Homocysteine is an amino acid that is involved in biological processes such as protein metabolism and DNA synthesis in the body. It includes Cystathionine β-synthetase (CBS), Cysthionine β-lyase (CBL), and Lactate dehydrogenase (LDH). However, if homocysteine levels are too high, it can have a negative impact on human health. High levels of homocysteine have been linked to cardiovascular disease, blood clots, stroke, neurological disorders, osteoporosis, and more. Therefore, homocysteine testing can be used to assess the risk of cardiovascular disease and other diseases and to help doctors develop appropriate treatment options.