I have one to Shellfish. Though, I have heard some people can eat certain ones. I know I can't eat crab or shrimp. I think lobster, too. But I don't know about clams and oysters. A co-worker of mine says he's allergic to Crab, lobster, and shrimp, but not oysters. I know others who are allergic to all. But does PotD have any allergies?