According to the University of Maryland Medical Center garlic can be used to help prevent heart disease, including atherosclerosis or hardening of the arteries (plaque buildup in the arteries that can block the flow of blood and may lead to heart attack or stroke), high cholesterol, high blood pressure, and to boost the immune system. Eating garlic regularly may also help protect against cancer.
Garlic is rich in antioxidants. In your body, harmful particles called free radicals build up as you age, and may contribute to heart disease, cancer, and Alzheimer's disease. Antioxidants like those found in garlic fight off free radicals, and may reduce or even help prevent some of the damage caused over time.
The conditions for which garlic is showing the most promise is Heart disease. Garlic is most often mentioned as an herb for heart disease and atherosclerosis (hardening of the arteries), but the evidence is mixed. Some studies do suggest that garlic may help prevent heart disease. It may slow down atherosclerosis and lower blood pressure a little, between 5% and 8%. Most of the studies on high blood pressure have used a specific formulation called Kwai. One study that lasted 4 years found that people who took 900 mg daily of standardized garlic powder slowed the development of atherosclerosis. Garlic also seems to act as a blood-thinner, which may help prevent heart attacks and strokes.
Earlier studies found that garlic lowered high cholesterol, but almost all recent studies that are high quality have found that garlic didn't lower cholesterol.
Source: Garlic | University of Maryland Medical Center http://umm.edu/health/medical/altmed/herb/garlic#i...
University of Maryland Medical Center
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