SiS GO Isotonic Energy Gel 60ml

SiS GO Isotonic Energy Gel is a 60ml carbohydrate energy gel from Science in Sport (SiS). Each gel provides 22g of carbohydrate from maltodextrin and 87 kcal, in an isotonic formula that SiS designed to be taken without water. This is the original GO Isotonic gel, with no caffeine.

Key facts

• Carbohydrate: 22g per 60ml gel
• Energy: 87 kcal per gel
• Sugars: 0.6g per gel
• Carbohydrate source: maltodextrin (single source)
• Caffeine: none
• Format: isotonic gel, no water needed to take it
• Serving: one 60ml sachet
• Suitable for: vegans and vegetarians; gluten-, wheat-, lactose-, nut- and soya-free (as stated by SiS)

What does isotonic mean?

An isotonic gel is formulated at a similar concentration to the body's own fluids. SiS explains that this lets the gel leave the stomach quickly without drawing in extra fluid to dilute it, which is why GO Isotonic is designed to be taken without water. The trade-off is volume: at 60ml, it is larger than many concentrated gels that provide a similar amount of carbohydrate.

SiS describes GO Isotonic as the world's first isotonic energy gel, and it won the Queen's Award for Enterprise in 2015.

When to use

GO Isotonic is intended for use during training and racing as part of a fuelling plan. SiS suggests 1 to 3 or more gels per hour, depending on your sport and event, to work toward 60–90g of carbohydrate per hour. Three gels provide 66g.

Tear the top off the sachet and squeeze the gel into your mouth as needed. Practise your fuelling plan in training before race day, as individual tolerance varies.

Each gel contains only a trace of salt (0.01g), so it is not a hydration or electrolyte product. In hot, humid conditions, plan fluids and electrolytes separately, for example with SiS GO Hydro Tablets.

Nutrition

Typical values	Per 100ml	Per 60ml gel
Energy	613kJ / 144kcal	368kJ / 87kcal
Protein	0.0g	0.0g
Carbohydrate	36g	22g
of which sugars	1.0g	0.6g
Fat	0.1g	0.0g
of which saturates	0.0g	0.0g
Fibre	0.1g	0.0g
Salt	0.01g	0.01g

Always check the pack you receive for the most up-to-date nutrition and ingredient information.

Ingredients

Water, Maltodextrin (from Maize) (33%), Natural Flavouring, Gelling Agents (Gellan Gum, Xanthan Gum), Acidity Regulators (Citric Acid, Sodium Citrate), Preservatives (Sodium Benzoate, Potassium Sorbate), Sweetener (Acesulfame K), Sodium Chloride, Antioxidant (Ascorbic Acid).

Ingredients may vary slightly by flavour. Check the pack for the exact list.

Flavours

Flavours currently available are shown in the selector above. Each pack contains a single flavour, apart from the Assorted option.

GO Isotonic vs BETA Fuel Energy Gel

	GO Isotonic Energy Gel	BETA Fuel Energy Gel
Carbohydrate per gel	22g	40g
Carbohydrate source	Maltodextrin	Maltodextrin and fructose (1:0.8)
Positioned for	Training and racing, 1–3+ gels per hour	Higher hourly carbohydrate targets, up to 120g per hour

Which should you choose?

Choose GO Isotonic if you want a gel you can take without water, or if you prefer smaller, more frequent doses of carbohydrate. Choose SiS BETA Fuel Energy Gel if you are aiming for a higher carbohydrate intake per hour and want 40g in one gel. SiS also makes BETA Fuel + Electrolyte and BETA Fuel + Nootropics versions.

Shop SiS GO Isotonic Energy Gel in Singapore

SiS GO Isotonic Energy Gel is available from Racepack.sg in several pack sizes and flavours. Browse the full Science in Sport range or compare other running gels. To try individual gels alongside other brands, use Racepack Mix & Match.

FAQ

How many carbs are in SiS GO Isotonic Energy Gel?

Each 60ml gel contains 22g of carbohydrate and 87 kcal, with 0.6g of sugars.

Do I need to drink water with SiS GO Isotonic gels?

No. SiS designed the isotonic formula to be taken without water. You should still drink to stay hydrated during exercise, as the gel is not a hydration product.

Does SiS GO Isotonic Energy Gel contain caffeine?

No. This is the original GO Isotonic gel. SiS sells caffeine in a separate product, the GO Energy + Caffeine gel.

Does it contain electrolytes?

Only a trace. Each gel contains 0.01g of salt, so pair it with an electrolyte drink such as SiS GO Hydro Tablets if you need sodium during long or hot sessions.

How many GO Isotonic gels should I take per hour?

SiS suggests 1 to 3 or more gels per hour, depending on your sport and event, toward a target of 60–90g of carbohydrate per hour. Test your plan in training first.

What is the difference between GO Isotonic and BETA Fuel gels?

GO Isotonic provides 22g of carbohydrate from maltodextrin and is designed to be taken without water. BETA Fuel provides 40g from maltodextrin and fructose in a 1:0.8 ratio, for athletes targeting higher carbohydrate intakes per hour.

Can I buy single SiS GO Isotonic gels?

This listing sells packs. To buy individual GO Isotonic gels, or to combine them with other brands, use Racepack Mix & Match (minimum 10 items).

Where can I buy SiS GO Isotonic Energy Gel in Singapore?

You can buy SiS GO Isotonic Energy Gel from Racepack.sg. Choose your pack size and flavour above, or pick individual gels in Racepack Mix & Match. For a higher-carbohydrate option, see SiS BETA Fuel Energy Gel.