Red Maca has a high nutritional value profile and protein content, higher than other roots and tubers. Its calcium content is even higher than other plants. Maca root can come in a variety of colors, such as red, purple, cream, yellow or black, the most common being yellow. Of the different types of maca that have been analyzed, Red Maca has the highest amount of antioxidants, contains more carotene, niacin, vitamin C and Zinc.