Final answer:
Vitamin B12 can cause urine to turn yellow when consumed in excess.
Step-by-step explanation:
The micronutrient that can cause urine to turn yellow when consumed in excess is Vitamin B12. The color of urine is determined by the breakdown products of red blood cell destruction, and the yellow pigment responsible for the color is urochrome. Consuming certain foods, such as beets and berries, can also affect the color of urine.