The Mayo Clinic website says this:
: #dae8f4'>urine is made up of excess water color
: #dae8f4'>and waste products that have been filtered from your blood by your kidneys. Its yellow color
comes from urochrome, a pigment that results from the breakdown of hemoglobin, the oxygen-carrying protein in red blood cells.
: #dae8f4'>urine is often caused by medications, certain foods or food dyes. For instance, the dyes used in some sugary cereals can show up in kids' color