Homocysteine Test: Purpose, Procedure, and Health Implications
Introduction The homocysteine test is a blood test that measures the level of homocysteine , a sulfur-containing amino acid produced when the body metabolizes methionine (an essential amino acid obtained from food). Under normal circumstances, homocysteine is quickly broken down and converted into other useful compounds with the help of vitamins such as B6, B12, and folate (Vitamin B9) . When these vitamins are insufficient, or when genetic or metabolic disorders are present, homocysteine levels in the blood may rise. Elevated homocysteine (known as hyperhomocysteinemia ) has been studied for its possible role in cardiovascular disease, stroke, and inherited conditions such as homocystinuria . Why Is Homocysteine Important? Normal Role: Homocysteine is a natural byproduct of protein metabolism. Vitamin Connection: B vitamins, particularly folate and B12 , are essential to keep homocysteine within a healthy range. Deficiency Link: Low fo...