you know, your stuff is actually green when you eat healthy, as in eat a stuff-ton of vegetables etc
This is wrong.
Your stuff is green when things in your stomach/bowels don't get digested and absorbed that are bad, so they pass through your intestines into your stuff.
If what you were saying was correct, then Trix cereal should be healthy. But it clearly isn't, and whenever I eat it my stuff turns bright green =/.