S2021·E7 – Subway Tuna Is NOT Fish?

Oh Subway, it was not so long ago that we were trying to figure out if your bread was REALLY bread or if it was secretly cake. Well, it looks like we are not ready to say goodbye to your scandals. Today, we are opening the sandwich on what exactly you have been putting inside them. Specifically, your "tuna". Is it tuna? Is it even FISH? Time to find out!