Worcestershire sauce
Since many Worcestershire sauces include anchovies, it is avoided by those who are allergic to fish, and others who avoid eating fish, such as vegetarians. The "Codex Alimentarius" recommends that prepared food containing Worcestershire sauce with anchovies include a label warning of fish content although this is not required in most jurisdictions. The US Department of Agriculture has required the recall of some products with undeclared Worcestershire sauce. Several brands sell anchovy-free varieties of Worcestershire sauce, often labelled as vegetarian or vegan. Generally, Orthodox Jews refrain from eating fish and meat in the same dish, so they do not use traditional Worcestershire sauce to season meat. However, certain brands are certified to contain less than 1/60 of the fish product and can be used with meat.