AlfalfaAlfalfa, which is a perennial herb, has a long list of dietary and medicinal uses and research has proven that Alfalfa might lower blood levels of cholesterol and glucose. Many take Alfalfa supplements orally and is has been proven safe except in a small percentage of people where it produces lupus like symptoms. In the seeds and sprouts of Alfalfa, amino acid L-canavanine is present and that is what is thought to cause this reaction. However, this is not present in the leaves of the Alfalfa.