L-Isoleucine, simply referred to as Isoleucine from here on out, is an Essential Amino Acid (EAA) that is part of only three EAAs that form the subgroup called Branched-chain Amino Acids (BCAAs).
BCAAs are different from the other EAAs because they are more quickly available to be used by your body due to them being metabolized in your muscles and not in your liver.
BCAAs, generally speaking, increase Muscle Protein Synthesis that may help you Build More Muscle and Recover Better from your workouts. However, each BCAA is different and each one has unique properties that make it special.
According to recent clinical studies, Isoleucine appears to play a major role in the Fat Burning benefits of BCAAs.
Scientists studying Amino Acids recently discovered that mice given Isoleucine while eating a high fat diet gained significantly less fat than mice not given Isoleucine.
Isoleucine's Fat Burning properties are thought to be due to its ability to both activate special receptors that Increase Fat Burning while decreasing the activity of genes that normally increase fat storage.
While Leucine plays the largest role in Muscle Protein Synthesis, it should be taken with the other BCAAs, including Isoleucine, to not only Maximize Muscle Growth, but to also Increase the Lean Mass Support and Fat Burning Properties offered by a Complete, High Quality BCAA Supplement.