After eating dragon fruit, urine will turn red. A small amount of eating, may become red urine is not particularly obvious; eating a large amount, the possibility of red urine is very large. Because dragon fruit contains a lot of red pigment, after eating red pigment will be absorbed by the body, but only a small part of the absorption is used by the body, the vast majority of the red pigment can not be used, will be filtered through the glomerulus and the formation of urine, urine has red pigment, will be expressed as red urine. This situation is not to worry, it is a normal reaction of metabolism, by drinking more water and urinating more, the red pigment will disappear after two days. You can also test the urine routine to see if there are red cells in the urine, if there are no red cells, it is caused by the red pigment of dragon fruit.