Tuna Eyeball

They say that tuna eyeballs taste like squid and is considered quite tasty in Japan. The eyeballs also have Dha, a polyunsaturated omega 3 fatty acid which is a major structural fat in the brain. So if you can get over the fact that your food is literally staring at you as it goes into your mouth and down your throat, tuna eyeballs are quite healthy for you.