It seems he is overdosing on vitamins. Yellowing/light Orange may be caused by removal of excess B vitamins from the bloodstream. "Fluorescent Yellow / Greeni

It seems he is overdosing on vitamins. Yellowing/light Orange may be caused by removal of excess B vitamins from the bloodstream. "Fluorescent Yellow / Greenish urine may be caused by dietary supplemental vitamins, especially the B vitamins." http://en.wikipedia.org/wiki/Urine#Unusual_coloration http://en.wikipedia.org/wiki/Urine#Unusual_coloration