Date: Around 1993
What color is urine supposed to be? What does it mean if it a
Urine typically is a shade of yellow. There are a few disorders
which change the color of urine in a dramatic way. To be specific one should
see their doctor. Generally when urine gets brown or Coke colored it suggests
a liver or bile duct problem. Red urine can be blood or can look red from
certain medicines. Black urine is classic for a genetic defect. The shades
of yellow of urine are usually related to the concentrated of urine.
Something that can really change the color of urine is the
vitamin B2 (riboflavin). If you swallow a vitamin B2 supplement, and the
amount is more than your body needs, the vitamin is excreted in the urine.
The urine will be a VERY bright yellow - almost fluorescent (except it
probably will not glow in the dark!). But there is nothing wrong with you
when this happens - it is just your body getting rid of extra vitamin B2.
Some health authorities use this as an example that taking large doses of
vitamins only makes expensive urine. However, nutritionists who advocate
large vitamin supplementation counter by saying that it is only when the
excess amounts of vitamins spill over into the urine that you know for sure
that your body is getting the maximum amount of the vitamins.
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Update: June 2012