Fish and seafood
Fish and seafood are good protein sources, and fatty fish also contributes important fatty acids. It is worth knowing the difference between lean and fatty types.
Fatty fish
Salmon, mackerel, herring, trout and anchovies are naturally fat-rich and good ketogenic ingredients. They contribute omega-3 fatty acids. Weigh the fish raw and check the nutritional value for raw product.
Lean fish
Cod, haddock, pollock and tuna are lean and have a lot of protein and little fat. For a ketogenic diet, they must be combined with a fat source – for example melted butter, oil or mayonnaise.
Shrimp and shellfish
Shrimp, crab and lobster are lean protein sources with little carbohydrate. They can be used, but require extra fat to hit the ratio. Be aware that some shellfish have a small content of carbohydrate.