Most fish is fine to eat in moderation, however some types of fish are very high in purines and should be avoided.
Avoid or severely moderate the following fish.
These fish contain on average 50-150mg of purines per 100g and should be moderated
Snapper
Cod
Gurnard
Salmon
Tuna
Flounder
These fish contain on average over 150mg of purines per 100g and should be avoided
Herring
Mackerel
Trout
Crayfish
Lobster
Sardines
Anchovies
Whitebait
Fish Sauce
Caviar/Roe
Any fish that comes in a can