L-Isoleucine Powder

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Foods which have high content of Isoleucine include nuts and seeds, meat, legumes, eggs, peas, soy products, brown rice, and whole wheat among others. Isoleucine in the body is generally found in its highest concentrations in the muscles and it is very important for athletes in particular to have high amounts of it at all times, but particularly right before exercise.

Right after exercise, levels of Isoleucine will be spent and will need to be recovered. However some choose to supplement Isoleucine one hour before exercise so that it will balance out the loss afterwards and it will not take long to regain whatever was lost and reach normal amounts again.

Isoleucine is used mainly to provide muscles with energy as this is where it is usually stored. When you are deficient in Isoleucine the symptoms can range from dizziness and headache to fatigue, irritability, and confusion, and even Depression.

Isoleucine is generally thought of in conjunction with other Branch Chain Amino Acids including Valine and Leucine. When taking Isoleucine supplements it is important to supplement other Branch Chain Amino Acids or this can have an adverse effect on the kidneys and liver. For this reason, Isoleucine should always be taken with two parts Leucine and one part Valine for every one part of Isoleucine.

Despite the effects of Isoleucine on its own, for full muscle recovery to take place it is best that all three BCAAs be present in the system. However, Isoleucine is unique from the others in that it alone is able to alter and keep blood sugar at normal levels.

BCAAs are generally beneficial when it comes to muscle growth, retention, and repair. They feed the skeletal muscles with energy to keep doing their jobs, especially when muscles are under stress due to exercise. Also, muscles are able to store more glycogen when BCAAs are present.

L-Isoleucine Health Benefits

This supplement is able to keep levels of blood sugar normal and healthy while also helping to provide the muscles with energy. It is needed in order for the formation of hemoglobin to take place as well. Isoleucine is needed in order for muscle recovery to take place too. While Isoleucine helps to keep levels of nitrogen regular in adults it is essential in children to promote regular growth.

Serving Size & Timing

This supplement is suggested to be taken in servings between 1000-2000mg to be consumed three times per day. It is also important to remember to take proportional elements of the other BCAAs as mentioned above. If taking one, it is necessary to take the rest.


This supplement is considered pharmaceutical grade and has no fillers of any kind.


Those who have had kidney or liver problems in the past are cautioned from taking this supplement, as are women who are pregnant or nursing. However, as long as suggested serving sizes are adhered to, it should be safe for anyone else to take.


L-Isoleucine has a bit of a bitter taste, and it is best to mix with a protein shake (as it is not very soluble in water). It should be stored in an area that is free from light, heat and moisture.

There is no guarantee of specific results and results can vary.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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