Normal people eat red dragon fruit in moderation is no contraindication, and red dragon fruit is rich in carotene and dietary fiber, moderate consumption is also beneficial to health. But special groups, such as diabetes, dysmenorrhea, diarrhea and other people, should not eat a lot of dragon fruit, may aggravate the symptoms of the original disease: 1, red dragon fruit contains high sugar, and for easy absorption to glucose based, patients with diabetes and pregnant women should not eat more, otherwise it is easy to cause the burden of sugar metabolism, aggravate the symptoms of diabetes or increase the risk of gestational diabetes; 2, red dragon fruit in Chinese medicine is a cool food, for cold people or suffering from dysmenorrhea, cold women, is not recommended to eat a lot; 3, red dragon fruit contains a lot of dietary fiber, with laxative, laxative effect, but for people who have diarrhea symptoms should not eat, because dietary fiber will aggravate the symptoms of diarrhea. Because the red dragon fruit itself contains high sugar, so the way to eat should not add sugar or honey, so as not to cause a transient increase in blood sugar, increasing the burden of sugar metabolism. Consumption of red dragon fruit will cause a change in stool color, is a normal food pigment, do not worry too much, need to be distinguished from disease conditions.