Used by the early Arabs as feed for their horses to make the animal swift and strong, Alfalfa (Medicago sativa) is one of nature's oldest legumes. Because the roots of the plant burrow deep into the earth, Alfalfa naturally contains a variety of vitamins, minerals and enzymes known to promote good health. Peppermint (Mentha piperita) is a widely used flavoring found in a variety of consumer products. Peppermint's aromatic and health-giving qualities come from the mint's volatile oil, which contains menthol. Both herbs have a long and varied history and together make a refreshing tea. It may be served either hot or cold, and lemon may be added, along with sweeteners to taste.