Yes Yunnan walnut is a specialty walnut in Yunnan, and its market sales are very high. It is one of the foods suitable for adults and children. It contains many nutrients, such as vitamin C, protein and cellulose, including w-3 fatty acids, which is very beneficial to brain. Walnut belongs to Juglans of Juglandaceae, mainly produced in North China, Northwest China, Southwest China, Central China, South China and East China, and South and West Xinjiang. China is one of the origins of walnuts in the world, and it is the largest country in walnut production in the world, with the largest planting area and output.