Garlic actually creates the chemicals that give it its sharp flavor when the plant’s cells are damaged, as when the clove is broken by chopping, chewing, or crushing
Uses
High cholesterol (evidence is mixed)
Atherosclerosis
High blood pressure (evidence is mixed)
Possibly useful in preventing certain types of cancer, including stomach cancer, although no clinical studies have proven this
How it works
When garlic is crushed or finely chopped it yields allicin, a powerful antibiotic and antifungal compound
Side effects and warnings
Most adults can use garlic safely
People taking insulin need to use caution when consuming medicinal amounts of garlic, because garlic may help to regulate blood sugar levels
Use with anticoagulants could increase risk of bleeding
If preparing garlic-oil combination, it is important to store properly—not at room temperature—and to always add acid to prevent botulism spores from growing
References and recommended readings
MedlinePlus. Garlic. Available at: http://www.nlm.nih.gov/medlineplus/druginfo/natural/300.html. Accessed March 29, 2011.
National Center for Complementary and Alternative Medicine. Garlic. Available at: http://nccam.nih.gov/health/garlic/ataglance.htm. Accessed March 29, 2011.