Originally Posted by GREASYHANDS
Why does the blue slushie turn my excrement green?
Methylene blue used as the coloring agent in slushie/
's, etc., reacts with certain protiens found in the lower intestine. The methylene blue cleaves it's chlorine atom and accepts a suphur one in it's place. The new arrangement on the methyl group reflects light in the green spectrum giving your dookies the weird green color.