EFX Sports Karbolyn Fuel is a food-derived, fast-acting carbohydrate supplement designed for athletes looking for a fast and safe way to fuel for intense workouts and recover from them. EFX Sports recommends mixing one scoop in a shaker cup with 16 ounces of water. You can drink it 30 minutes before a workout, during a workout, or immediately after your workout for recovery.
EFX Sports claims their supplement is the perfect fuel source for athletes looking to get the most from their high-intensity training plans. They share that Karbolyn enters the bloodstream quicker than traditional sports drinks and provides fuel for workouts without causing a crash later.
Customer reviews for Karbolyn Fuel are generally positive. Customers thought the Karbolyn provided enough fuel for their higher-intensity and longer workouts. They found it mixed well and liked the wide variety of flavors available. Negative reviews complained that it tasted bad. Some reviewers shared that it gave them an upset stomach.