Feeding mealworms to chickens is not uniformly illegal in the United States, but it is heavily restricted in commercial poultry settings under FDA feed additive approval rules, and it is effectively banned for laying hens and meat birds in the UK under specific animal feed regulations. The confusion between US and UK law is the reason so many chicken keepers get this wrong.
The core issue is food safety, not nutrition. Mealworms are nutritionally excellent for chickens. The legal concern is that using unapproved insect protein in commercial poultry feed can affect the safety, labeling, and marketability of the eggs and meat those birds produce.
Backyard chicken keepers in the US occupy a different legal position than commercial operators. The rules that apply to a facility producing eggs for grocery stores are not identical to the rules governing six hens in a suburban yard.
This article breaks down why the restriction exists, who it actually applies to, how US and UK law differ, and what you can legally feed your chickens instead.
Why Is It Illegal to Feed Chickens Mealworms
Feeding mealworms to chickens in commercial poultry operations is restricted in the US because mealworm protein is not a GRAS (Generally Recognized as Safe) approved feed ingredient for poultry under FDA regulations at 21 CFR Part 573, meaning it has not been formally approved for use in commercial poultry feed formulations.
The underlying concern is food safety in the human food supply. When commercial poultry producers feed their birds, they must use ingredients that have been reviewed and approved by the FDA for use in that animal’s feed. Unapproved ingredients create uncertainty about whether the resulting eggs and meat are safe for human consumption and whether they can be accurately labeled and marketed.
Mealworms, specifically the larval form of the beetle Tenebrio molitor, have not been approved as a poultry feed ingredient under 21 CFR Part 573. This means commercial operations cannot legally use them in feed formulations without going through the FDA’s formal approval or food additive petition process.
The secondary concern is biosecurity. Insect protein sources fed to poultry can create disease transmission pathways if the insects were raised on contaminated substrates. The USDA APHIS framework for biosecurity in commercial poultry operations creates additional layers of concern about unapproved protein sources.
- FDA feed additive approval: Mealworms not listed as approved under 21 CFR Part 573
- GRAS status: Mealworm protein has not been granted GRAS status for poultry feed
- Biosecurity concern: Substrate contamination in insect production
- Food safety concern: Impact on safety and labeling of resulting poultry products
- Who it primarily affects: Commercial poultry operations selling into the human food supply chain
Is It Illegal to Feed Chickens Mealworms
Whether it is illegal to feed chickens mealworms in the US depends on whether you are a commercial poultry operator or a backyard chicken keeper, and in both cases whether the mealworms meet any applicable state feed regulations.
For commercial poultry operations, using mealworm protein in feed formulations is not permitted under current FDA feed additive approval rules. A commercial egg producer who sells eggs at retail cannot use unapproved feed ingredients without risking FDA inspection findings, product recalls, and mislabeling issues.
For backyard chicken keepers whose birds are not entering the commercial food chain, the practical federal regulatory picture is considerably less clear-cut. The FDA’s food safety regulations focus primarily on commercial food production. A backyard flock of six chickens producing eggs for the owner’s household is not subject to the same commercial feed regulation framework.
However, state departments of agriculture may have their own feed regulations that apply even to small flocks. Some states adopt AAFCO (Association of American Feed Control Officials) model regulations that restrict unapproved feed ingredients broadly.
The most important practical reality for US backyard chicken keepers: there has been essentially no documented enforcement action against individual backyard hobbyists for feeding commercially available mealworm products to small personal flocks. The regulatory concern is real, but enforcement has been directed at commercial operations.
Quick Facts:
- Commercial poultry: FDA feed additive rules restrict mealworm use (21 CFR Part 573)
- Backyard personal flocks: Less clear regulatory exposure; state rules vary
- UK backyard chickens: Effectively banned under UK Animal Feed Regulations 2010
- Enforcement focus: Commercial operations, not individual hobbyists in the US
- State rules: Vary; some adopt AAFCO model regulations broadly
Is It Legal to Feed Chickens Mealworms
Feeding mealworms to chickens is legal for personal backyard flocks in most US states as a practical matter, because the federal regulatory restrictions are primarily aimed at commercial poultry feed formulations rather than individual small-flock keepers.
The legal picture in the US is more permissive than the UK, and much more permissive than what you’ll read on UK-focused backyard chicken websites. The confusion arises because a significant portion of the chicken-keeping content on the internet is written for a UK audience, where the rules are much stricter, and that content gets consumed by US readers who don’t realize the different regulatory context.
In the United States, the primary federal food safety law governing poultry products is the Poultry Products Inspection Act (21 U.S.C. 451). This law focuses on commercial slaughter and processing facilities. The FDA’s feed additive regulations at 21 CFR Part 573 govern feed ingredients for animals whose products enter the human food supply through commercial channels.
A person keeping chickens for personal household egg consumption, not selling eggs commercially, is not operating in the commercial food supply chain in the same way. The regulatory focus shifts accordingly.
The legal risk for US backyard keepers comes primarily at the state level, where some states have adopted broad feed regulations through their state departments of agriculture. Anyone who sells eggs locally, even at a farm stand, may be subject to state regulations that mirror the federal commercial framework.
Why Are Mealworms Banned for Chickens
Mealworms are not universally banned for chickens in the US, but the ban that does exist in the UK, and the restrictions in commercial US settings, stem from biosecurity concerns, food safety law, and the precautionary principle applied to insect protein in the food chain.
The UK ban under the Animal Feed Regulations 2010 (and the underlying European Union regulations that preceded it) was motivated primarily by concerns related to prion disease transmission. The BSE (Bovine Spongiform Encephalopathy) crisis of the 1980s and 1990s in the UK created a regulatory environment deeply cautious about animal protein in the food chain. Insects are classified as animals under UK law. Feeding insect protein to chickens that then produce eggs and meat consumed by humans creates a theoretically traceable chain of protein transmission.
The precautionary logic is straightforward even if the risk from mealworms specifically is considered low by many scientists: the regulatory framework built after BSE does not make exceptions based on perceived risk level for individual protein sources. Insect protein as a category was restricted, not just ruminant protein.
In the US, the same BSE-era concerns influenced some regulatory thinking, but the FDA’s approach has been to require approval before allowing ingredients rather than implementing a blanket ban. The result is functional restriction through inaction on approvals rather than an explicit prohibition.
Key Takeaway: The ban on mealworms for chickens in the UK is a broad animal protein restriction born from BSE-era precautionary policy. In the US, the restriction is narrower, aimed at unapproved feed ingredients in commercial settings, not a blanket prohibition.
Are Mealworms Illegal for Chickens in the US
Mealworms are not categorically illegal for all chickens in the US. The restriction applies primarily to their use as an ingredient in commercial poultry feed formulations that have not received FDA approval, not to all use of mealworms with all chickens in all settings.
This distinction is the one most content on this topic gets wrong, particularly UK-sourced content that conflates the UK ban with a universal prohibition. The US regulatory framework is ingredient-approval based, not blanket-ban based.
The relevant regulatory question in the US is: has this ingredient been approved for use in poultry feed under FDA’s feed additive petition process or GRAS determination process? For mealworm protein, the answer as of 2026 is no approved use in commercial poultry feed formulations.
Companies are actively working toward FDA approval for insect protein in poultry feed. The pathway exists. Several companies have been exploring the formal petition process, and the regulatory science around insect protein as a sustainable feed source is advancing. But until FDA grants that approval, commercial use remains outside the regulatory framework.
For individual backyard hobbyists: federal law does not specifically say “you may not give mealworms from a pet store to your backyard chickens.” The federal regulatory system is not structured to reach that level of individual activity. State law is where individual backyard chicken keepers should look.
| Setting | US Legal Status | Primary Authority |
|---|---|---|
| Commercial poultry feed (unapproved ingredient) | Restricted | FDA 21 CFR Part 573 |
| Commercial feed sold to consumers | Restricted if unapproved | FDA, AAFCO |
| Backyard personal flock (not selling eggs) | No specific federal prohibition | State rules apply |
| Backyard flock selling eggs at farm stand | State rules apply; varies | State dept of agriculture |
| Organic certified poultry | NOP (National Organic Program) rules apply | USDA AMS |
Is It Illegal to Feed Chickens Mealworms in the UK
Yes, feeding mealworms to chickens is illegal for most chicken keepers in the UK under the Animal Feed Regulations 2010, which implemented EU regulation into UK law and prohibited the use of insect protein in feed for farmed animals including chickens.
The UK ban is the real, strict, comprehensively enforced prohibition that people encounter when researching this topic. UK law classifies insects as animals. UK regulations governing animal feed prohibit feeding “processed animal proteins” to poultry in most circumstances. Mealworms, as a processed animal protein, fall within this prohibition.
The UK government has signaled interest in updating these regulations post-Brexit to allow insect protein in some animal feed categories. Dried black soldier fly larvae were approved for use in some contexts, but the broader mealworm situation remained restricted as of the time of this writing.
Penalties for violating UK feed regulations can include enforcement action by the relevant trading standards or food standards authority, fines, and in serious commercial cases, prosecution.
The important point for US readers: the UK’s comprehensive ban does not apply in the United States. US chicken keepers reading UK-based poultry forums and websites should be aware that the regulatory framework described in that content is not US law.
- Governing UK law: Animal Feed Regulations 2010 (implementing EU-derived rules)
- Classification: Mealworms classified as processed animal protein
- Enforcement: Trading Standards, Food Standards Agency
- Post-Brexit changes: Some insect protein approvals under discussion; mealworms remain restricted
- Application to US readers: UK ban does not apply in the United States
Can You Feed Chickens Dried Mealworms
In the US, dried mealworms sold as pet food or bird food are available commercially, and backyard chicken keepers routinely feed them to personal flocks without documented federal enforcement action. In the UK, dried mealworms for chickens remain prohibited under the same regulations that ban live mealworms.
The “dried vs live” distinction matters in some regulatory contexts but is not the key dividing line in US law. The FDA’s concern is about unapproved feed ingredients in commercial poultry feed formulations. Whether the mealworms are dried, live, or processed does not change the underlying approval question.
In practical terms, dried mealworms are widely sold in US pet stores and online as “reptile food,” “wild bird food,” and increasingly as “chicken treats.” These products are manufactured and sold legally. The legal issue for a commercial poultry producer using them would be incorporating them as a feed ingredient without FDA approval. For a backyard keeper buying a bag of dried mealworms labeled as bird food and tossing them to their hens, the regulatory pathway is different.
Dried mealworms sold for non-poultry uses (reptile food, wild bird food) are regulated as pet food products, not as poultry feed additives. The regulatory category matters. A backyard chicken keeper using a product in a way that differs from its labeled use is in a different position than a commercial operator formulating poultry feed.
Quick Facts:
- Dried mealworms available commercially in US: Yes, as pet food and bird food
- Legality for commercial poultry feed: Restricted (unapproved ingredient)
- Legality for personal backyard flocks: No specific federal prohibition; state rules vary
- UK status: Prohibited (same as live mealworms)
- Regulatory category matters: Pet food vs poultry feed ingredient
USDA Rules on Feeding Mealworms to Chickens
The USDA does not have a single specific rule saying “you may not feed mealworms to chickens.” Instead, USDA rules affect mealworm feeding indirectly through USDA FSIS inspection requirements for commercial poultry products and USDA APHIS biosecurity frameworks for commercial poultry operations.
USDA FSIS requires that poultry products destined for commercial sale comply with the Poultry Products Inspection Act (21 U.S.C. 451). Under FSIS inspection, a commercial facility must be able to demonstrate that its production practices, including feeding practices, comply with applicable regulations. Using unapproved feed ingredients creates an inspection problem even if no specific FSIS regulation addresses mealworms by name.
USDA APHIS manages the National Poultry Improvement Plan (NPIP) and has biosecurity guidelines for commercial poultry operations. While APHIS does not specifically prohibit mealworm feeding in its published guidance, its broader biosecurity framework discourages the use of unapproved or unregulated protein sources in commercial settings.
The FDA’s 21 CFR Part 573 (Feed Additives) is technically an FDA regulation, not a USDA regulation. But FDA and USDA coordinate closely on poultry product safety. A commercial producer whose feed practices deviate from FDA guidelines creates USDA inspection complications as well.
For backyard chicken keepers, neither USDA FSIS nor USDA APHIS has specific jurisdiction over personal food production that does not enter commercial channels. USDA’s role in small-flock regulation is minimal compared to its role in commercial operations.
Can Backyard Chickens Eat Mealworms
Backyard chickens can physically eat mealworms without harm, and in most US states there is no specific law or enforced regulation that prohibits a personal backyard chicken keeper from feeding commercially available mealworm products to a small personal flock.
This is the practical answer most backyard chicken keepers are actually looking for. The regulatory concern about mealworms centers on commercial food safety. Your six backyard hens producing eggs for your household are not the primary target of FDA feed additive approval requirements.
That said, nuance matters here. If you sell eggs from your backyard flock, even informally at a farm stand, you have entered a commercial activity that may subject you to state regulations on poultry feed. State departments of agriculture in some states have adopted AAFCO model feed regulations that apply broadly, not just to large commercial operations.
The risk hierarchy for US chicken keepers feeding mealworms:
- Large commercial egg or meat producer: High regulatory risk; FDA, USDA, and state rules apply
- Small commercial producer selling eggs locally: Moderate risk; state rules apply; check your state
- Backyard keeper selling eggs informally: Some state-level risk; check local regulations
- Backyard keeper, eggs for personal use only: Minimal federal regulatory exposure; state rules may vary
Practically speaking, millions of backyard chicken keepers in the US feed commercially available dried mealworms to their flocks, and there has been no documented pattern of enforcement action against individual backyard hobbyists for this activity.
Key Takeaway: The mealworm restriction in the US applies most directly to commercial poultry feed operations. Backyard chicken keepers with personal flocks face minimal federal regulatory exposure, though state rules and any commercial activity involving egg sales change the picture.
Commercial Poultry Mealworm Feeding Rules
Commercial poultry operations in the US cannot legally use mealworm protein as an ingredient in their feed formulations because it has not been approved as a feed additive or GRAS ingredient for poultry under FDA’s 21 CFR Part 573.
The commercial poultry industry in the US is heavily regulated. Feed formulations for commercial flocks must comply with FDA’s framework for animal feed ingredients. Any protein source used in commercial poultry feed must either have received a formal feed additive approval through the petition process or have established GRAS (Generally Recognized as Safe) status for that specific use.
Mealworm protein has not completed either pathway for use in commercial US poultry feed as of 2026. Companies interested in using insect protein in commercial poultry feed must go through the formal regulatory approval process before that use is legal.
The practical consequence for a commercial producer that used mealworm protein in feed: potential FDA inspection findings, questions about the safety and labeling of resulting poultry products, and possible product recalls or market access restrictions.
The National Organic Program adds another layer for organic-certified poultry. USDA’s organic certification rules require that feed ingredients be on the National List of Allowed and Prohibited Substances. Mealworm protein is not currently on the allowed list for organic poultry production.
| Poultry Type | Mealworm Status | Key Authority |
|---|---|---|
| Conventional commercial | Unapproved, restricted | FDA 21 CFR Part 573 |
| USDA organic certified | Not on National List | USDA NOP |
| Free-range commercial | Same as conventional | FDA, USDA FSIS |
| Commercial layers (table eggs) | Unapproved | FDA, USDA FSIS |
| Commercial broilers | Unapproved | FDA, USDA FSIS |
FDA Approved Insect Protein for Poultry
As of 2026, black soldier fly larvae, Hermetia illucens, in dried form has received conditional approval or recognition in some regulatory contexts for use in aquaculture feed, and efforts are underway to expand that to poultry feed, but no insect protein species has a comprehensive FDA feed additive approval for commercial poultry use in the United States.
The regulatory science is actively evolving. Insect protein represents a significant area of interest for sustainable agriculture because insects have high feed conversion efficiency, can be raised on organic waste, and produce protein-dense biomass with a small land and water footprint. The regulatory system is beginning to respond to commercial interest in insect-based feed.
Black soldier fly larvae in dried, partially defatted form received a favorable finding from the FDA’s Center for Veterinary Medicine in the context of salmonid aquaculture feed. That is not the same as full poultry feed approval, but it represents regulatory movement toward recognizing insect protein as a viable feed ingredient category.
For mealworms (Tenebrio molitor) specifically, the European Food Safety Authority (EFSA) approved mealworm protein for human consumption in 2021, which represents a significant scientific assessment of mealworm safety. That EFSA decision does not directly change US FDA status, but it is part of the accumulating scientific evidence that may support future US regulatory approvals.
- Black soldier fly (Hermetia illucens): Advancing in regulatory approval; aquaculture focused; poultry pending
- Mealworm (Tenebrio molitor): Not FDA approved for poultry feed; EFSA approved for human consumption in EU
- Regulatory pathway: Feed additive petition (21 CFR Part 573) or GRAS determination
- Timeline: Active industry and regulatory discussion; no firm FDA approval timeline published
Black soldier Fly Larvae vs Mealworms for Chickens
Black soldier fly larvae (BSFL) are in a more advanced regulatory position than mealworms for poultry feed use in the US, with some regulatory recognition for aquaculture that may extend to poultry, while mealworms remain without any formal FDA feed approval pathway completed.
Both insects are nutritionally valuable for chickens. BSFL have a particularly high calcium content, which is beneficial for laying hens. Mealworms are high in protein and fat, making them appealing as a high-energy treat or supplement. The difference in their regulatory positions is about the status of approval petitions and existing regulatory findings, not about nutritional merit or safety concerns.
For backyard chicken keepers, this distinction is largely academic. Neither BSFL nor mealworms are prohibited for personal backyard use under any specific federal prohibition. The regulatory difference matters primarily for commercial producers who need to comply with FDA feed ingredient approval requirements.
For commercial producers or feed manufacturers, BSFL may be closer to a viable commercial pathway than mealworms. The FDA CVM’s favorable assessment of BSFL in aquaculture feed establishes scientific precedent. Extending that to poultry would require additional data and a formal regulatory process.
| Insect | FDA Poultry Approval | Regulatory Progress | Backyard Use |
|---|---|---|---|
| Black soldier fly larvae | Not yet approved for poultry | Aquaculture precedent; poultry pending | No specific prohibition |
| Mealworm (Tenebrio molitor) | Not approved | Petition process not completed | No specific prohibition |
| Cricket (Acheta domesticus) | Not approved | Some GRAS exploration | No specific prohibition |
What Can You Not Feed Chickens Legally
Beyond mealworms in commercial settings, there are several other food items that chicken keepers should avoid feeding to their flocks, either because of legal restrictions or because of documented harm to the birds or food safety.
The legal restrictions on what chickens can be fed in commercial settings come primarily from FDA feed additive approval requirements. Anything not approved as a poultry feed ingredient creates regulatory problems for commercial operations.
Beyond the commercial regulatory framework, some specific items are restricted even for backyard keepers in many states:
- Meat and animal byproducts fed to chickens: Some states restrict or prohibit feeding meat products to poultry to reduce disease transmission risk, particularly from pathogens that can transfer through the food chain
- Kitchen scraps containing meat in some states: Several states that allow kitchen scrap feeding for backyard chickens specifically prohibit including meat-containing scraps
- Garbage or waste feed: USDA and state regulations prohibit feeding garbage to swine in most states; similar restrictions for poultry vary
- Medicated feed misuse: Using feed medicated for one species in another without veterinary direction can violate federal veterinary drug labeling laws
The practical takeaway: for commercial operations, only FDA-approved feed ingredients are legal. For backyard keepers, the restrictions are narrower but still include some specific prohibitions at the state level around meat-containing scraps and garbage feeding.
Is It Illegal to Feed Chickens Kitchen Scraps
Feeding kitchen scraps to chickens is legal in most US states for backyard personal flocks, but several states have restrictions on what types of kitchen scraps can be included, particularly around meat and animal products.
The kitchen scrap question intersects with the broader swill feeding regulations that govern feeding food waste to livestock. Many states have “swill feeding” or “garbage feeding” regulations that were originally written for swine operations to prevent the spread of diseases like foot-and-mouth disease and African swine fever.
Whether these regulations apply to backyard chickens varies by state. Some states explicitly allow backyard chickens to receive kitchen scraps. Others apply their food waste feeding regulations broadly enough to include chickens. A few states require that kitchen scraps fed to poultry be heat-treated first.
States with the most specific rules about kitchen scrap feeding for chickens include California, which has historically had strict swill feeding regulations, and several other agricultural states that enforce food safety at the feed level.
The UK has different and more restrictive rules on kitchen scrap feeding for chickens. UK regulations that ban catering waste from being fed to pigs also apply to chickens. This means that in the UK, chicken keepers cannot feed their birds any kitchen scraps that have been in or around a kitchen where meat was prepared, even vegetable scraps. Again, UK law does not apply to US chicken keepers.
Quick Facts:
- Kitchen scraps for personal backyard flocks: Generally legal in most US states
- Meat-containing scraps: Some states restrict or prohibit
- Heat treatment requirements: A few states require cooking scraps before feeding
- UK kitchen scrap rules: Much stricter; apply to all kitchen scraps
- State variation: Check your state department of agriculture for specific rules
Legal Alternatives to Mealworms for Chickens
Legal alternatives to mealworms that provide similar nutritional benefits for chickens include dried black soldier fly larvae from commercially reputable sources, sunflower seeds, pumpkin seeds, scrambled eggs, and various commercially formulated high-protein chicken treats.
The goal most chicken keepers have when they reach for mealworms is providing a high-protein supplement that chickens visibly enjoy. Several legal alternatives meet that nutritional goal without the regulatory complications of mealworms in commercial settings.
Protein-rich legal alternatives:
- Dried black soldier fly larvae: Sold commercially as chicken treats; nutritionally excellent; regulatory position somewhat more favorable than mealworms
- Whole sunflower seeds: High in protein and fat; universally legal; chickens enjoy them
- Pumpkin seeds: Good protein source, often cited for potential parasite-discouraging properties (though evidence is mixed)
- Scrambled or hard-boiled eggs: High protein, universally legal, chickens love them (no, this is not cannibalistic in the way you might think; it is a standard protein supplement)
- Commercial high-protein chicken scratch mixes: Formulated to meet feed approval requirements; provide protein variety legally
- Legumes and cooked lentils: Good plant-based protein sources
For commercial operations that specifically want insect protein, working with a feed formulator and monitoring FDA regulatory developments is the appropriate path forward. The regulatory environment around insect protein for poultry feed is evolving, and approved products may become available through commercial channels within the next several years.
State Laws on Feeding Chickens Mealworms
State laws on feeding mealworms to chickens vary considerably, with most states lacking a specific mealworm prohibition but some states having broad feed regulation frameworks that technically restrict unapproved feed ingredients even for small personal flocks.
The state regulatory picture is the most locally relevant piece of this issue for US backyard chicken keepers. While federal rules focus on commercial operations, state departments of agriculture have jurisdiction over a wider range of agricultural activities, including some small-scale poultry keeping.
States that have adopted the AAFCO model feed regulations broadly may technically prohibit the use of unapproved feed ingredients for any flock, not just commercial ones. However, enforcement against individual backyard hobbyists feeding pet-store mealworms to personal flocks has not been documented as a pattern.
States where chicken keepers should be most aware of state-level rules include California (historically strict on agricultural regulations), states with active poultry industries (Arkansas, Georgia, North Carolina, Mississippi, Alabama), and states with specific backyard chicken regulations in municipal codes.
| State | Specific Mealworm Rule | General Feed Regulation | Small Flock Exemption |
|---|---|---|---|
| California | No specific rule | Broad ag regulation | Check with CDFA |
| Texas | No specific rule | AAFCO-influenced | Generally permissive |
| New York | No specific rule | Standard feed law | Generally permissive |
| Georgia | No specific rule | Active poultry regulation | Check with state dept |
| Colorado | No specific rule | Standard feed law | Generally permissive |
The most practical advice for any US backyard chicken keeper: if your flock is purely for personal consumption and you are not selling eggs or meat, the federal regulatory exposure from feeding commercially available mealworm products is minimal. If you sell eggs or meat locally, check with your state department of agriculture before using any non-standard feed ingredient.
Frequently Asked Questions
Why is it illegal to feed chickens mealworms?
Feeding mealworms to chickens in commercial poultry operations is restricted in the US because mealworm protein has not received FDA approval as a poultry feed ingredient under 21 CFR Part 573.
In the UK, the restriction is broader and stems from post-BSE animal protein regulations under the Animal Feed Regulations 2010, which classify insects as animals and restrict processed animal protein in farmed animal feed.
The concern is food safety in the human food supply, not nutritional harm to the chickens themselves.
For US backyard chicken keepers with personal flocks, there is no specific federal prohibition on feeding commercially available mealworm products.
Is feeding mealworms to backyard chickens illegal in the US?
There is no specific federal law that prohibits a backyard chicken keeper from feeding commercially available mealworms to a personal flock.
The FDA’s feed additive restrictions at 21 CFR Part 573 primarily target commercial poultry feed formulations, not individual hobbyist feeding practices.
State laws vary; some states with broad feed regulations may technically restrict unapproved feed ingredients for all flocks, not just commercial ones.
Enforcement against individual backyard hobbyists for this practice has not been documented as a pattern in the US.
Can you feed dried mealworms to chickens legally?
In the US, dried mealworms are sold legally as pet food and wild bird food, and backyard chicken keepers routinely use them for personal flocks without documented federal enforcement action.
For commercial poultry operations, dried mealworms remain an unapproved feed ingredient under FDA regulations regardless of their physical form.
In the UK, dried mealworms for chickens are prohibited under the same regulations that ban live mealworms.
The dried versus live distinction does not change the core regulatory picture in either country.
What is the difference between US and UK mealworm rules for chickens?
The UK bans mealworm feeding to chickens comprehensively under the Animal Feed Regulations 2010, which restricts processed animal protein in poultry feed broadly.
The US has no comprehensive ban; instead, FDA feed additive approval requirements restrict mealworm use in commercial poultry feed formulations under 21 CFR Part 573.
US backyard chicken keepers with personal flocks face minimal specific federal regulatory exposure, while UK backyard keepers are subject to the same rules as commercial operations.
Much of the online content describing mealworms as universally banned for chickens is UK-sourced and does not accurately describe US law.
What are the legal alternatives to mealworms for feeding chickens?
Legal protein-rich alternatives to mealworms include dried black soldier fly larvae, sunflower seeds, pumpkin seeds, scrambled eggs, and commercially formulated high-protein chicken treats.
Dried black soldier fly larvae are in a more favorable regulatory position than mealworms and are widely sold as poultry treats in the US.
Commercially formulated chicken scratch mixes and layer feeds provide approved, consistent nutrition without the regulatory complications of unapproved ingredients.
For commercial operations, consulting with a poultry nutritionist and using only FDA-approved feed ingredients is the compliant approach.
The rules around feeding mealworms to chickens are genuinely confusing, primarily because UK law gets mixed up with US law in online discussions. The actual US regulatory picture is more nuanced and considerably more permissive for backyard keepers than most sources suggest.
Bookmark this article for reference and share it with your chicken-keeping community. As FDA regulatory developments around insect protein for poultry feed continue in 2026 and beyond, the rules are likely to evolve in a more permissive direction for commercial operations as well.
