5 août 2026

Insect Powder and Protein in Food: Swiss and EU Labelling Explained

A recurring claim on social media says that manufacturers may put up to 4% insect powder into food without telling consumers. The number is real, but the conclusion is not.

The 4 g per 100 g figure comes from one row of one European Union authorisation. It is the maximum permitted amount of one precisely defined ingredient, Acheta domesticus (house cricket) partially defatted powder, in one precisely defined category, maize flour-based snacks. The same authorisation sets different maximum levels for other foods. More importantly, it requires the insect ingredient to be named on the label and requires an allergy statement beside the ingredient list.

In other words, 4% is a use limit, not a secrecy threshold. It does not mean that any manufacturer may add any insect material to any food, and it does not cancel the duty to declare an intentionally used ingredient.

This guide explains what “insect flour”, insect powder and insect protein actually mean, how EU and Swiss rules differ, what a shopper should look for, and what the issue means for vegetarians and vegans.

The short version

No, 4% cannot be hidden. The figure applies only to maize, or corn, flour-based snacks containing the specific partially defatted house-cricket powder authorised by Commission Implementing Regulation (EU) 2023/5.
Authorisation and labelling are separate questions. Authorisation determines whether a defined novel food may be sold, in which foods and at what levels. Labelling tells consumers that it has actually been used.
The regulated ingredient is a ground insect product, not a cereal flour. Calling it “cricket flour” in everyday speech does not make it wheat flour, maize flour or another milled grain.
An intentional ingredient belongs in the ingredient list. In the EU, the exact designation for this product is “Acheta domesticus (house cricket) partially defatted powder”. A specific allergy statement must appear close to the ingredient list.
A trace is not the same as an ingredient. Accidental carry-over or cross-contact during production must not be confused with deliberate addition to a recipe.
Insects are animals. Food containing an insect ingredient is not vegetarian or vegan under the ordinary definitions of those diets, even if the rest of the recipe is plant-based.
Allergy deserves calm attention. People allergic to crustaceans, molluscs or dust mites may react to the authorised house-cricket powder. This is why the EU authorisation requires an explicit warning.

First, what is “insect flour”?

“Insect flour” is an informal commercial expression. Flour normally suggests a cereal, pulse, seed or tuber milled into a powder. The product covered by EU Regulation 2023/5 is different: it is made from whole adult house crickets that are fasted, frozen, washed, heat-treated, dried, mechanically defatted and ground. The regulation calls the result a partially defatted powder.

That distinction matters for three reasons.

First, the source is animal, not plant. The powder contains material from the whole insect, including protein and chitin. It is therefore not simply purified “protein” and is not comparable to pea protein isolate merely because both may be promoted as protein-rich ingredients.

Second, the everyday word “flour” does not replace the legal designation. For the particular EU-authorised ingredient discussed here, the label must use “Acheta domesticus (house cricket) partially defatted powder”. A front-of-pack phrase such as “with alternative protein” would not remove that obligation.

Third, “insect powder” is not one interchangeable legal category. Whole yellow mealworm powder, frozen or dried house cricket, migratory locust and partially defatted house-cricket powder are different products covered by different authorisations or national provisions. Their permitted food categories, maximum levels, specifications and required wording can differ. A rule for one preparation cannot automatically be applied to another.

The word “protein” can be equally slippery. It may describe a nutrient, a concentrated extract or a marketing position. When reading a label, do not search only for “insect protein”. Search for the species and the full ingredient designation too.

Where the 4% claim came from

Commission Implementing Regulation (EU) 2023/5 authorised Acheta domesticus (house cricket) partially defatted powder as a novel food in January 2023. Its annex lists the food categories in which that ingredient may be used and the maximum level for each category, expressed in grams per 100 grams of food as marketed or reconstituted according to instructions.

The complete set of food categories in that authorisation is:

Specified food category	Maximum for this particular house-cricket powder
Multigrain bread and rolls, crackers and breadsticks	2 g/100 g
Cereal bars	3 g/100 g
Dry pre-mixes for baked products	3 g/100 g
Biscuits	1.5 g/100 g
Dry pasta-based products	0.25 g/100 g
Dry stuffed pasta-based products	3 g/100 g
Sauces	1 g/100 g
Processed potato products; legume- and vegetable-based dishes; pizza; pasta-based products	1 g/100 g
Whey powder	3 g/100 g
Meat analogues	5 g/100 g
Soups and soup concentrates or powders	1 g/100 g
Maize (corn) flour-based snacks	4 g/100 g
Beer-like beverages	0.1 g/100 g
Chocolate confectionery	2 g/100 g
Nuts and oilseeds	2 g/100 g
Snacks other than chips	5 g/100 g
Meat preparations	2 g/100 g

These are legal ceilings, not standard recipes. A 5 g/100 g maximum does not prove that every meat analogue contains insect powder, or that a product containing it uses the maximum. A manufacturer may use less, and most products in these categories contain none at all.

The table also shows why “insects can be hidden at up to 4%” fails immediately. The figure is neither universal nor linked to a disclosure exemption. It sits in the conditions of use column. In the same annex, a separate labelling column requires:

the designation “Acheta domesticus (house cricket) partially defatted powder” on foods containing it; and
a statement that the ingredient may cause allergic reactions in consumers with known allergies to crustaceans, molluscs and products made from them, and to dust mites.

That statement must appear close to the ingredient list. The authorisation could hardly be clearer that the ingredient is to be disclosed.

Four questions that should never be collapsed into one

Rumours spread easily because several regulatory questions are compressed into the vague claim that “insects are allowed”. A reliable reading keeps four issues separate.

1. What exactly has been authorised?

Novel-food authorisations concern a defined material. Species, life stage, processing method and product form matter. Regulation 2023/5 concerns partially defatted powder obtained from whole house crickets. It does not create blanket approval for every insect species, every extract or any powder sold under a casual “insect flour” name.

2. Where may it be used, and how much?

The authorisation gives a closed list of specified food categories and a maximum level for each. That is where the 4 g/100 g number belongs. It is a limit for maize flour-based snacks, not a rule for bread, pasta, chocolate, cereal flour or food in general.

3. How must actual use be labelled?

EU food-information rules require ingredients to be listed, generally in descending order by weight at the time they are used. Regulation 2023/5 adds the exact designation and the nearby allergy statement for this novel food. A percentage limit and an ingredient declaration perform different jobs and apply together.

4. Was the material added deliberately, or is it an accidental trace?

An ingredient is intentionally used to make the food. A trace can arise unintentionally through shared storage, transport or production equipment. “May contain” language, where used, warns about possible cross-contact; it is not another way to describe a recipe ingredient. Conversely, a deliberate insect ingredient cannot be demoted to an undeclared “trace” simply because the amount is small.

Keeping those questions apart is the best defence against misleading screenshots of a regulatory table.

Which insect foods have actually been authorised in the EU?

There is no single legal item called “insect flour”. The Commission’s current information page points to several implementing acts covering different species and preparations. The main entries relevant to powders are:

Species and preparation	Legal act	Why the distinction matters
Dried Tenebrio molitor larva, whole or powdered	Regulation 2021/882	This was the first EU insect novel-food authorisation and has its own uses and wording.
Frozen, dried and powdered Tenebrio molitor larva	Regulation 2022/169	These forms are governed by a separate entry and specifications.
Frozen, dried and powdered Locusta migratoria	Regulation 2021/1975	The authorised ingredient is migratory locust, not house cricket or mealworm.
Frozen, dried and powdered Acheta domesticus	Regulation 2022/188	This is distinct from the partially defatted powder authorised in 2023.
Partially defatted Acheta domesticus powder	Regulation 2023/5	This is the preparation behind the much-shared 4 g/100 g row.
Frozen, paste, dried and powdered Alphitobius diaperinus larvae	Regulation 2023/58	Lesser mealworm larvae have their own conditions and designations.
UV-treated whole Tenebrio molitor larva powder	Regulation 2025/89	This preparation has additional vitamin D labelling conditions.

This table is a map to the legal acts, not a substitute for their annexes. Each annex specifies food categories, maximum levels, a required designation, warnings and technical specifications. Future authorisations can also change the Union list, so a manufacturer or regulator must consult the current consolidated entry rather than copy a number from another insect product.

What the EU rules mean in practice

The EU treats foods not consumed to a significant degree before 15 May 1997 as novel foods within the relevant legal definition. A novel food needs authorisation before it can be placed on the EU market. The European Commission explains that the process includes a scientific safety assessment by the European Food Safety Authority and that authorisation is granted under defined conditions of use.

This is a permission to market a particular product under particular conditions. It is not an instruction to manufacturers to use it, a prediction that it will become common, or a conclusion that it suits every consumer. The Commission itself describes insects as a very small niche in the EU food market and says that eating them remains a consumer choice.

For the partially defatted house-cricket powder, the legal chain works as follows:

the novel food is precisely specified;
only named food categories are covered;
each category has a maximum level;
a regulated ingredient designation is required;
an allergy statement is required near the ingredients;
the general food-information rules still apply.

A further nuance concerns who may place this specific novel food on the market. The scientific data supporting Regulation 2023/5 are protected until 24 January 2028. Until then, the regulation names Cricket One Co. Ltd as the applicant entitled to market the product, unless another applicant obtains an authorisation without relying on the protected evidence or with Cricket One’s agreement. This commercial data protection does not weaken the labelling duties and does not turn the authorisation into a generic permission for any supplier.

The general EU rule is useful at the supermarket: the ingredients list includes all ingredients in descending order of weight, subject to the detailed rules and limited exceptions in the food-information regulation. There is no general “under 4%” omission rule for insect powder.

Why the allergy statement is broader than the standard bold-allergen list

EU labels commonly emphasise one of 14 listed allergens, such as wheat, milk, egg, soy or crustaceans, in bold or another distinguishing type. House cricket itself is not simply added as a fifteenth item to that general list. Instead, the novel-food authorisation creates a product-specific warning because EFSA identified the potential for reactions, particularly among people with existing allergies to crustaceans, molluscs or dust mites.

The Commission FAQ also notes that allergens present in insect feed may end up in the insect product. This does not mean that every insect food contains every possible feed allergen. It means that allergic consumers should read the entire label and the specific warning rather than treating “alternative protein” as enough information.

People with a relevant diagnosed allergy should not use an online product category as a safety shortcut. The exact product, warning and other declared allergens matter.

What the Swiss rules mean

Switzerland is not an EU Member State and has its own food law. Its system nevertheless connects closely to EU novel-food decisions.

The Swiss Federal Department of Home Affairs Ordinance on Novel Foods states that novel foods listed in its annex may be placed on the Swiss market without an individual Swiss authorisation when the conditions in that annex are met. The annex includes foods that may be marketed under the EU novel-food framework, provided the requirements arising from the relevant implementing decisions and notifications are respected.

The same Swiss annex also contains a distinct national entry for three insect species:

Tenebrio molitor at the larval stage, or mealworm;
adult Acheta domesticus, or cricket;
adult Locusta migratoria, or migratory locust.

For that Swiss entry, the insects must come from farming, undergo specified treatment, and may be sold whole, cut or ground. The ordinance supplies the specific French names “ver de farine (Tenebrio molitor)”, “grillon (Acheta domesticus)” and “criquet migrateur (Locusta migratoria)”. It also says that when insects are used as an ingredient, the specific name of the food must mention this, and foods containing insects as an ingredient must be labelled by analogy with Article 11 of the Swiss Food Information Ordinance.

Two routes must therefore not be confused. One concerns novel foods marketable under EU authorisations and the conditions attached to them. The other is the separate Swiss annex entry for the three named species and forms. A company still has to identify which legal route and product specification apply. “Insects are allowed in Switzerland” is too broad to answer that question.

Ingredient lists in Switzerland

The Swiss Food Information Ordinance requires pre-packed food to carry a specific name and an ingredient list. Article 8 says all ingredients must be listed under an “ingredients” heading, using their specific names and in descending order by weight at the time the food is made. Mandatory information must be visible, legible and not concealed or obscured.

This reaches the same practical conclusion as the EU rule: a deliberately added insect ingredient is not exempt from declaration because it represents less than a chosen percentage.

Swiss rules also distinguish intentional ingredients from involuntary mixtures or contamination. Article 11 sets rules for unintentionally present substances on the Swiss list of ingredients capable of causing allergies or other adverse reactions, including thresholds and the placement of “may contain” declarations. Those provisions should not be turned into a general tolerance for undeclared intentional ingredients, nor should rules for accidental contamination be confused with the product-specific warning attached to an authorised insect novel food.

For unpackaged food, catering or a bakery counter, the practical task is harder because there may be no packet to turn over. Ask a precise question: “Does this contain cricket, mealworm, locust or any insect powder as an ingredient?” If the answer is uncertain, ask staff to check the written product information rather than relying only on a “protein-rich” or “sustainable” description.

EU and Switzerland: a practical comparison

Question	European Union	Switzerland	What the shopper should do
Can any insect be used?	No. A defined novel food must be authorised and placed on the Union list.	No. The relevant Swiss authorisation route or annex entry and its conditions must apply.	Look for a precise species and preparation, not a generic claim about “insects”.
Does 4 g/100 g apply generally?	No. It is the maximum for the specific partially defatted house-cricket powder in maize flour-based snacks under Regulation 2023/5.	No general 4% secrecy rule exists. EU-derived conditions may apply to the corresponding novel food route.	Ignore posts that detach the number from the category and ingredient.
Must intentional use be declared?	Yes. The exact designation and the general ingredient-list rules apply.	Yes. Ingredients are listed by specific name in descending weight order; specific insect rules also apply.	Read the full ingredients, not only the front of the pack.
Is an allergy warning required for this cricket powder?	Yes. It must be close to the ingredient list and refers to crustacean, mollusc and dust-mite allergies.	Applicable conditions depend on the legal route, including requirements incorporated from relevant EU decisions or the Swiss annex provisions.	Check immediately around the ingredients as well as bold text within them.
Is a trace the same as an ingredient?	No. Deliberate use and accidental cross-contact are different situations.	No. Swiss law expressly distinguishes intentionally used ingredients from involuntary mixtures or contamination.	Treat “may contain” as a cross-contact warning, not as the recipe.
Is a product containing insects vegetarian or vegan?	Dietary definitions are not created by novel-food approval. Insects are animals.	The same ethical classification applies.	Do not rely on a green package or plant imagery; check ingredients and certification.

How to read a label in under a minute

Use this checklist on snacks, bars, pasta, bakery mixes, meat alternatives and other highly formulated products.

Turn the package over. Front-of-pack terms such as “future protein”, “planet-friendly”, “high protein” or “natural” do not identify the protein source.
Find the ingredients heading. In both systems, this is where deliberately used components normally appear.
Scan for common names and Latin names. Look for house cricket, cricket, mealworm, yellow mealworm, migratory locust, lesser mealworm, Acheta domesticus, Tenebrio molitor, Locusta migratoria and Alphitobius diaperinus. This is a recognition aid, not a complete legal list for every future authorisation.
Look for the preparation. “Partially defatted powder”, “powder”, “dried”, “frozen” and “UV-treated powder” can refer to legally different products.
Check beside the ingredient list. For the powder authorised by EU Regulation 2023/5, the allergy statement must be in close proximity to the list. Do not scan only the bold words inside the list.
Separate “contains” from “may contain”. “Contains” or a named item in the ingredients indicates actual composition. “May contain” generally signals a possible accidental presence through cross-contact.
Check vegetarian or vegan certification, but still read the list. A credible certification is useful. A leaf, the colour green or the phrase “plant-forward” is not certification.
For loose food, ask a closed question. “Is the protein pea, soy, wheat, fungal or insect-derived?” is easier to verify than “Is this normal flour?”
If allergy is the issue, check every time. Recipes and suppliers can change. Keep the package and contact the manufacturer when the warning or source is unclear.

For a broader method, see our guide to reading food labels as a vegetarian and our practical allergen-aware cooking guide.

What this means for vegetarians and vegans

Insects belong to the animal kingdom. A food intentionally containing whole insects, insect powder or insect-derived protein is therefore not vegetarian and not vegan under the standard meanings of those terms.

This can be obscured by the context in which the ingredient is sold. Insect products are often presented beside plant proteins as “alternative proteins”. That category describes an alternative to conventional meat, not a plant origin. A cricket-enriched cereal bar may be dairy-free and egg-free, but it is still not vegan. A burger combining peas with insect powder may use less conventional meat, but it is not vegetarian.

For most vegetarians, the practical rule is straightforward: if an insect appears in the ingredients, choose another product. The range of plant options is already broad. Lentils, beans, chickpeas, tofu, tempeh, seitan, pea protein, seeds and whole grains can all contribute to protein intake. Our complete guide to plant proteins explains portions and combinations without requiring insect ingredients.

Accidental traces create a different ethical question. Vegan and vegetarian definitions focus primarily on ingredients and production choices, while individuals differ in how they handle unavoidable cross-contact. A precautionary “may contain” statement does not mean the animal-derived substance was deliberately included in the recipe. Someone managing a serious allergy may still need to avoid the product, but that medical risk question is different from the question of intentional formulation.

If a strict purchasing standard matters to you, use a recognised vegetarian or vegan certification and read the ingredients. Our comparison of vegan and vegetarian diets covers the distinction in more detail.

Allergy without alarmism

The authorised house-cricket powder was assessed as safe under its proposed uses and use levels, but “safe under authorised conditions” does not mean “incapable of causing an allergic reaction”. Many ordinary authorised foods can cause allergies. The relevant issue is identifying who may be at greater risk and giving them usable information.

For this powder, the EU regulation highlights known allergies to:

crustaceans and products made from them;
molluscs and products made from them;
dust mites.

The Commission FAQ explains that insect proteins may provoke allergic reactions in susceptible people and that allergens from insect feed may also be present. The correct response is neither panic nor dismissal. Consumers without relevant allergies can make an informed preference choice. Consumers with a relevant allergy should take the specific warning seriously and clarify uncertainty with the manufacturer or their allergy specialist.

It is also worth resisting a common misunderstanding: the allergy warning does not prove that the ingredient is “hidden”. It proves the opposite. The warning is additional information required because the insect ingredient is present.

Common mistakes when discussing insect ingredients

“The EU allows 4% insects in all food”

False. The 4 g/100 g row concerns maize flour-based snacks and one specific partially defatted house-cricket powder. Other categories in the same authorisation have different maxima, and foods outside the specified categories are not covered by that row.

“Anything below 4% does not have to appear on the label”

False. The maximum use level and the declaration requirement are separate. Regulation 2023/5 expressly supplies the ingredient designation and allergy wording.

“Cricket flour is just another flour”

Misleading. It is a powder made from an animal. It does not behave as a cereal identity on a label and does not become plant-based because the finished snack also contains maize or wheat flour.

“Authorised means it is now in bread, pasta and chocolate everywhere”

False. Authorisation creates a legal possibility under conditions. It does not establish actual use in every product, and the Commission describes the EU insect-food market as a small niche.

“If the packet says high protein, the protein might secretly be insects”

A high-protein claim alone does not identify the source, but an intentionally used insect ingredient still has to be declared. Read the ingredients rather than guessing from the nutrition table.

“A ‘may contain’ warning means insects are part of the recipe”

Not necessarily. Precautionary wording concerns possible accidental presence or cross-contact. An ingredient entry means deliberate use. Keep the two situations separate.

“If an insect novel food passed a safety assessment, nobody can be allergic to it”

False. The authorisation itself requires an allergy statement for the house-cricket powder. Safety assessment, conditions of use and individual allergy are compatible facts, not contradictions.

Frequently asked questions

Can manufacturers hide 4% insect powder in food?

No. The 4 g/100 g figure is a category-specific maximum for Acheta domesticus partially defatted powder in maize flour-based snacks under one EU authorisation. The ingredient must be designated on the label, and a specific allergy statement must sit near the ingredient list.

Does the rule cover ordinary wheat flour?

No. The 4 g/100 g category is “maize flour-based snacks”. It describes the finished food category in which the insect powder may be used. It does not redefine wheat flour, maize flour or cereal flour as insect material.

Could a bread contain this particular powder?

The EU authorisation includes a category for multigrain bread and rolls, crackers and breadsticks, with a maximum of 2 g/100 g for this specific powder. Actual use would still need to be declared. That 2 g/100 g figure cannot be transferred to every kind of bread or to another insect preparation without checking its own authorisation.

What exact wording should I look for in the EU?

For the product covered by Regulation 2023/5, look for “Acheta domesticus (house cricket) partially defatted powder”. Other authorised insect foods have their own prescribed designations, so also recognise the common and Latin species names.

Is insect powder vegetarian if the insects were farmed for food?

No. Farming method does not change the fact that insects are animals. Food containing them is neither vegetarian nor vegan in the usual sense.

Are insect foods automatically healthier because they contain protein?

No. Protein is one part of a food’s nutritional profile. A snack can contain protein and still be high in salt, sugar or saturated fat. Assess the whole product, just as you would with a plant-based meat alternative.

Is “alternative protein” the same as “plant protein”?

No. Alternative protein can include plants, fungi, fermentation-derived products, cultivated products and insects. If you want plant protein, verify the ingredient source.

What if a restaurant cannot tell me whether a powder is insect-derived?

Ask staff to check the product specification or supplier ingredient sheet. A vague assurance based on appearance is not useful, especially where allergy is involved. Choose a clearly identified alternative if the information remains uncertain.

Does no “may contain insects” warning guarantee that there are no accidental traces?

No such simple conclusion should be drawn. Trace statements and their legal treatment differ from ingredient declarations and can depend on the substance and jurisdiction. If strict avoidance is important because of allergy, ask the manufacturer about cross-contact controls.

Will every insect ingredient carry the same crustacean, mollusc and dust-mite warning?

Do not assume so. The warning discussed here is tied to the relevant authorisation, and different insect novel foods have their own conditions. Read the actual wording on the product.

The sensible conclusion

There is a legitimate debate about whether people want to eat insects, how those products should be marketed and whether they fit personal ethical or environmental priorities. That debate does not need a false secrecy claim.

The regulatory picture is more ordinary and more useful. A defined insect preparation is assessed and authorised for defined uses. Category-specific maximum levels control where and how much may be used. Ingredient and warning rules tell shoppers what is actually in a product. Intentional addition is not the same as accidental trace contamination.

For vegetarians and vegans, the decision is uncomplicated once the label is read: insects are animals, so an insect ingredient is not suitable. For everyone else, the choice remains personal. The key is to make it from the complete ingredient list, not from a detached “4%” screenshot.

If your wider aim is to choose well-labelled protein sources, continue with our plant-protein guide or our explanation of Swiss food and organic labels.