Garlic decreases the ability of blood platelets to form clots.
Some animal studies suggest that garlic may improve insulin release in people with diabetes. But there is no evidence to support this effect in humans.
Other studies show that garlic may improve the elasticity of the aorta. It may also keep atherosclerotic plaque from forming.
There is some evidence that says
garlic can slightly lower cholesterol levels. But recent research done by the National
Center for Complementary and Integrative Health found that garlic had no effect on
Some research shows that taking
garlic by mouth can modestly reduce blood pressure. This effect was seen in people with
high blood pressure. It was also seen in people with normal blood pressure. The evidence
that it reduces high blood pressure is not strong.