Many of Clover Leaf’s products are certified Kosher. Look for the encircled U symbol on our labels. Products currently certified Kosher are: all non-flavoured Tuna products, all non-flavoured Salmon products, our line of Flavoured White Tuna, all Kippered Fillets, all Skinless Boneless Sardines, all Brisling Sardines, and all Brunswick Sardines and Seafood Snacks.