to be taken without water — and the dual-carb Beta Fuel series in both 60 mL gels and energy chews, available as singles, 6-packs, and full boxes of 30.
Science in Sport FAQ & Buying Guide
What are SiS's most popular products at Fuel Supplements?
The GO Isotonic Energy Gel singles and Beta Fuel gels lead the way, with flavours like Orange, Lemon Lime, Tropical, and Strawberry & Lime. Serious mileage buyers usually go straight to the 30-count boxes.
What's the difference between GO Isotonic and Beta Fuel?
GO Isotonic is the lighter everyday training gel — its isotonic formula means no water needed. Beta Fuel carries a bigger carbohydrate payload per gel and is built for long races and high-output sessions; it also comes as a chew if you prefer solid fuel.
How many energy gels should I take during a workout?
A common approach is one gel every 20–30 minutes during efforts longer than about an hour, adjusted to your gut tolerance — practise your fuelling in training, never on race day. Follow the guidance on each pack.
Does Fuel Supplements ship Science in Sport across Canada?
Yes. SiS gels and chews ship Canada-wide from our BC warehouses, free on orders over $100, with same-day pickup in Port Coquitlam.
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