And if you don’t know what to look for, you might end up cooking a toxic meal without even realizing it.

When Your Potatoes Go from Safe to Sketchy

Potatoes contain a natural toxin called solanine. It’s a built-in defense mechanism against pests, but if solanine levels get too high, it can cause nausea, headaches, and—if you really overdo it—something a lot worse. But don’t freak out just yet. Most potatoes are totally fine. You just need to know when to not eat them.

So, what are the signs your potatoes could be poisonous? Let’s get into it.

1. They’ve Turned Green

If your potato has a weird greenish tint, don’t ignore it. That’s a clear sign it’s been exposed to too much light, which causes it