First, we should consider that eating too much pitaya is caused by its black seeds.

Second, it may be caused by a chemical reaction with other foods.

Third, upper gastrointestinal bleeding is not ruled out. If there are no other symptoms, you can stop eating pitaya.

If the stool is still black after more than three days, you need to go to the hospital for routine stool examination.

Usually pay more attention to diet, mainly light and digestible food, and avoid cold, greasy, spicy and irritating food.

Pay attention to eat less and eat more, chew slowly. Avoid alcohol, cigarettes, strong tea, coffee, carbonated drinks, etc. Eat less and eat more, chew slowly, eat some fresh fruits and vegetables properly, pay more attention to rest, ensure enough sleep time every day, avoid staying up late and avoid overwork.

If you eat red pitaya, your stool will be red. Some people may hear this at first, or they must feel sick in this situation. In fact, eating pitaya is a normal phenomenon.