Respuesta :

It is part of the Vitamin B group. In some people, it causes their urine to turn a yellowish-orange color. 
Nflores81102
Riboflavin is LIKELY SAFE for most people when taken by mouth. In some people, riboflavin can cause the urine to turn a yellow-orange color. When taken in high doses, riboflavin might cause diarrhea, an increase in urine, and other side effects.