Elevated homocysteine levels (hyperhomocysteinemia) is a sign that the body
isn't producing enough of the amino acid homocysteine. The condition may be genetic
(inherited) called homocystinuria. Homocystinuria is a somewhat rare genetic
(inherited) condition that includes symptoms like developmental delays, osteoporosis, blood clots,
heart attack, heart disease, stroke, and visual abnormalities died at an early age.
There are other causes of the condition like alcoholism.
Supplementing the diet with folic acid and possibly vitamins B6 and B12 supplements can lower homocysteine levels. Currently there is no direct proof that taking folic acid and B vitamins to lower homocysteine levels prevent heart attacks and strokes. Talk to your doctor if you feel you need to have your homocysteine blood levels checked.
Multimedia: Slideshows, Images & Quizzes
Vitamins and Supplements: Test Your Medical IQ
Take the Vitamins & Supplements Quiz to learn just how many essential vitamins your body needs to function!...
Alcohol Quiz: Alcoholism & Health Effects
Take the Alcohol (Alcoholism) Quiz to learn how your alcohol is processed by your body and your brain....
Osteoporosis Quiz: What is Osteoporosis?
What are the causes, symptoms, and risk factors of osteoporosis? Quiz yourself about vitamin deficiency, maintaining bone...
Heart Disease Quiz: Test Your Medical IQ
Take our Heart Disease Quiz to get answers and facts about high cholesterol, atherosclerosis prevention, and the causes,...
Picture of Heart Detail
The heart is composed of specialized cardiac muscle, and it is four-chambered, with a right atrium and ventricle, and an...
Picture of Osteoporosis
Thinning of the bones with reduction in bone mass due to depletion of calcium and bone protein. See a picture of Osteoporosis and...
Picture of Osteoporosis Progression
Bone mass (bone density) is the amount of bone present in the skeletal structure. See a picture of Osteoporosis Progression and...
Picture of Heart
The muscle that pumps blood received from veins into arteries throughout the body. See a picture of the Heart and learn more...
Heart Disease: Symptoms, Signs, and Causes
What is heart disease (coronary artery disease)? Learn about the causes of heart disease. Symptoms of heart disease include chest...
What Is Osteoporosis? Treatment, Symptoms, Medication
Osteoporosis is a disease characterized by low bone mass and density. Osteoporosis causes symptoms of weak, thin, fragile bones....
Heart-Healthy Diet: 25 Foods to Protect Your Cardiovascular System
See 25 foods loaded with heart-healthy nutrients that help protect your cardiovascular system. Plus, find easy meal/recipes and...
Heart Disease: Causes of a Heart Attack
Learn about heart disease and heart attack symptoms and signs of a heart attack in men and women. Read about heart disease...
Am I Having a Heart Attack? Symptoms of Heart Disease
Heart attacks symptoms vary greatly for men and women, from anxiety and fatigue to nausea and sweating. Learn the warning signs...
Alcohol Abuse: 12 Health Risks of Chronic Heavy Drinking
Read about the health risks of chronic heavy or binge drinking. Anemia, cancer, gout, cardiovascular disease and many more...
Related Disease Conditions
Heart attack happens when a blood clot completely obstructs a coronary artery supplying blood to the heart muscle. A heart attack...
Stroke (Signs, Symptoms, Warning Signs)
A stroke is an interruption of the blood supply to part of the brain caused by either a blood clot (ischemic) or bleeding...
Pernicious anemia is a blood disorder in which the body does not make enough red blood cells due to a lack of vitamin B12 in the...
Vitamins and Calcium Supplements
Vitamins are organic substances that are essential for the proper growth and functioning of the body. Calcium is a mineral...
Alcoholism is a disease that includes alcohol craving and continued drinking despite repeated alcohol-related problems, such as...
Heart Attack Prevention
Heart disease and heart attacks can be prevented by leading a healthy lifestyle with diet, exercise, and stress management....
Smoking (How to Quit Smoking)
Smoking is an addiction. More than 430,000 deaths occur each year in the U.S. from smoking related illnesses. Secondhand smoke or...
Deep Vein Thrombosis (DVT, Blood Clot in the Legs)
Deep vein thrombosis (DVT) is a blood clot in the deep veins, and can be caused by broken bones, trauma to a limb, immobility,...
12 Heart Attack Symptoms and Early Warning Signs
Recognizing heart attack symptoms and signs can help save your life or that of someone you love. Some heart attack symptoms,...
The definition of a genetic disease is a disorder or condition caused by abnormalities in a person's genome. Some types of...
Omega-3 Fatty Acids (Benefits, Uses, Foods)
Omega-3 fatty acids are essential fats that help decrease one's cholesterol and triglyceride levels as well as reduce the risk of...
Stress and Heart Disease
The connection between stress and heart disease is not clear. Stress itself may be a risk factor, or high levels of stress may...
How the Heart Works
The heart is a very important organ in the body. It is responsible for continuously pumping oxygen and nutrient-rich blood...
Vitamins & Exercise: Heart Attack Prevention Series
Vitamins and exercise can lower your risk for heart attack and heart disease. Folic acid, vitamins, and homocysteine levels are...
Heart Attack Treatment
A heart attack involves damage or death of part of the heart muscle due to a blood clot. The aim of heart attack treatment is to...
Pulmonary Embolism (Blood Clot in the Lung)
A pulmonary embolism (PE) occurs when a piece of a blood clot from deep vein thrombosis (DVT) breaks off and travels to an artery...
Heart disease (coronary artery disease) occurs when plaque builds up in the coronary arteries, the vessels that supply blood to...
Blood clots can occur in the venous and arterial vascular system. Blood clots can form in the heart, legs, arteries, veins,...
Your health care provider may refer you to a genetic professional. Universities and medical centers also often have affiliated...
Smoking and Heart Disease
Smoking increases the risk of heart disease in women and men. Nicotine in cigarettes decrease oxygen to the heart, increases...
Heart Disease Treatment in Women
Heart disease treatment in women should take into account female-specific guidelines that were developed by the American Heart...
Homocysteine - Elevated Levels
Do you or someone you know have homocystinuria and elevated homocysteine levels? Please describe your experience.Post View 16 Comments
Homocysteine - Lowering Levels
What supplements or other lifestyle changes have you found effective in lowering your elevated homocysteine levels?Post View 4 Comments
Homocysteine - Testing
Please describe the decision to test you or someone you know for blood homocysteine levels.Post View 2 Comments
Treatment & Diagnosis
Medications & Supplements
Prevention & Wellness
- Blood Test Might Someday Predict Your Stroke Risk
- 9 Factors You Can Control May Be Key to Alzheimer's Risk
- B Vitamins May Not Boost Memory or Thinking, Study Suggests
- Vitamin B No Help for Alzheimer's: Review
- Rate of Statin-Linked Muscle Woes Unclear, Study Suggests
- More Doubt on Link Between a Blood Chemical and Heart Disease
- Vegetarians May Need to Boost Omega-3s, B-12
- Unhealthy Diet Raises Heart Risk of Obese Teens
- New Guidelines on Women's Heart Risk
- New Alzheimer's Gene Found
- Foods That Fight Alzheimer's Disease
Subscribe to MedicineNet's Heart Health Newsletter