When removing the head from a raw shrimp, I usually expect orangey goo to come out / be visible (the yummy stuff when you suck it of a prepared shrimp, I suppose :) ). I also usually have fresh shrimps. Today however I bought frozen ones, and some of them have green instead of an orangey goo.
The "green ones" all look fresh, and, IME usually more important, smell fresh (taking in to account the defrosted seafood nature of things).
Question is: Are they good to eat? Does this happen "naturally"?
The box in which they came didn't look like frosting-defrosting-re-(re-)frosting happened, and wasn't over the expiry date.
Personally, I think it's due to the diet of the shrimps (I'm close to 100% certain that they're farmed, but I don't have the box anymore), and that it's the color of algae I'm seeing. While removing the digestive tract of the "green ones", they seemed to share the same uranium like hue of green.
Without waiting for an answer, and being the dare devil (and hungry guy) I am, I'm going to move diligently forward. For all those reading this: Should there not be an accepted answer, let it be known not to eat shrimps with green goo coming out when taking of the heads.