Carb Back Loading.pdf | 2025 |

What is Carb Back-Loading - What The Research Says - OPEX Fitness

Carb Back-Loading (CBL), popularized by John Kiefer, is a nutritional strategy that optimizes body composition by restricting carbohydrates to the evening, specifically following late-afternoon resistance training. By keeping insulin levels low during the day to encourage fat oxidation and utilizing post-workout insulin sensitivity for glycogen replenishment, this method aims to build muscle while minimizing fat gain. For an in-depth explanation of the strategy, read the analysis from OPEX Fitness . Carb Back Loading.pdf