Free Shipping
on all orders
Delivery TimeShipping Method
1 - 5 business daysFREE Standard Delivery
2 business daysFedEx 2Day
1 business dayFedEx Overnight

Carriers

fedex shipping logoups shipping logousps shipping logo
 
LoginCreate an account
Change country

SiS Beta Fuel Energy Chews

Visit the Science in Sport Store
Review Rating: 4.8 /5
(170 reviews)
 
 

SiS Beta Fuel Energy Chews

The Carb-Dense Game Changer

Finally, a sports chew that doesn’t mess around. The SiS Beta Fuel packs 45 g of carbohydrates into just two bars – that’s 30-50% more than any other chew on the market. No more fumbling with handfuls of tiny pieces mid-workout.

The Science That Actually Works 

The magic is in the 1:0.8 glucose-to-fructose ratio. This isn’t marketing fluff – it’s a complete rethink of how your body processes fuel. By using different absorption pathways, your muscles get fed without your gut getting wrecked.

The numbers speak for themselves: 74% carbohydrate oxidation efficiency (up from 62% with the old 2:1 ratio) and significantly less stomach fullness.

Translation: more energy, less bloating, better performance.

Dead Simple Fueling

Pop one chew every 30-45 minutes during anything over 90 minutes. Whether you're grinding through a century ride, logging trail miles, or pushing through overtime, these bars deliver consistent energy without the guesswork.

Two bars. 45 g carbs. Zero excuses.

  • Sport Tested: Informed Sport
    Nutrition Facts

    SiS Beta Fuel Energy Chews Reviews

    SiS Beta Fuel Energy Chews Questions