Fish Products:
- Caviar
- Cod Roe
- Herring Roe
- Seafood or Crab Sticks
Oily Fish:
- Carp
- Herrings
- Kippers
- Mackerel (Unsmoked) fresh/canned in brine/tomato sauce
- Pilchards, canned in brine/tomato sauce
- Rollmop Herring
- Salmon, fresh/canned/smoked
- Sardines, canned in brine/tomato sauce
- Sardines, Fresh
- Sprats
- Trout, Fresh or Smoked
- Tuna, canned in brine or spring water
- Tuna, Fresh
Shellfish:
- Abalone
- Clams
- Cockles
- Crab, Canned in brine or Fresh
- Crayfish
- Cuttlefish
- Lobster
- Mussels
- Octopus
- Oysters
- Prawns
- Scallops
- Shrimps
- Squid
- Whelks
- Winkles
White Fish:
- Bream
- Cod, Plain or Smoked
- Coley
- Dab
- Dover Sole
- Flounder
- Haddock, Plain or Smoked
- Hake
- Halibut
- Hoki
- John Dory
- Lemon Sole
- Monkfish
- Mullet
- Plaice
- Pollock
- Red Snapper
- River Cobbler
- Sea Bass
- Tilapia
- Turbot
- Whiting
Source: https://fatgirlskinny.net/syn-free-foods-slimming-world-essentials/