As a food, alfalfa is a rich source of protein, chlorophyll, beta-carotene, and vitamins B, C, E and K. Alfalfa may facilitate milk production in new mothers. As an alternative medicine, alfalfa can treat high cholesterol, allergies, diabetes and menopausal hot flashes, according to About.com.
The leaves, seeds and sprouts of the alfalfa herb increase urine flow, reports WebMD. Alfalfa may decrease cholesterol absorption, and medicine made from alfalfa can treat kidney, bladder and prostate conditions. Alfalfa-based medicines can treat asthma, upset stomach, rheumatoid arthritis and osteoarthritis. Alfalfa may also be helpful in the treatment of the bleeding disorder known as thrombocytopenic purpura.