Aspartic Acid is a non-essential amino acid which is bountiful in plant proteins. It can also be produced in the human body from oxaloacetic acid. Some biochemicals that are synthesized from aspartic acid include asparagine, arginine, lysine, methionine, threonine, isoleucine, and a number of nucleotides. Apartic acid is used for stamina, the brain and overall health as it helps the liver by removing excess harmful ammonia and other toxins from the bloodstream. If ammonia enters your circulatory system it can be harm your central nervous system and cause neural and brain disorders. Aspartic acid helps to keep the mind sharp by increasing concentrations of NADH in the brain.

Glycine is an amino acid acting as a transmitter of the nerve impulses. It reduces the spinal nerves action by supplying skeletal muscles. Glycine tastes sweet and is hence added to soft drinks so that it masks the aftertaste of saccharin bitterness. This is an organic compound and is found in animal proteins. Glycine takes active participation in the free state in many significant reactions such as the biosynthesis of heme which is indeed one the important constituents of hemoglobin. The glycine defects in metabolism are rare. This acid is however not essential as diet as it can be available from other substances to the body. This was the foremost acid to get isolated from protein. Glycine is employed in pharmaceutical applications. Glycine is sold as United States Pharmacopeia as well as technical grade. However, the USP grade has diverse uses. The technical grade may sometime not reach the standards or USP grade, but is widely used in industrial applications for metal finishing.

L-Alanine is considered as a supplementary amino acid. The presence of carbon atom in its composition leads to the formation of L alanine, which is organic in nature. The best sources of L-alanine would be fish, beef, pork and poultry. The various protein sources which are animal based would consist of a good amount of l-alanine. The alanine levels increases with the contraction of muscles in the body. L- alanine is used by the body to build proteins. It also helps in the transfer of nitrogen from the tissues in our body. It helps to draw blood sugar and hence acts as a good energy resource producer. This would be best suited for those who want a reduction in extra body fat.

L-Cysteine can be used to help with skin health. It also has been known to stop hair loss & aid normal hair growth. In some studies L-Cysteine has shown to Help the body's natural detoxification process and Enhance absorption of iron. L-Cysteine also Supports the production of red & white blood cells.

L-Glutamic Acid- In the proteinogenic group of twenty amino acids, the group that is deemed the building blocks of proteins, L-Glutamic Acid is one of the more commonly known ones. The reason for this fame are the carboxylate anions and salts of the glutamic acid, the glutamates. Glutamic acid is present in many fermented or aged food sources, such as cheese and soy sauce, but also in yeast extracts. The sodium salt of glutamic acid, monosodium glutamate, is a very popular and widely used food additive. Glutamate is an extremely important molecule in cellular metabolism. Glutamate is also one of the most commonly occurring excitatory neurotransmitters. Glutamate has been also identified as a precursor to GABA inhibitor. Glutamic acid is deemed responsible for one of the five basic tastes, the human taste sense commonly called umami.

L-Histidine is an essential amino acid that produces histamine, which aides with allergy systems.

L-Isoleucine is an essential alpha-amino acid that is considered both, a ketogenic and a glucogenic amino acid. Since that L-Isoleucine is an essential amino acid, it cannot be synthesized by the body, therefore it needs to be ingested. The primary source of L-Isoleucine is as a component of proteins. It has become a prominent component of nutritional supplements, mostly with the body building and similar athletic communities, where it is believed that L-Isoleucine has the capability to increase endurance, but also to repair muscle tissue. It has been observed that L-Isoleucine ingestion allows power athletes to recover easier from very tough trainings and exhausting activities. This branched chain amino acid is one of the three main BCAA in the body, the other ones being valine and leucine.

L-Leucine, is an alpha amino acid which is extremely essential in the everyday functioning of the body. Leucine is also an essential amino acid, meaning that the human body cannot synthesize it and it has to be ingested. And is found in brown rice, nuts and whole wheat bread products. L-Leucine as an essential amino acid increases the synthesis of muscle protein and thus slows the degradation of muscle tissue. L-Leucine is also utilised in the liver, adipose tissue and muscle tissue. Simply put, L-Leucine supplies the body with energy when engaging in an athletic activity, it preserves the glucose stored in muscle tissue and it works to heal bone, skin and muscle tissue. It is also a ‘limiting nutrient’ thus it helps the body make use of the proteins ingested. Leucine deficiency can lead to depression, muscle weakness, low energy etc.

L-Lysine- Lysine is an essential alpha amino acid that needs to be ingested and cannot be synthesized by the human body. Sources of L-Lysine include meat, particularly red meat, lamb, poultry and pork, but also cheeses, like parmesan, some fish like cod and sardines and eggs. Several plants are rich in L-Lysine, soybean, lentil, spinach and buckwheat, but also buffalo gourd, watercress, locust bean and many other bean variants, including the common bean. L-Lysine is deemed vital for the overall production of protein, as a structural building block. It seems that L-Lysine also plays a prominent part in the absorption of calcium. Further properties include playing a role in the production of enzymes, hormones and antibodies, but also in the recovery from sports injuries and surgeries.

L-Methionine- One of the most significant amino acids there is for the breaking down of fats. It is water-soluble and is known for deactivating free radicals. Recognized as being a leading antioxidant.

L-Phenylalanine is a vital amino acid. It acts as a building block for various proteins produced in the body. It is found in most foods that contain protein, like poultry, beef, pork, milk, fish, yogurt, cheese, eggs, soy products, and certain nuts and seeds. It can assist in decreasing chronic pain linked with different health conditions by inducing nerve pathways in the brain which control pain. It can also help improve rigidity and is beneficial in conditions like walking disabilities, depression associated with Parkinson’s disease, and speech difficulties. Combination of L-Phenylalanine with ultraviolet radiation for people having vitiligo, a condition that is characterized by irregular depigmentation or white patches of skin, can lead to some darkening or repigmentation of whitened areas, especially on the face.

L-Proline is a proteinogenic alpha amino acid, one of only twenty amino acids that are DNA encoded for the forming of protein. It is not deemed essential because humans are able to synthesize it from the amino acid L-Glutamate. This unique member of the twenty protein building block amino acids is the only one of the group that is distinct as belonging to the secondary alpha amino group. L-Proline plays a role in the synthesis of collagen. Collagen is undeniably the most common protein in mammals, being found in skin, tendons, joints, ligaments, vasculature and bones. It is deemed good for the health of joints, when taken as a supplement. Low protein diets, vegetarian and vegan diets as well as malnutrition lead to diminished L-Proline levels.

L-Serine- Serine is an organic compound and a proteinogenic amino acid that is considered a building block for the creation of proteins. This member of the hydroxyl group and a polar amino acid is not essential and therefore it is not necessary to ingest it by means of diet. L-Serine can be synthesized from metabolites such as glycine. L-Serine plays a role in the biosynthesis of pyrimidines and purines, furthermore it is a precursor to many metabolites like sphingolipids and to amino acids like cysteine and glycine. It is also involved in catalytic functions of several enzymes. L-Serine can be transformed into D-Serine by the serine racemase, which functions as a neuronal signal and NMDA receptor activator in the brain, a vital glutamate receptor responsible for memory functions and synaptic plasticity.

L-Threonine- 2-amino-3-hydroxybutanoic acid, or L-Threonine, an enantiomer of Threonine, which is an essential amino acid, needs to be ingested by way of diet, predominantly through Threonine containing proteins. There are two ways how Threonine can be metabolized, namely conversion into pyruvate by utilizing Threonine dehydrogenase, whereby an intermediate can thiolyze with CoA, producing acetyl-CoA and glycine; and the second possibility, where Threonine is changed into alpha-ketobutyrate, utilizing serine dehydratase, towards becoming succinyl-CoA. Succinyl CoA is a CAC intermediate, which means that it is a part of the citric acid cycle. The citric acid cycle is a vital part of the metabolic pathway which is securing the conversion of carbohydrates, proteins and fats towards usable energy. Foods containing Threonine are meat, poultry and fish and related products, cottage cheese, sesame seeds and lentils.

L-Tryptophan is the L-stereoisomer of the essential amino acid tryptophan. All amino acids consist of a basic structure which is different only in their special groups called functional groups. The amino acid tryptophan has an indole functional group. Tryptophan is an essential amino acid. This means that it must be ingested from an outside source. An example of a food item rich in this amino acid is banana. Basically, all amino acids are important for the body because they are the building blocks of proteins. Amino acids also possess some special features which vary according to the type of amino acid. Tryptophan also serves as a biochemical precursor of various substances in various reactions. It is a precursor of the neurotransmitter serotonin which is involved in regulating mood and gut movements. It can also act as a precursor of niacin.

L-Tyrosine is a non essential amino acid occurring in the body. L-Tyrosine may be created from the synthesis of phenylalanine which is also an amino acid. It is one of the building blocks of proteins in the body. It is also a precursor for several neurotransmitters such as L-dopa, dopamine, epinephrine and norepinephrine. It helps treat and prevent illness such as Parkinson’s disease, Alzheimer’s disease, depression and other such mood disorders. It also helps protect the body from free radical damages. It also helps protect the skin from UV rays damages on the skin by aiding in the production of melanin. It also helps in increasing the metabolic rate that speeds up muscle building and fat loss. It also increases the endurance.

L-Valine is an amino acid with stimulant activities. It not only helps in tissue repair but also promotes muscle growth. It is one of the three branched amino acids that are formulated for providing support to the human body for normal functioning. Derived from animal and vegetable protein, L-Valine is not only involved in the synthesis of protein and metabolism of glucose but it also regulates the immune system. L-Valine is also effective in maintaining the exercise recovery time and the balance of nitrogen in the body. Since the human body doesn’t produce this amino acid naturally, you need to acquire it through dietary supplements and food items. When taking L-Valine supplements, you must follow strict directions from the physician. Even though it doesn’t have any side effects, it helps to consult the physician before its usage.

Milk is a liquid produced by the mammary glands of mammals. Humans generally consume milk of goats and cows. Cow’s milk contains proteins, fats, lactose and minerals. It supplies 66 kcal of energy per 100 grams. Studies show that low-fat milk can reduce risk of heart disease and arterial hypertension. It contains Conjugated linoleic acid. Milk is shown to decrease risk of insulin resistance, and full fat milk is shown to slightly increase fertility in women. Milk is a good source of protein and many protein supplements are also manufactured from milk, which are used by athletes and bodybuilders for muscle growth.