There is no significant difference between red and white dragon fruits in terms of laxative effect. The origin and sugar content of red and white dragon fruits are different. Compared with white heart dragon fruit, red dragon fruit also has beet red pigment, polyphenols, because red dragon fruit and white heart dragon fruit are both fruits with seeds, both contain sufficient water, so both have a certain laxative effect, there is generally no obvious difference. But red dragon fruit and white heart dragon fruit are both food, both have no specific laxative effect, so can not replace the medicine. If the phenomenon of constipation, in addition to taking dragon fruit to regulate, but also need to further check the colonoscopy, stool routine and other items to find the cause.