Arginine is a non-essential amino acid that is needed by the body for the proper functioning of the liver, skin, joints, and muscles. It helps improve the immune system by increasing the T-lyphocytes output from the thymus gland. Arginine also neutralizes the effects of ammonia and toxic substances by detoxifying the liver. It is beneficial to most athletes particularly body builders because arginine helps in the production of creatine in the body and stimulates the excretion of growth hormones that aids in the development of muscle mass. It also helps improve the metabolism and in fat loss. Arginine also promotes the healing and repair of damaged tissues.

Cystine is an amino acid containing sulfur, which assists in forming healthy skin, bones, hair, and connective tissue. It also is needed to make glutathione, a natural antioxidant that fights free-radical damage. Every molecule of cystine is formed from two molecules of cysteine, which is another sulfur-containing amino acid very similar to cystine. It is needed for proper vitamin B6 use and is also beneficial in healing burns and wounds, breaking down deposits of mucus in diseases like bronchitis and cystic fibrosis. Cystine enhances the glutathione level in lungs, kidneys, liver, and bone marrow, which can have an anti-aging impact on the body by decreasing age spots. It is a detoxification agent protecting the body against damage of cigarette smoking and alcohol, and can help prevent hangovers, and liver and brain damage.

Glutamine is naturally created by the human body. Glutamine, a non-essential amino acid can also be found in high protein foods like red meat and nuts. Glutamine is used for proper mental function, maintaining muscle mass and controlling blood sugar levels.

Histidine is an amino acid that is essential especially in infants. The adult body produces this amino acid naturally and thus it becomes a non-essential acid. However in the case of infants this is not true. This vitamin is extremely important and children may not have sufficient Histidine. The Histidine is an originator of the Histamine which is a compound that is release by the human immune system when an allergic reaction takes place. This is also essential for the repair and growth of new tissues and helps to maintain myelin sheaths (the protectors of the nerve cells). Histidine is also needed for the production of the red and white blood cells.

Iron is vital in human nutrition as the adult human body contains 3-4 grams of iron. Haem-iron and non-haem iron are the two types of iron. Foods rich in haem-iron include meat, liver, fish, and poultry. Foods that are high in non-haem iron are those of vegetable origin, like green leafy vegetables, cereals, legumes, oilseeds, nuts, dry fruits and jiggery. Iron is vital for numerous body functions, including hemoglobin formation, brain development and function, muscle activity, regulation of body temperature and catecholamine. Deficiency of iron affects immune system, reduces the number of T-cells and production of antibodies. Iron is also necessary for binding oxygen to body cells as its main function is oxygen transport and cell respiration. It works as an anti-cancer agent. Iron increases energy level of the body, improving physical performance. It prevents insomnia.

Isoleucine- An important essential amino acid is isoleucine which is also part of the three “branched chain amino acids” along with leucine and valine. Since it is an essential amino acid it cannot be synthesized in the body and thus isoleucine has to be ingested in the diet (almonds, chicken, eggs, cashews, fish, lentils, liver, meat etc.). Isoleucine is required for muscle recovery and also for the formation of haemoglobin. Isoleucine also assists in regulating blood sugar levels and energy levels. It is also involved in blood-clot formation. Isoleucine deficiency is present only in those people who are lacking in protein intake. Deficiency may lead to dizziness, fatigue, depression etc. Excessive amounts of isoleucine doesn’t seem to be a problem though it isn’t recommended for those with kidney or liver disease.

Leucine is an essential amino acid that works together with isoleucine and valine, forming the three branched chain amino acids (BCAA). Leucine is easily converted by to body to glucose, helping to regulate and maintain the blood sugar level. Leucine promotes muscle recovery, muscle repair and provides the body with energy. It also helps in burning fat that are least responsive to exercise and dieting. Leucine helps in toning the body and the muscles. Leucine prevents muscle loss by breaking down and converting to glucose, this prevents the body from breaking down muscle tissues to create energy, particularly during intense workouts and heavy weight lifting.

Lysine is chemically abbreviated as Lys or K. It is an essential amino acid with chemical formula HO2CCH (NH2) (CH2)4NH2 and Mol. mass 146.19 g mol-1 . It is not naturally synthesized in body and needs to be taken from dietary sources. Lysine plays a vital role in protein synthesis in the body and also helps in Calcium absorption. As it helps in protein synthesis it can improve recovery of muscles after workouts and surgeries. Research also shows that Lysine aids in production of some hormones, enzymes and antibodies. It is also believed to be beneficial for people with herpes simplex infections.

Magnesium is another mineral which is deemed essential for all biological life. As an essential part of basic nucleic acid, magnesium ions, together with phosphate ions, are also required for over 300 catalytic reactions of enzymes. Any enzymes synthesizing or utilizing adenosine triphosphate require a magnesium ion. Incredulously enough, magnesium deficiency is the most widespread deficiency, affecting a third of the population in the United States only, with third world countries surpassing the count easily. Being also essential, together with calcium and phosphorus, in the skeletal structure, magnesium deficiency is viewed as a main factor in ailments such as osteoporosis. Naturally available through cereals, green leafy vegetables, nuts, spices, tea, cocoa and coffee, magnesium is available as a supplement in magnesium oxide and magnesium citrate form, whereby the latter is viewed as more bioavailable.

Manganese is a trace mineral that has long been associated with musculoskeletal health. It activates enzymes in the body that is necessary for the production of collagen and proteoglycan, components of connective tissue. It also aids in the absorption of calcium in the body. It helps prevent the development of osteoporosis and osteoarthritis. Manganese helps in the digestion and utilization of vitamin E in the body that makes it a potent antioxidant. It fights free radicals from damaging the cells that may lead to premature aging, heart problems and cancer. It alleviates premenstrual syndrome (PMS) such as mood swings and nausea.

Medium Chain Triglycerides (MCT) is a fatty acid essential for a variety of metabolic development. MCT, which stands for medium chain triglycerides, is used for curing patients suffering from mal-absorption syndromes or malnutrition. MCT are short in length does not need bile salts for digestion and the energy for utilization, storage and absorption. They are water-soluble and get absorbed quickly by the bloodstream and easily transported into the liver. Palm kernel oils and coconut oil are rich in MCT. Since only a tiny percent of it gets transformed into body fat, it aids weight loss provided the diet one consumes contains half the calories from MCT. Fatty acids present in MCT are known as medium chain fatty acids, some of them are capric acid, caproic acid, caprylic acid and lauric acid

Phenylalanine, which may aid in weight loss through the feeling of satiety or fullness by taking phenylalanine with a glass of water 20 minutes before a meal.

Phosphate (Phosphorus) is perhaps one of the most important mineral, which in form of phosphate as an intercellular anion serves a multitude of functions. Not only are phosphates essential for the utilization of most vitamins belonging to the B complex, but they are vital for energy storage and the overall metabolism. But that is not all, phosphate is essential for healthy bones and teeth, calcium with phosphorus are required for them and soft tissues as well. But also body fluids require phosphates for excretion of hydrogen ions through the kidneys. Somewhere around one per cent of the body weight should be phosphorus in some form, therefore it is vital to supply your body with sufficient phosphates through milk, cheese, nuts, peanut butter, peas and other sources, including supplements.

Potassium is an electrolyte, a substance that maintains the fluid levels in the body. It is helpful in regulating blood pressure and heart function. Intake of potassium can benefit people suffering from hypertension. Research has found that a potassium supplement intake decreased incidence of stroke by 60 percent. It neutralizes acids and restores alkaline salts to bloodstream.  It acts along with sodium cells to maintain or restore membrane potentials. Potassium is also vital for nerve functioning and cardiovascular, and regulates nutrients’ transfer into cells and adds to muscle energy. It also helps recuperative powers, besides regulating water balance. Potassium is beneficial for eliminating wastes. It is helpful in controlling headaches and convulsions, and quickens healing of cuts, bruises and other injuries.

Sodium is the element that has the atomic number 11 in the periodic table and is commonly known as the main component in the table salt, together with chloride. Interestingly enough, it is probably the one dietary component which does require limitation rather than supplementation, since that average daily nutritional requirement is around half a gram per day. This most popular food seasoning, salt, is providing the most common source of sodium and chloride in human diets, but is generally overused and may cause health problems, such as high blood pressure, if consumed overly generously. The suggested dose of table salt, or rather the upper limit portion, would be somewhat less than 6 gram per day, according to the Dietary Guidelines for Americans, referenced by FDA. In the UK this limit is set at four grams per day.

Threonine is an essential amino acid that plays an important role in the function of the body. It helps break down uric acid to be used for the production of purines. It helps prevent illness such as gout, and arthritis. It is also important in the synthesis of the amino acid glycine. Threonine also helps balance the blood sugar level in the body by converting glucose in the liver through gluconeogenesis. Threonine also prevents the accumulation of fatty tissues in the liver. It also improves the immune system. Threonine promotes the production and formation of proteins elastin and collagen that have strong antioxidant properties.

Tryptophan-If you have ever felt sleepy or drowsy following a big "turkey" dinner, then you have felt the effects of tryptophan, which is an essential amino acid that is found in foods that contain protein, such as turkey. Tryptophan in supplement form is mainly for those who suffer from insomnia, as an all natural sleep aid. Tryptophan may also be used for mental enhancement and as an appetite suppressant to help achieve weight loss or maintain an ideal body weight. The way that tryptophan works is by converting to serotonin in the body, which is a natural chemical that causes a sleepy feeling.

Valine- One of the several essential amino acids present in the human body is Valine. This is also a nonpolar, branched chain amino acid which is found in high concentrations in the muscles. Since it is an essential amino acid, valine is not synthesised in the body and thus must be ingested as part of the diet. Valine is available through foods like fish, poultry, peanuts, sesame seeds, lentils and cottage cheese. Valine is essential for muscle, growth and repair of tissue and for maintaining the body’s nitrogen balance. Since it has a branched chain, valine can be used as an energy source in the muscles and thus conserves glucose. Hence valine is often used by bodybuilders to support muscle growth and provide energy. A deficiency of valine in the body, caused by the inability of the body to metabolise valine leads to the Maple Syrup Urine Disease in which the person’s urine smells like maple syrup.

Zinc is a mineral that is present in every cell in the body. It is good for maintaining a healthy skin. It promotes healing of wounds such as bed sores, skin sore, and canker sores. It may also act as an astringent and aid in the treatment of acne. Zinc improves the immune system by activating white blood cells to fight against infections, virus, and even cancers. Zinc is also beneficial in improving the health of prostate gland and protects it against inflammation and infection. It also helps improve the brain functions such as memory retention. It also helps in the production of testosterone that improves libido, prevents low sperm count. It may also help in the formation and development of muscles.