Jan 31, 2025 · What is homocysteine? Homocysteine (Hcy) is an amino acid. It’s a chemical in your blood that helps create proteins. Vitamin B12, vitamin B6 and vitamin B9 (folate) break down …

Homocysteine (/ ˌhoʊmoʊˈsɪstiːn /; symbol Hcy) is a non-proteinogenic α-amino acid. It is a homologue of the amino acid cysteine, differing by an additional methylene bridge (−CH2−). It is biosynthesized …

Mar 6, 2025 · Homocysteine is an amino acid that the body produces. Most people have low homocysteine levels. This is because the body breaks down the amino acid quickly into other …

What is a homocysteine test? A homocysteine test measures the amount of homocysteine in a sample of your blood. Homocysteine is an amino acid. Amino acids are molecules that your body uses to …

Dec 9, 2025 · Elevated homocysteine in the blood may be caused by diet, medications, or certain health conditions. Learn what high homocysteine levels mean and how to lower them.

Elevated homocysteine levels are associated with heart attack, stroke, and blood clots. Homocysteine levels may be assessed by a blood test. Lowering homocysteine can be achieved with vitamin …

Homocysteine is an amino acid produced by the body and also is in your blood. When homocysteine blood test levels are high, it indicates risk of heart disease, heart attack, and stroke. Learn about high …

Jul 21, 2025 · Understand what elevated homocysteine levels mean for your health. Learn how this key blood marker is influenced by nutrition and lifestyle, and how to manage…

Aug 3, 2024 · Homocysteine is a common amino acid in your blood. You get it mostly from eating meat. High levels of it are linked to early development of heart disease.

Jan 24, 2025 · Homocysteine is an intermediary amino acid formed by the conversion of methionine to cysteine (figure 1). Homocystinuria is a rare autosomal recessive disorder characterized by severe …