Vegan Bodybuilding & Fitness

Some drug users at my old work used to take riboflavin to make their pee yellow despite having watered it down for drug testing.

To me a side benefit is that I remember to take them when I have clear pee. I take a b-vitamin complex (for B-12) which is left over from my brieg non-vegan period.

The reason for your urine being neon is the B vitamins they put in them.