Skip to content

Your Cart

Updating your cart...

Subscribe to xmiles-plus for FREE priority shipping | Learn more

Tadej Pogačar Pack
Tadej Pogačar Pack
Fuel your Tour
£3.00 £8.88
GU Roctane Gels
GU Roctane Gels
3 x Cold Brew for £4
£4.00 £9.90
PROBAR Meal Bar
PROBAR Meal Bar
4 for £7
£7.00 £11.96
TORQ Explore Flapjacks
TORQ Explore Flapjacks
3 for £4
£4.00 £7.05
No Gut Bombs
No Gut Bombs
3 gels for £3.50
£3.50 £5.85
GU Roctane Gels
GU Roctane Gels
10 for £13
£13.00 £33.00

Your cart is empty.

Log into your XMiles account here and view your store credit
Subtotal
Secure checkouts with / /

Carb Max Boost Energy Gel

Shop GoldNutrition

Carb Max Boost Energy Gel is designed for athletes who need maximum energy support during long or high-intensity sessions. Each gel delivers a powerful 40g dose of fast-release carbohydrates, combined with caffeine, to help delay physical and mental fatigue when performance really matters. It is ideal for endurance sports and stop-start activities where energy demands can spike suddenly.

  • Provides 40g of fast-release carbohydrates per gel
  • Helps delay physical and mental fatigue during endurance exercise
  • Supports stable blood sugar levels during long sessions
  • Includes caffeine for added focus and performance support
  • Formulated to reduce gastrointestinal discomfort
  • Suitable for endurance and high-intensity sports
XPlus Member exclusive price

Carb Max Boost Energy Gel

Shop GoldNutrition

£2.85
Mix & Match

or 3 interest-free payments of with

Klarna
Size:
Flavour:
Notify Me When Available
BBE
One-time purchase
Subscribe & save 10%
Free UK delivery
Pause or cancel anytime
Easy returns
Translation missing: en.general.icons.icon_check_circle icon 264 in stock, ready to be dispatched

Want it faster? Select fast shipping or DPD next day at checkout

Standard delivery is delivered via Royal Mail within 3–5 working days. Alternatively, select 24/7 InPost Lockers for a flexible pick-up option.

About Carb Max Boost Energy Gel

This gel is built to help maintain blood glucose levels during prolonged exercise, supporting consistent energy output and focus. Whether you are deep into a marathon, pushing the pace on the bike, or working through repeated high-intensity efforts, Carb Max Boost helps keep energy levels stable when glycogen stores begin to drop.

The carbohydrate blend has been carefully selected to support rapid absorption while remaining gentle on the stomach. By combining different carbohydrate sources, the gel delivers fast energy without unnecessary digestive stress, making it a reliable option for training and race day.

Carb Max Boost Energy Gel is suitable for cyclists, runners, triathletes, and team sport athletes taking part in sessions lasting over one hour, or sports that include repeated bursts of intensity such as football or rugby.

How does it work

During prolonged or intense exercise, carbohydrates become the primary fuel source once muscle glycogen stores begin to decline. Carb Max Boost Energy Gel supplies fast-acting carbohydrates to help delay glycogen depletion, allowing athletes to sustain effort and maintain power output for longer.

The formula combines maltodextrin and fructose, enabling efficient carbohydrate absorption through multiple transport pathways. Maltodextrin supports rapid gastric emptying and reduces gastrointestinal stress, while fructose complements absorption when higher carbohydrate intake is required. The inclusion of cyclodextrins helps promote a more controlled energy release, limiting sharp blood glucose spikes and supporting smoother, longer-lasting performance.

Nutrition information

Variant Single Serve / Vanilla Berries

Serving size 1 Gel

Net weight Liquid error (sections/xmiles-product line 1239): Invalid number

Servings per container 1

Nutrition information for Carb Max Boost Energy Gel
Nutrient Per serving
Calories 161kcal
Fat 0g
Carbohydrate 40g
of which sugars 22g
Fibre 0g
Protein 0g
Salt 10mg
Caffeine 100mg

Ingredients

Directions of use

Take 1 to 2 gels per hour during endurance exercise, alongside sufficient water.

About GoldNutrition

We believe that good nutrition has the power to inspire change, goals and desires and has a great influence on our life paths. We take an active part in the process of innovation and development with formulas that meet the needs of our public. Because quality is in the brand's DNA.
Shop GoldNutrition

Tried and tested

What athletes think

Real feedback from the XMiles community.

Loading reviews…