Energy Regulation & Muscle Recovery
Isoleucine is one of the three branched-chain amino acids, but its unique role lies in regulating blood sugar levels and increasing glucose uptake into muscle cells. This helps maintain energy during prolonged workouts and supports glycogen replenishment post-exercise. It also plays a role in muscle protein synthesis, making it vital for recovery and repair, especially as part of post workout repair by the body.
Unlike leucine, which triggers growth, isoleucine is more about endurance and fuel efficiency. It supports the body’s ability to train longer and bounce back faster - especially helpful for hybrid athletes combining strength and cardio disciplines.
In short: Fuels endurance and helps muscles recover and refuel efficiently.
📚 Citation: Nishitani, S., et al. "Branched-chain amino acids improve glucose metabolism in rats with liver cirrhosis." American Journal of Physiology-Endocrinology and Metabolism (2004).
