Alfalfa - Medicago Sativa Alfalfa provides beta-carotene and vitamins C, E, and K (although it is not, as frequently claimed, a source of vitamin A). Great for mineralizing and helps blood to clot by moving calcium into proteins that form a microscopic net to capture red blood cells. Vitamin K likewise helps bones to knit by working with vitamin D and glutamic acid to activate osteocalcin. The combination of these three nutrients is essential to building bone. Your body can not use calcium without it. Alfalfa not only helps keep calcium in the bones, it helps keep calcium out of the linings of arteries. Parts Used: Seeds, sprouts, and the above ground parts of the plant as a bulk herb, for teas, and in capsules.