Brown Tuna?

[hanataro]

I bought a can of "Tuna Flakes," which I assumed was the same as regular canned tuna in the states [like bumblebee or chicken of the sea, etc], and when I opened it tonight, I saw it was all brown. And weird.

Is this normal? Is it just the oil? Does it need to be cooked? Is it rotten? Have I been poop-duped?

Any info is appreciated. : ) This country is weird. lol. ^_^;