L-Histidine is an amino acid that is essential to the body, but is not produced by the body. It is made available through various food sources. Histidine helps in the manufacture and repair of tissues in the body, and in the formation of red and white blood cells which help in the treatment of anemia. It is also used for the production of gastric juices by the stomach. A deficiency in Histidine can lead to cataract and rheumatoid arthritis. Besides this, it is also a well known component of the skin that protects it by absorbing the ultra violet rays of the sun. A variety of foods such as meat, legumes, seafood, nuts, poultry and dairy products are providers of the required amounts of L-Histidine.

L-Isoleucine- The second of three branched chain amino acids it is important in blood sugar regulation and producing hemoglobin. After exercise, it is responsible for muscle recovery and important in the metabolism to produce energy.

L-Leucine is useful in conjunction with L-Valine and L-Isoleucine as an amino acid supplement. L-Leucine is an amino acid that a body cannot produce on its own. It is expected to be received externally from food sources such as brown rice and nuts or even through some of the dietary supplementation. L-Leucine is showing numerous advantages in the athletic qualities. Within six week of training with L-Leucine in association, a person is able to maximize the aerobic power. In the six weeks the strength and power in the upper body increases. However, research and studies is limited carried on the athletic performance. L-Leucine incorporated into the muscle protein in continuation with two weeks exercise regime will give adequate resistance and the muscle protein synthesis will certainly show an increase. L-Leucine is a preservative of the muscles, but is as well a supplement that enhances the capabilities of muscle building owing to the enhanced protein synthesis rate.

L-Lysine is an essential amino acid obtainable from daily food sources we consume. It has many medicinal properties which benefit us in our daily lives. While it is mainly used in the treatment of herpes, it also helps us become stronger by building our muscle tissues. It helps us to recover form injuries and surgeries besides absorbing calcium for building healthy bones. It also regulates the production of antibodies, enzymes and hormones which are required for healthy immunity level. L-lysine when consumed in high doses can lead to serious conditions. Although L-lysine is important for good health, we never really realize we are consuming it. Deficiency of L-lysine causes lethargy, amnesia, enzyme disorders, reproductive problems and hair loss. Generally, L-lysine is present in all vegetarian and non-vegetarian foods. Fish and cereals have higher amount of L-lysine in them.

L-Methionine, an essential amino acid for the human body, acts as a building block for proteins. Since the body cannot produce it naturally, you need to take it through supplements and diet. This antioxidant is found in dairy products and meat and is essential for producing creatine. It is soluble in water and helps in breakdown of fats. You can also find L-Methionine in vegetables and fruits. Since it is a glycogenic amino acid, it helps in forming glycogen and D-glucose. On a daily basis, experts recommend only 13 mg of L-Methionine for adults. These supplements are not only effective in liver disease treatment but also beneficial for individuals who follow a vegetarian diet. You can enhance the quality of your skin, hair and nails by taking L-Methionine supplements.

L-Phenylalanine- The human body needs L-Phenylalanine for survival as it is an essential amino acid. It is found in food items that are rich in protein such as eggs, meat, dairy products, beans and fish. Since the body cannot produce L-Phenylalanine from other chemicals, you need to increase the intake of protein for fulfilling the nutritional needs. L-Phenylalanine is one of the chemical forms of Phenylalanine, an amino acid. It helps in building up of several proteins produced by human body. L-Phenylalanine supplements act as an appetite suppressant as it initiates the release of cholecystokinin, an intestinal hormone. Once this hormone enters the stomach, it signals your brain that you are not hungry anymore. According to experts, you should not take more than 500-1000 mg of L-Phenylalanine per day.

L-Threonine is an amino acid that is essential to the body, but must be obtained from various sources, as it is not produced by the body. L-Threonine is a well known amino detoxifying agent which works in the liver, preventing the build up of fat. It assists in metabolism and helps the intestinal and digestive tracts to function with absolute ease. L-Threonine also helps in the formation of enamel, elastin, collagen and muscle tissue. Foods rich in Threonine are leafy vegetables, poultry and pork, but it can be obtained from various pulses, whole grains, nuts and fruits like peaches and pairs. Commonly used in the relief of stress and anxiety, L-Threonine helps the consumer to have a completely healthy mental and physical style of living.

L-Valine is an amino acid in combination with L-Leucine and L-Isoleucine. These amino acids maintain everyday life and offer maximum support. L-Valine is acquired from vegetable and animal protein. L-Valine regulates the immune system and is involved in the protein synthesis and glucose metabolism. L-Valine is effective in muscle growth as well as tissue repair. L-Valine is a part of the muscle metabolism and is also effective in the nitrogen balance in the body. L-Valine is found in the muscles in high concentration, but this cannot be done on its own in the body and has to be acquired through dietary or food supplements. L-Valine has stimulating effect and maintains the nitrogen in the body. It is effective for repair as well as growth of tissues and for muscle metabolism. Adhering to the label directions is highly recommended. This is normally safe and has no side effect until now. However, for the dietary supplement consulting the physician before use is the best.