EFX Sports Karbolyn, 2lbs
EFX Sports Karbolyn Fuel — Fast-Absorbing Carbohydrate Powder (2 lbs)
Karbolyn Fuel is EFX Sports' patented homopolysaccharide carbohydrate — a unique complex carb derived from potato, rice, and corn that absorbs as rapidly as simple sugars but sustains energy output like a complex carbohydrate. The result: fast glycogen loading without the sugar crash, GI distress, or energy dip that plagues simple carb supplements. Zero sugar, zero protein, zero fat, Informed-Sport certified, vegan, and gluten-free — pure performance fuel in a neutral unflavored powder.
| Spec | Per Serving |
|---|---|
| Brand | EFX Sports |
| Form | Powder |
| Flavour | Neutral (Unflavored) |
| Serving Size | 1 Scoop (53.5g) |
| Servings per Container | ~17 |
| Calories | 200 |
| Total Carbohydrates | 50g |
| Sugar | 0g |
| Protein | 0g |
| Fat | 0g |
| Carb Source | Patented homopolysaccharide (potato, rice, corn) |
| Certification | Informed-Sport |
| Vegan | Yes |
| Gluten-Free | Yes |
Key Benefits
- Fast Absorption, Sustained Energy — Karbolyn is a molecular weight-optimized homopolysaccharide engineered to move through the stomach quickly (like simple carbs) while providing sustained glycogen replenishment (like complex carbs) — without the crash.
- Zero Sugar, Zero Fat, Zero Protein — Pure carbohydrate fuel with no macronutrient contamination. Stacks cleanly with any protein, creatine, or pre-workout in your stack.
- Informed-Sport Certified — Third-party tested for banned substances. A trusted choice for professional and competitive athletes in Canada and internationally.
- Vegan and Gluten-Free — Derived entirely from plant sources. Compatible with vegan and celiac-safe diets.
- Neutral Unflavored Powder — Mixes cleanly into any shake, pre-workout, or intra-workout drink without altering flavour.
Best For
- Pre-workout glycogen loading before long or intense training sessions
- Intra-workout carbohydrate fuel for endurance athletes
- Post-workout carbohydrate replenishment paired with protein
- Athletes needing a vegan, gluten-free, sugar-free carb source
Not Ideal For
- Those in a strict calorie deficit who cannot accommodate 200 calories per scoop
- Those who prefer a flavored carbohydrate supplement
Ingredients & Allergens
Karbolyn Fuel (patented homopolysaccharide derived from potato, rice, and corn starch). No added sugars, sweeteners, flavors, or colors. Free of gluten, dairy, soy, egg, and common allergens. Vegan. Informed-Sport certified. Confirm allergen information on product label before use.
Who Is This For?
EFX Sports carbohydrate supplement is designed for endurance athletes and strength athletes who need rapid, sustained energy during prolonged training sessions or for post-workout glycogen replenishment. It suits anyone in a caloric surplus who needs easily digestible carb calories.
Who Is This NOT For?
Not recommended for those following a low-carb or ketogenic diet, individuals managing blood sugar conditions without medical guidance, or sedentary individuals who do not have elevated carbohydrate energy needs.
Why Buy From Bulldog Nutrition?
Bulldog Nutrition is an authorized Canadian and US retailer of EFX Sports products. We source directly from the brand — never from grey market or unauthorized distributors — so every order is genuine and fresh.
- ✓ Authorized EFX Sports retailer — authentic products only, never grey market or counterfeit
- ✓ Ships across Canada and the US — fast, reliable delivery to your door
- ✓ 10+ years in business — a track record you can rely on
- ✓ 4.7/5 stars from 2,400+ verified customer reviews
- ✓ Ongoing support available — reach us anytime via email or live chat
Shipping Information
Bulldog Nutrition ships across Canada and the United States. Most orders are processed within 1 to 2 business days.
Free shipping is available on eligible orders over $100. Please note that drink cases are excluded from free shipping due to size and weight.
During extreme hot or cold weather, heat-sensitive or cold-sensitive items may be affected in transit. For full details, please review our Shipping Policy.
Product & Site Disclaimer
Website information is provided for general informational purposes only. Product details, images, ingredients, and labels may change without notice, so customers should always review the actual product packaging received before use. For full details, please review our Product & Site Disclaimer.
Need Help?
For the fastest assistance, please use Live Chat on our website. You can also text SUPPORT to 1-833-497-3885 or use our Contact Us page for order, shipping, returns, and general support questions.