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UNDERSTAND THE INGREDIENT

Tree nut Allergy

Understand the different names and forms of tree nuts, what to check on ingredients lists, and how to explain your allergy when eating away from home.

Start with the basics ↓
A little ingredient knowledge.
Hover or tap to open the walnut

START WITH THE SOURCE

Understanding tree nut allergy.

Name the specific nut you need to avoid. Almond, cashew and walnut are distinct ingredients, and an allergy to one does not by itself establish allergy to every other nut.

Nuts add body as well as crunch. They can become flour, butter, drinks or smooth pastes, so a food can contain nuts without any visible pieces.

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.

ASCIA: dietary guidance ↗

01 / RECOGNISE THE INGREDIENT

Follow tree nuts through its different forms.

Learn the forms of the nuts in your allergy plan: almond flour, cashew cream and hazelnut paste are useful examples. These are selected examples, not an exhaustive list. Follow the ingredient into powders, mixtures and finishing additions.

01

Recognisable nuts

Almond · cashew · walnut · pecan

Whole nuts and their flours, meals and butters. Use the specific nut names in your agreed avoidance list when reading a recipe.

02

More names to recognise

Hazelnut / filbert · pistachio · macadamia · Brazil nut

Start with the specific nut used. A different nut should be assessed separately; a mixed container also needs a handling check.

03

Less visible forms

Marzipan · nut paste · praline · nut drinks

Read the formulation; names and mixtures can vary. Check the base of a dairy alternative or pastry filling, not just its product category.

ASCIA: dietary guidance ↗

Explore tree nuts ingredient names →

02 / READ THE WHOLE LABEL

Check the ingredients, not just the product name.

Check every time you buy

Check pesto, pastry fillings, confectionery and plant-based sauces. Dairy-free can still mean nut-based; recipes with the same name can use different nuts.

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.

ASCIA: dietary guidance ↗

Labels change across borders

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.

Allergy & Anaphylaxis Australia: labelling by country ↗
Add destination-specific guidance →

What can I eat instead?

Match the replacement to texture or flavour, then check your own avoidance list. Peanut and sesame are separate allergens, not universally suitable swaps. Check the replacement as carefully as the original. If you regularly replace a major food group, discuss nutritional needs with a dietitian.

In place ofOptions to considerWhat to check
Nut butter or pasteSunflower-seed butter, if toleratedCheck sesame or other seed allergies and shared production.
Almond meal in bakingA rice- or wheat-flour recipe, if toleratedA flour swap is not automatically one-for-one.
Cashew cream or almond drinkA tolerated dairy, oat or rice alternativeCheck ingredients and nutritional suitability; these choices are not interchangeable for everyone.

03 / FOLLOW THE PREPARATION

Explain the allergy, then ask about the kitchen.

Mixed nut containers, bakery equipment and shared blenders can introduce a different nut. Specify the nut and ask about shared handling, not just the recipe.

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.

FARE: avoiding cross-contact ↗

Explore preparation guidance →

COMMON QUESTIONS

The details that often need a closer look.

Does one nut allergy mean every nut must be avoided?

Not necessarily, but the decision needs individual assessment. Use a specific avoidance list from your allergy team. Closely related nuts and shared processing both matter; do not test an unfamiliar nut based on its appearance.

ASCIA: dietary guidance ↗
Is peanut part of the tree nut group?

Peanut is a legume. Peanut and tree nut allergies can occur together, but they are different diagnoses. A peanut-free claim does not establish that a product is free from almonds, cashews or other tree nuts.

ASCIA: dietary guidance ↗
Do nut flour and nut drinks still count?

Yes. Grinding or blending changes the form, not the ingredient’s origin. Check flours, meals, pastes, creams and drinks for the specific nut. A smooth sauce can contain nuts even when there are no crunchy pieces.

ASCIA: dietary guidance ↗
Is dairy-free a useful nut-allergy claim?

Dairy-free does not mean nut-free. Cashew cream and almond drinks are examples of milk replacements that introduce nuts. Read the complete ingredients list, including the base used in a cheese or dessert substitute.

ASCIA: dietary guidance ↗
Can I choose the nuts I tolerate from a mixed bowl?

A shared container can bring nuts into contact before you pick them out. Ask about separate storage and handling, and follow your individual advice on products with cross-contact warnings. Sorting a mix is not a reliable way to separate allergens.

ASCIA: dietary guidance ↗

Overview expanded 21 September 2026 using the linked references. Independent clinical review remains pending.

Tree nuts ingredients, explained.

Look up the ingredient itself, a derivative or a blend. Keep known sources separate from names that need more context.

14 ingredient entries

Named sources & derivatives

Recognise the ingredient connection. The species, nut or form covered by your allergy plan still matters.

Check the specific product

Establish the ingredients, source or processing rather than inferring from the category name.

  • Product checks

    Pesto & savoury pastes

    May use pine nuts, cashews, walnuts or other nuts.

    A green sauce is not defined by basil alone. Check the complete blend.

  • Product checks

    Praline, nougat & chocolate spreads

    Nut species and recipes vary.

    Establish whether hazelnut, almond, pistachio or another nut is used.

  • Product checks

    Plant drinks & cream alternatives

    Some are almond- or cashew-based; others use different plants.

    “Dairy-free” does not mean tree-nut-free.

  • Product checks

    Nut oils & extracts

    Source nut and processing matter.

    Do not assume a clear oil or flavouring contains no relevant protein. Seek product information and individual advice.

  • Product checks

    Coconut

    Botanically different from the familiar tree nuts listed here.

    Coconut allergy is separate. Do not infer either allergy or tolerance from a tree-nut diagnosis; labelling categories also vary.

Ingredient links search the wider ingredient catalogue. Sources for this guide are listed below.

Tree nuts & shared preparation.

Follow the routes an allergen can take through a kitchen—from storage to the finished plate. These examples apply at home and when eating out.

Ordinary cooking does not reliably remove food allergens. Preventing transfer and removing residue are separate from choosing ingredients.

Paste residue around a blender blade, with almonds and sesame seeds beside the jar.

01 / PREPARATION

Nut milks, pastes & blenders

Nut drinks and pastes coat blades, seals and lids. The particular nut matters, but another drink made in the same jar can pick up residue.

An everyday example

An almond drink is blended before a fruit smoothie.

What addresses it

  • Identify the nuts handled by the equipment.
  • Clean all food-contact parts thoroughly or use separately managed equipment.
A preparation board with crumbs beside cleaning supplies.

02 / PREPARATION

Nut flour & preparation benches

Fine almond or other nut flour can spread during measuring and mixing. Brushing a worktop is not a substitute for cleaning it.

An everyday example

Almond flour is measured next to another mixing bowl.

What addresses it

  • Separate flour handling from preparation for a nut-allergic person.
  • Clean surfaces and wash hands before the next task.
A used spoon between two sauces beside separate utensils on a tray.

03 / PREPARATION

Pesto, spreads & serving spoons

Small amounts of nut paste can move between sauces, utensils and dishes. A spoon that looks mostly clean can still carry food residue.

An everyday example

A spoon moves from walnut pesto into another dressing.

What addresses it

  • Keep each sauce with its own utensil.
  • Use an uncontaminated portion if a shared utensil has entered a container.
Cooking equipment with food residue on its surface.

04 / PREPARATION

Pans, trays & bakery equipment

Nut pieces or oily paste can remain on trays and equipment. Heat does not reliably make this residue harmless.

An everyday example

A tray used for nut pastries is reused for another batch.

What addresses it

  • Remove food residue and clean equipment before reuse.
  • Use separate equipment when cleaning hard-to-reach parts is not reliable.
Closed ingredient containers beside an open spread jar and spilled sesame seeds.

05 / PREPARATION

Mixed nuts & shared scoops

A mixed container can connect several nuts even when only one is picked out. Bulk scoops and topping bars can spread fragments.

An everyday example

A scoop is shared between cashews, almonds and a seed topping.

What addresses it

  • Keep relevant nuts and allergy-managed ingredients separately contained.
  • Identify the specific nuts in mixes; do not rely on removing visible pieces.

Local ingredients, language and country-specific eating-out guidance belong in the destination guide.

Choose a country →

ADD THE LOCAL CONTEXT

Tree nuts guidance for your destination.

Choose a country for its dedicated allergen page. Local label rules, ingredient names, language and eating-out guidance belong there.

Country pages are available; their local allergen guidance is still being prepared.