According to the doctor's inquiry, keeping a light diet before physical examination will help the doctor to evaluate the examination results more accurately. Spinach is a kind of nutritious vegetable, which contains a lot of vitamin C, vitamin K, dietary fiber and other substances, which is beneficial to human health. Although iron in spinach may have an impact on some examination items, moderate consumption will not have much impact on the physical examination results.

Therefore, you can eat spinach in moderation before physical examination, but you need a balanced diet.