Heart disease continues to be the leading
killer in the western world. Many factors can increase the risk of heart
disease. If you do nothing else - quit smoking or better yet, don't
start.
Diet has always
been considered an important risk factor. Many foods in our diet
have been shown to decrease the risk of coronary artery disease,
while others increase the risk. There has been a ‘sense’ that there
may be "something else" contributing to heart disease. Today we know
that Homocysteine is that "something else". Homocysteine is an amino
acid in the blood (plasma) and is related to a higher risk of
coronary heart disease, stroke and peripheral vascular disease.
Additional evidence suggests it may also
have an effect on atherosclerosis by damaging the
inner lining of arteries and promoting blood clots.
So what does a
naturally occurring amino acid
have to do
with heart disease? It has been almost an accidental discovery that
has pointed to homocysteine as a culprit. Just as the incidence of
heart disease rises with age, blood homocysteine levels tend to rise
with age, rising due to renal impairment, increasing in women
after menopause, and higher in men compared to women of the same
age. Studies show that blood levels of homocysteine are elevated in
coronary artery disease patients more than the control population.
Sufferers of coronary artery disease often have blood homocysteine
levels of greater than 15 µmol/L which is considered to be high. Ask
your physician what your level is, and have it checked regularly.
How important is
blood homocysteine? Researchers warn that high blood levels of
homocysteine may be as dangerous as smoking and having high
cholesterol.
The good news is
that blood Homocysteine levels can be reduced by increasing the
amounts of folic acid and vitamin B12 in your diet. These two
vitamins help in the metabolism of homocysteine.
Sources
of vitamin B12 are lean meats, dairy products and eggs. Sources of
folic acid include cooked spinach, asparagus, lentils and garbanzo
beans. Again, adding fresh green leafy veggies is key to great
health. |