what happens if you eat a green potato?

Potatoes will often go green when they're not stored properly and they're exposed to light. This is due to formation of chlorophyll (which is found in all green plants), however the green colour is a useful indicator that levels of certain toxins that are harmful to humans, known as glycoalkaloids, may be increased.

I just ate one that was green on the outside. The inside tasted normal. I didn't notice a difference. It was half green, half brown though.

Your digestive system may not be happy.

Green 💩

You die a horrible painful death.