Inosine is a naturally occurring nucleoside which serves as an intermediate in purine metabolism. The metabolism of purines in humans generates a potent antioxidant compound, uric acid, which is known to be a natural scavenger of both oxygen and nitrogen reactive species as well as having chelator properties. Inosine, as a precursor of uric acid, was shown to have neuroprotective effect in vitro and is being tested in phase III of clinical trials for the treatment of Parkinson disease. The treatment with inosine is belived to prevent or slow the disease.

Glucosamine is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids. Glucosamine is part of the structure of the polysaccharides chitosan and chitin, which compose the exoskeletons of crustaceans and other arthropods, as well as the cell walls of fungi and many higher organisms. Glucosamine is one of the most abundant monosaccharides. It is produced commercially by the hydrolysis of crustacean exoskeletons or, less commonly, by fermentation of a grain such as corn or wheat. Oral glucosamine is a dietary supplement and is not a pharmaceutical drug. It is illegal in the US to market any dietary supplement as a treatment for any disease or condition. Glucosamine is marketed to support the structure and function of joints, and the marketing is targeted to people suffering from osteoarthritis. Commonly sold forms of glucosamine are glucosamine sulfate, glucosamine hydrochloride, and N-acetylglucosamine. Of the three commonly available forms of glucosamine, only glucosamine sulfate is given a "likely effective" rating for treating osteoarthritis. Glucosamine is often sold in combination with other supplements such as chondroitin sulfate and methylsulfonylmethane. Glucosamine, along with commonly used chondroitin, is not routinely prescribed to treat people who have symptomatic osteoarthritis of the knee, as there is insufficient evidence that this treatment is helpful. One clinical study over three years showed that glucosamine in doses of 1500 mg per day is safe to use. Glucosamine with or without chondroitin elevates the international normalized ratio (INR) in individuals who are taking the blood thinner, warfarin. It may also interfere with the efficacy of chemotherapy for treating cancer symptoms. Adverse effects may include stomach upset, constipation, diarrhea, headache, and rash. There are case reports of people who have chronic liver disease and a worsening of their condition with glucosamine supplementation. Glucosamine is naturally present in the shells of shellfish, animal bones, bone marrow, and fungi. D-Glucosamine is made naturally in the form of glucosamine-6-phosphate, and is the biochemical precursor of all nitrogen-containing sugars. Specifically in humans, glucosamine-6-phosphate is synthesized from fructose 6-phosphate and glutamine by glutamine—fructose-6-phosphate transaminase as the first step of the hexosamine biosynthesis pathway. The end-product of this pathway is uridine diphosphate N-acetylglucosamine (UDP-GlcNAc), which is then used for making glycosaminoglycans, proteoglycans, and glycolipids. As the formation of glucosamine-6-phosphate is the first step for the synthesis of these products, glucosamine may be important in regulating their production; however, the way that the hexosamine biosynthesis pathway is actually regulated, and whether this could be involved in contributing to human disease remains unclear.

Creatinine is a product of metabolism of creatine phosphate, a molecule that serves as a rapidly mobilizable reserve of a brain and skeletal muscle. Creatinine is excreted by kidneys with little or no reabsorption. Serum creatinine is the most commonly used indicator of renal function.

Galactose, a monosaccharide sugar, is a key source of energy and is an important compound for early human development. Galactose is present in dairy products, the pectin of some fruits, vegetables, and some herbs. Children get most of their dietary galactose from milk. D-galactose is freely available in health food stores and is promoted for stimulating the immune system and improving gut motility in healthy individuals. Galactose as a part of food supplement participates in phase II of clinical trials for congenital disorders of glycosylation (CDG) patients. CDG is a group of more than 130 inborn errors of metabolism affecting N-linked, O-linked protein and lipid-linked glycosylation. In addition, monosaccharide is used in clinical trials phase I in patients with focal segmental glomerulosclerosis (FSGS), where the galactose lowers the level of a circulating factors that increase glomerular permeability to albumin in patients with resistant FSGS.

Sodium myristate is the sodium salt of myristic acid. It is used in the food as the binder, emulsifier and anticaking agent. It is one of the commonly occurring soaps. It is used in cosmetic as a cleansing and emulsifying agent.

HYDROXYPROLINE, a hydroxylated form of the imino acid proline, is a major component of the protein collagen. For this reason, HYDROXYPROLINE content in biological fluids is used as a parameter of collagen catabolism, especially bone resorption or tissue degradation. A deficiency in ascorbic acid can result in impaired HYDROXYPROLINE formation.

Sarcosine, also known as N-methylglycine, is a metabolite of glycine. It shares properties with both glycine and D-serine, though its effects are weaker. Sarcosine supplementation can be used to alleviate symptoms of depression and schizophrenia, or improve cognition. It is absorbed more reliably by the body than D-serine, which can also treat similar conditions. Sarcosine is being investigated for its connection to prostate cancer. It may be a biomarker for prostate cancer, which means that if sarcosine levels in the blood are higher than normal, it could be an indicator of prostate cancer. This doesn’t mean that sarcosine itself causes cancer. More research is needed to confirm this relationship. Sarcosine’s main mechanism involves inhibiting a transporter, called GlyT1, which takes up glycine and D-serine into cells. This increases the levels of glycine and D-serine in the body and increases their effects. Sarcosine, a glycine transporter type 1 inhibitor and an N-methyl-D-aspartate (NMDA) receptor co-agonist at the glycine binding site, potentiates NMDA receptor function. Sarcosine is an inhibitory glycine receptor agonist.

Palmitic acid is a saturated fatty acid, the principal constituent of refined palm oil, present in the diet and synthesized endogenously. Palmitic acid is able to activate the orphan G protein-coupled receptor GPR40. Palmitic acid was also a weak ligand of peroxisome proliferator-activated receptor gamma. Palmitic acid is a ligand of lipid chaperones - the fatty acid-binding proteins (FABPs). Dietary palm oil and palmitic acid may play a role in the development of obesity, type 2 diabetes mellitus, cardiovascular diseases and cancer.

Asparagine is a non-essential amino acid, which is synthesized in the human body from L-aspartate by Asparagine synthetase. Asparagine is required for the synthesis of many important cellular proteins in normal human cells. Many tumor cells do not have this capacity, due to a lack of the enzyme L-asparagine synthetase, and therefore require an exogenous supply of the amino acid. This amino acid participates in the functions of the brain and nervous system. Asparagine may come from food or be taken as a dietary supplement.

CTI-01 (ethyl pyruvate) is an investigational anti-inflammatory agent for the treatment of critical inflammatory conditions. CTI-01 was developed by Critical Therapeutics as a stable prodrug of pyruvate, a potent antioxidant, and a free radical scavenger. The drug showed an anti-inflammatory and tissue protection activity in animal models of pancreatitis, ischemia-reperfusion injury, sepsis, renal injury, and endotoxemia. CTI-01 was investigated in phase 2 clinical trials on patients undergoing cardiac surgery with cardiopulmonary bypass, but despite positive results in animal models, administration of EP does not appear to confer any benefit to cardiac surgical patients undergoing cardiopulmonary bypass. Besides clinical applications, ethyl pyruvate is long used as an additive to pharmaceutical preparations and foods, including candy, beverages, and baked goods. It is generally recognized as safe by the FDA.