Why Do Potatoes Sometimes Turn Green? - Chowhound

Solanine has a bitter taste, so it may make a potato less tasty to eat. But more importantly, it's a toxin, so you'll want to avoid eating too much of a green potato to protect yourself from it. Solanine is basically a naturally-produced pesticide that protects the potato from insects and creatures that would eat it. Unfortunately, it may also protect the potato from humans — if a person eats too much solanine,…