Organic material from its environment
It is not a vein in the human sense, and it does not circulate blood.
Is deveining shrimp required for safety?
This is the most important question, and the answer is generally no—deveining shrimp is not strictly required for food safety.
Properly cooked shrimp are safe to eat even if
the digestive tract is still present. Cooking at high temperatures kills harmful bacteria and pathogens that might otherwise cause illness.
However, there are a few considerations: