The National Cancer Institute (NCI) initiated the “Designer Food Program” about a decade ago, setting garlic on the top of vegetable-pyramid representing potency in cancer prevention. Many investigators have recognized the effectiveness of garlic and related Allium plants against cancer. Again, it is a common sense among the platelet researchers that blood to be tested should be obtained from the donor who has not taken Chinese dishes involving garlic for at least a week. It is believed that the suppression of platelet aggregation is the
most prominent effect of garlic intake, since the effect is measurable by an aggregometer with ease.