Garlic is widely used in Europe for the prevention of
atherosclerosis, and thus coronary heart disease and stroke. Studies
support the use of garlic to treat high
cholesterol. There is evidence that it can be used to help treat hypertension,
lowering blood pressure slightly, as well as help "thin"
the blood and fight free radicals. Several studies also suggest that
regular use of garlic can help prevent cancer. Garlic can kill
bacteria, viruses, protozoa, and fungus by direct contact, and as
such has been used topically for this purpose.
Generally very safe in recommended doses. In high doses side effects
include GI upset, heartburn, nausea/vomiting/diarrhea, flatulence,
facial flushing, tachycardia, trouble sleeping. It can blister the
skin if used topically. It can "thin" the blood, thus can
potentiate medications designed for that purpose (see below). If you
are undergoing a procedure or operation that requires that you stop
blood thinning medications, include garlic in this recommendation.
Interactions
If you are taking Coumadin, heparin, aspirin (or any of the new
antiplatelet medications), or Trental, do not use garlic unless under
the supervision of your physician. Garlic can potentiate the blood
thinning effect of ginko or high dose vitamin E.