Spinach is just a common ingredient that does not make you black. Spinach is a frequently consumed vegetable, which is rich in dietary fiber, carotene, lutein and other nutrients, and does not contain substances that make the human body black, so consuming spinach will not turn black. Spinach does not have the role of treatment and prevention of disease, but contains a variety of nutrients for human health has certain benefits, therefore, daily life can be assured that the consumption of spinach in moderation. It should be noted that spinach contains a certain amount of oxalic acid, it is best to blanch when eating. And, spinach consumption is limited, and can not eat spinach to improve the health of the body, for the body has a disease, but also need to consult a doctor in a timely manner.