Blood clots become dangerous when combined with other factors, such as weakened or brittle artieries, high cholesterol, atherosclerosis, and other chronic diseases. Beans are excellent dietary choices if you want to prevent the development of blood vessels because of the high folate levels in beans. Folate, an important member of the vitamin B family, has certain impacts on the metabolic activity of the body, and can strengthen arteries, or make them more flexible, thus making it more difficult for blood clots to get stuck and cause embolisms.