An excellent overall tonic, the Arabs called it the "father of all foods," it can be used to boost your normal vitality and strength, and it's especially helpful during convalescence or anemia. Alfalfa is a nutritious and restorative tonic. In addition to the alkaloids asparagine and trigonelline. Alfalfa is rich in beta-carotene, Vitamin C, D, E and K (the best natural source of Vitamin K), and minerals such as Calcium, Potassium, Magnesium and Iron. Alfalfa is one of the most mineral-rich foods, and is a natural source of every known vitamin.