Blanch spinach in boiling water for three minutes. Spinach is rich in vitamin A, vitamin C and minerals. In particular, the content of vitamin A and vitamin C is the highest among all vegetables. The content of iron, a hematopoietic substance in the human body, is also higher than that of other vegetables.

Spinach (Spinacia oleracea L.), also known as Persian, red root, parrot, etc., belongs to the genus Spinach of the Chenopodiaceae family and is an annual herb. The plant can reach a height of 1 meter, with conical roots, reddish, or less white, leaves that are halberd-shaped to oval, bright green, with entire edges or a few tooth-like lobes. There are many types of spinach, which can be divided into two varieties: thorny and thornless based on seed shape. Spinach originates from Iran and is widely cultivated in China. It is one of the most common vegetables.