Brand: SiS Science in Sport Logo
Category: Running Energy Nutrition
Recommended by Emily Fisk, Ambassador of the trail running community — Greater Philadelphia Region
Beta Fuel Gels provide elite athletes with a scientifically formulated energy solution, delivering 40g of dual-source carbohydrates to enhance endurance and accelerate recovery. Designed for long-duration activities, these gels ensure optimal performance without stomach discomfort. 1. Each gel contains 40g of fast-acting carbohydrates for immediate energy. 2. Features an optimized 1:0.8 ratio of maltodextrin to fructose for efficient energy absorption. 3. Specifically formulated for endurance activities lasting 2 hours or more, ideal for long-distance athletes. 4. Supports carbohydrate intake of 90–120g per hour, promoting sustained energy during intense efforts. 5. Enriched with Vitamin B1, B2, and B6 to aid in carbohydrate conversion and protein metabolism. 6. Unflavored option allows for easy integration with other fueling strategies without altering taste. 7. Convenient 6-pack design for easy transport and use during training or competition. Beta Fuel Gels are perfect for endurance athletes engaged in activities such as marathon running, cycling, or triathlons, where sustained energy is crucial. They excel in conditions requiring prolonged exertion, helping to maintain performance and delay fatigue. Ideal for both competitive and recreational athletes, these gels are best utilized during training sessions or races exceeding two hours.
Price: $21.99
- Who it's for
- Endurance athletes who need high-carb fueling during long training efforts and racing without GI distress. Works for both winter and summer use, though one host notes the lower sodium content suits lower-sweat conditions particularly well.
- What people are saying
- Hosts consistently praise the 40g carbs per gel, easy consumption, and stomach-friendly formula. Strawberry Lime and Orange are the most-cited standout flavors, with no notable criticism across the notes.
- Worth noting
- Texture is thicker than a liquid gel but still smooth. A glucose/fructose ratio is credited for GI tolerance; hosts suggest two per hour as a practical dosing rhythm.
Frequently asked questions
Who is the Beta Fuel Gels - Unflavored - 6 Pack for?
Endurance athletes who need high-carb fueling during long training efforts and racing without GI distress. Works for both winter and summer use, though one host notes the lower sodium content suits lower-sweat conditions particularly well.
What do experts say about the Beta Fuel Gels - Unflavored - 6 Pack?
Hosts consistently praise the 40g carbs per gel, easy consumption, and stomach-friendly formula. Strawberry Lime and Orange are the most-cited standout flavors, with no notable criticism across the notes.
What should you know before buying the Beta Fuel Gels - Unflavored - 6 Pack?
Texture is thicker than a liquid gel but still smooth. A glucose/fructose ratio is credited for GI tolerance; hosts suggest two per hour as a practical dosing rhythm.
More from Emily Fisk's 10 Products I Actually Use
View Emily Fisk's expert gear recommendations on Rendezvu
What other hosts are saying
10 experts recommend the SiS Science in Sport Logo Beta Fuel Gels - Unflavored - 6 Pack.
Jack Mislinski, Ultra Runner / Running Coach
High-carb formula with great GI tolerance thanks to a balanced glucose/fructose ratio. This is 40g and has to be my go-to gel cuz of that... 2 per hour is a sweet spot. Perfect for high-output sessions, and an athlete favorite that's trusted heavily by the SWAP squad... and who doesn't believe David and Megan?
Recommended in Fuel
Yadi Candler, Ultra Runner | UESCA Certified Ultra Running Coach
My go-to energy gel for long training efforts and racing. It provides a substantial amount of carbs to keep me going as well as great flavor.
Recommended in Nutrition
Strategic carbs with electrolytes
Recommended in Hardrock 100 Endurance Run
Keifer Gilbert, Endurance Enthusiast, Adventurer, Coach, Father, Sober Dude
Easiest gel to get down that I have found, love these things. Strawberry Lime is my favorite flavor personally
Recommended in 10 Products I Actually Use
Abigail West, Ultrarunner, Artist, & New Mom
Bonus carbs on top of Hyperlyte!
Recommended in Pregnancy & Postpartum Training Essentials
Marisa Romeo, Mental Performance Consultant
These are some of my favorite gels for training and racing. The texture is thicker than a liquid gel but still smooth and easy to consume. Strawberry Lime and Orange are excellent flavors. I especially reach for these during the winter months because their lower sodium content aligns when sweat loss is lower.
Recommended in Fueling
These are my go to racing gels. 40g of carbs that are easy on the stomach and give me good sustained energy
Recommended in Hydration & Fueling
Easiest gel to get down, tastes great, and 40G carbs per gel. How can you beat it?
Recommended in 10 Products I Actually Use
Emily Keddie, Ultra/Mountain Runner and Coach
It's the high carbs and ease of taking it in that does it for me. Quick fuel, non-offensive flavor. It takes the work out of fueling which is paramount when you just need to focus on flowing through the miles.
Recommended in Trail and Ultra Running