Isoleucine is important in the metabolism of glucose as manifested by the increase in the absorption of sugar.
It regulates blood sugar and strengthens the body's energy levels.
It plays a key role in the transport of oxygen from the lungs to the various parts of the body and the production of haemoglobin, the part of the blood that contains iron.

eggs, chicken, fish, cheese, soy beans, seaweeds and turkey.