The present invention provide a method for the industrial production of L-isoleucine which is useful as pharmaceuticals, foods, feed additives and the like. The method comprises cultivating in a nutrient medium a microorganism belonging to the genus Escherichia which is capable of rapidly growing in a medium containing L-homoserine as the single nitrogen source and has an ability to produce L-isoleucine in the medium, producing and accumulate L-isoleucine in a culture and recovering L-isoleucine therefrom.
It may help control blood sugar. It may also boost energy and endurance. It's also said to help speed healing of injured muscles. Isoleucine may also help muscle development and lean body mass
dietary l-isoleucine supplementation attenuated diarrhea and ... different doses (0.4–10 mM) of isoleucine.