Brand: Blank's Sports Nutrition

    Category: Running Energy Nutrition

    Recommended by Grant Colligan, Pro Mountain Runner — Colorado, USA

    Elevate your endurance game with Blank's Custom Gel Builder, a versatile 1kg powdered gel mix designed for athletes seeking tailored nutrition solutions. Experience rapid energy delivery and customizable fueling strategies that keep you performing at your best. 1. Customizable formulation allows you to adjust flavor strength, electrolyte content, caffeine levels, and viscosity to match your personal preferences. 2. Hydrogel technology ensures fast absorption of carbohydrates, providing quick energy without gastrointestinal discomfort. 3. Environmentally friendly design reduces waste compared to traditional single-use gels, making it a sustainable choice for athletes. 4. Ideal for a variety of endurance activities, including marathons, ultra races, and long cycling sessions, ensuring you stay energized throughout. 5. Engineered by athletes for athletes, ensuring real-world performance and reliability during training and competition. 6. Comes in a convenient 1kg package, perfect for multiple uses and easy storage. 7. Special promotion: Add a Gel Flask to your cart and use code "firstflaskfree" to receive it at no extra cost with your gel mix purchase. The Custom Gel Builder is designed for endurance athletes looking to optimize their nutrition strategy during training and competition. It performs best in long-duration activities where consistent energy is crucial, such as marathons, triathlons, and extended cycling events. Suitable for all skill levels, this product excels in various conditions, whether you're training in warm weather or competing in challenging environments. Tailor your fueling approach to meet your unique performance goals and enhance your athletic experience year-round.

    Price: $45

    Grant Colligan's review

    My go-to drink mix, I use 750 mg of salt, 75 grams of carbs, and usually watermelon or mango flavoring. Custom mix for a great price.

    Recommended by Grant Colligan, Pro Mountain Runner

    Frequently asked questions

    What does Grant Colligan say about the Custom Gel Builder (1kg)?

    My go-to drink mix, I use 750 mg of salt, 75 grams of carbs, and usually watermelon or mango flavoring. Custom mix for a great price.

    Why does Grant Colligan recommend Blank's Sports Nutrition?

    Grant Colligan recommends the Blank's Sports Nutrition Custom Gel Builder (1kg) for running energy nutrition. My go-to drink mix, I use 750 mg of salt, 75 grams of carbs, and usually watermelon or mango flavoring. Custom mix for a great price.

    Is the Custom Gel Builder (1kg) a good running energy nutrition?

    Yes — Grant Colligan recommends the Custom Gel Builder (1kg) by Blank's Sports Nutrition as their running energy nutrition pick. My go-to drink mix, I use 750 mg of salt, 75 grams of carbs, and usually watermelon or mango flavoring. Custom mix for a great price.

    More from Grant Colligan's Broken Arrow 2026

    View Grant Colligan's expert gear recommendations on Rendezvu