A little ingredient knowledge.Hover or tap to reveal the sardine
START WITH THE SOURCE
Understanding fish allergy.
Fish allergy concerns proteins in finned fish, including species eaten fresh, canned, smoked or dried. A fish fillet is only one form: fish sauce, fish stock and paste can spread the ingredient throughout a dish.
Follow the seasoning as well as the main protein. A vegetable dish or meat dish may use fish-derived flavouring; its name alone will not reveal the whole recipe.
Use these ingredient and preparation checks alongside your personal allergy plan. Knowing the name is the first step; the complete recipe and handling matter too. If your avoidance needs are unclear, ask your allergy team before changing what you eat.
Learn names such as anchovy, sardine and bonito flakes. Dried flakes and concentrated sauces still need a fish-allergy check. These are selected examples, not an exhaustive list. Follow the ingredient into powders, mixtures and finishing additions.
01
Named fish
Salmon · tuna · cod · haddock · trout
Fresh, canned, smoked and dried forms still identify fish. Confirm the species and the ingredients added during preserving or preparation.
Ask what is in the broth, dressing and seasoning paste. Vegetable-based does not establish fish-free, and recipes can change between restaurants.
Read the full ingredients list each time, including the ingredients inside a mix or sauce. Keep the packet available if staff need to check it. A product name or front-of-pack claim cannot answer every ingredient question.
Use the labelling guidance for the country where the food is sold. The foods covered, wording and presentation of allergen information can differ. Do not assume a familiar brand has the same recipe everywhere.
For unpackaged food, ask for ingredient information from the person preparing it. If a name or translation is unclear, keep the original wording available rather than guessing from a partial translation.
A checked vegetable stock may replace fish stock, but check the whole blend. A substitute for fish sauce also needs checking for soy and other allergens. Check the replacement as carefully as the original. If you regularly replace a major food group, discuss nutritional needs with a dietitian.
In place of
Options to consider
What to check
Fish stock
Options to considerA checked vegetable or mushroom stock
What to checkKeep its pot, water and ladle separate from fish stock.
Anchovy seasoning
Options to considerCapers or mushrooms in a recipe without fish
What to checkCheck the complete sauce; removing anchovy pieces does not remove a blended ingredient.
Fish as the main protein
Options to considerA tolerated option such as beans, tofu or chicken
What to checkShellfish is not an automatic alternative. Follow your individual allergy plan.
03 / FOLLOW THE PREPARATION
Explain the allergy, then ask about the kitchen.
Shared fryers, grills and utensils need discussion. Fish and shellfish are different groups, but they may be handled together; use your specialist’s advice on the species you avoid.
Ask staff to check the recipe and any bought-in ingredients with the kitchen. Include the sauce, garnish and finishing step in the conversation, and explain which ingredients you need to avoid.
Get a clear answer about both ingredients and preparation before ordering. If the kitchen cannot confirm them, choose another option. A translated card can support this conversation when you do not share a language.
Finned fish and shellfish are separate groups. A person can react to either or both. Shared seafood preparation also matters, so check the species you avoid and the equipment used.
Tolerance varies between people and species. Do not trial a new fish without specialist advice. A menu description such as white fish is too broad to identify the species or establish suitability.
Check broth, dressing and seasoning. Fish sauce, anchovy and bonito flakes can add flavour without a visible fillet. Ask about the cooking base and toppings separately, especially when a menu describes only vegetables.
Cooking is not a reliable way to remove fish allergens. Some people tolerate particular processed forms, but this requires individual assessment. Do not treat canned, smoked or fried fish as automatically different for your allergy.
Cooking can release protein in droplets or steam. This is different from smell alone. Discuss cooking-area exposure with your specialist and consider the kitchen arrangement when choosing a venue.
