Is it normal for urine to turn red after eating red-fleshed dragon fruit?

Aug 12, 2024 Source: Cainiu Health
Disease description:

I ate a red-fleshed dragon fruit yesterday, and today when I went to the bathroom, I noticed my urine was red. Is it normal for urine to turn red after eating red-fleshed dragon fruit?

Doctor's answer (1)
Dr. Cao Zhiqiang

Whether it is normal for urine to turn red after consuming red-fleshed dragon fruit can be determined by the following points:

1. Normal phenomenon: After eating red-fleshed dragon fruit, red-colored urine is a common occurrence and generally not a cause for concern. Red-fleshed dragon fruit contains a natural pigment called betacyanin, which is not easily broken down by the human body and is mostly excreted through urine, potentially causing the urine to appear red or pink. This change in urine color is temporary and should gradually return to normal within one to two days after ceasing consumption of red-fleshed dragon fruit.

2. Abnormal phenomenon: If, in addition to the change in urine color, symptoms such as frequent urination, urgency, painful urination, or fever occur, or if the abnormal urine color persists for more than two days, it is advisable to seek medical attention promptly. This may indicate a urinary tract infection, kidney stones, or other conditions.

Individuals with specific health conditions, such as kidney disease, should consult their doctor before consuming red-fleshed dragon fruit.