L-arginine is one of several
amino acids, or building blocks of protein, found in the human diet. Arginine
is classified as an essential amino acid because the body can not produce it; a
person must obtain the compound from a balanced diet. Although arginine
deficiency is uncommon, many people use it as a component of complementary and
alternative medicine.
Before
taking L-arginine, you're likely to ask yourself, "Does arginine
work?" The answer will depend entirely on why you want to use the product.
It "works" in some capacities but fails miserably in others. Here's a
run-down of the evidence supporting arginine's most common uses.
What L-Arginine Probably Works For
Arginine
supplements appear to be effective as complementary treatments for congestive
heart failure, recovery from surgery, angina pectoris, bladder inflammation,
weight loss caused by AIDS, erectile dysfunction, and leg pain caused by
clogged arteries. Arginine can also prevent digestive tract inflammation in
preterm babies. Most of arginine's benefits are explained by its capacity to
dilate (widen) blood vessels, thereby increasing bloodflow throughout the body.
What L-Arginine Might Work For
There
isn't enough evidence to confirm or refute many of the claims traditionally
associated with L-arginine. In theory, L-arginine may help to treat sickle cell
anemia, female sexual problems, wound healing, breast cancer, neck cancer, male
infertility, fatigue, hypertension, diabetic foot ulcers, dementia and
migraine. Although arginine is a plausible treatment for all of these
conditions, there isn't yet enough tangible scientific evidence to fully prove
or disprove its efficacy.
What L-Arginine Doesn't Work For
Some of
L-arginine's most common uses have now been disproven. Several well-designed
studies have shown that L-argnine works no better than a placebo for preventing
heart attacks; it also fails to increase survival rate if it is given
immediately after a heart attack. In fact, some studies have shown that it is
actually detrimental to heart attack patients. L-arginine is also ineffective
for pre-eclampsia, also known as toxemia or pregnancy-induced hypertension
(PIH). If you want to use L-arginine for these purposes, talk to your health
care provider about more viable options.
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