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Ah! Now, well, you see....... erm....... yes, I'm glad you asked me that kweschun.No, no I'm not. In fact I don't know why you have asked such a faecesous kweschun.Why is poo brown??? Let's face it, if your poo did come out in all the colours of the rainbow, you'd be off to the doc a bit rapid."Doctor, doctor, help me!"
The bottom line (sorry!) is that there is a chemical produced in the colon called stercobilin which is made from the bilirubin produced when haemoglobin from red blood cells is broken down. Bilirubin is a yellow colour, stercobilin is brown. Poos can also be artificially darkened by the presence of blood, if a person has bleeding from higher up in the GI tract.Here's the link to a answer I gave to this question on the radio a few years back:http://www.thenakedscientists.com/HTML/content/latest-questions/question/2352/Chris
You can also change the color of your waste with diet.Eat lots of milk and cheese for a day, and it will turn whiter in color.A pound or two of black jelly beans, and it will turn blackish in color.And, a few fresh beats, and you can turn it blood red.
I'm just going to say that the blue colour of this stuff...sorry, you cannot view external links. To see them, please
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