Potato Protein Powder Potato (Solanum tuberosum L.) is an annual herb of the potato family with edible tubers. Potato tubers contain a lot of starch, which can provide rich calories for the human body, and is rich in protein, amino acids and a variety of vitamins and minerals, especially its vitamin content is the most complete of all food crops. In European and American countries, especially in North America, potatoes have long become the second largest staple food. Potatoes are native to the Andes region of South America. The earliest cultivation of potatoes can be traced back to southern Peru between 8000 and 5000 BC. Potato production is mainly in China, Russia, India, Ukraine, the United States and so on. China produces the most potatoes in the world.