Maca root grows in the mountains of Peru at high altitudes of 7,000 to 11,000 feet, making it the highest altitude growing plant in the world. Maca is a radish-like root vegetable that is related to the potato family, and is tuberous and spherical in form. The root itself is about three to six centimeters across and 4.7 centimeters in length. There are four recognized types of Maca Root based on the color of the root. Root color varies from creamy yellow or light pink to dark purple or black. Chemically Maca root contains significant amounts of amino acids, carbohydrates, and minerals including calcium, phosphorous, zinc, magnesium, iron, as well as vitamins B1, B2, B12, C and E. Peruvian Maca also includes a number of glycosides.