Insect Protein in Dog Food and Cat Food: What Is It, and Is It a Good Choice?

Insect protein is turning up more and more often in dog food and cat food. What it actually is, why it can be sustainable and hypoallergenic, and what to check before you try it.

More and more dog food and cat food now contains a striking ingredient: insect protein. To some owners that sounds like a curiosity, to others like a logical, sustainable step. The short answer: insect protein is a complete, highly digestible protein source that can be an interesting alternative for many dogs and cats, especially if they have food sensitivities or if you want to feed more sustainably. In this article you'll learn what insect protein actually is, why it's used more and more, how safe it is, and what to check before trying it.

What exactly is insect protein?

Insect protein is protein obtained from farmed insects, usually black soldier fly larvae (Hermetia illucens) or mealworms. The insects are farmed specifically for pet food, then dried and ground into a protein-rich meal. That meal (partly) replaces traditional protein sources such as chicken, beef or fish in dog food and cat food. The end result is a kibble, wet food or treat where insect is listed as a protein source on the label, usually combined with other ingredients for a complete nutritional profile.

Why do manufacturers choose insect protein?

There are three main reasons insect protein keeps gaining ground on the shelves.

Sustainability. Farming insects requires significantly less land, water and raw materials than raising livestock, and the carbon footprint is lower. For owners who want to reduce their pet's environmental impact, that's a real advantage.

A novel protein for allergies. Over the years, dogs and cats can become sensitive to commonly used proteins such as chicken or beef. For most pets, insects are a completely novel protein their immune system hasn't encountered before, which makes insect-based food interesting as part of an elimination diet, always in consultation with your vet.

Nutritional value. Insect protein has a favourable amino acid profile and is easy to digest. Some research also points to a possible positive effect of chitin, a component of the insect's exoskeleton, on gut flora, though more research is needed here.

Is insect protein safe and approved?

Yes. Insects used in pet food within the European Union must meet the same strict EU feed safety regulations as any other raw material. Manufacturers who use insect protein in dog food or cat food must clearly state this in the ingredients list on the packaging. Insect farming for pet food is regulated and monitored in the EU, just like the production of meat or fish meal. If you're unsure whether a specific product suits your dog or cat, for example because of an underlying condition, always check with your vet first.

Which dogs and cats can benefit most?

• Pets with a suspected food allergy or intolerance, where a novel protein can help identify the culprit ingredient.
• Dogs and cats with sensitive skin, itching, or recurring digestive issues that may be linked to their diet.
• Owners actively looking for a more sustainable alternative without compromising on nutritional value.
• Pets already on a grain-free diet: insect protein is often combined with a grain-free recipe.

What to check before you buy

First check whether it's a complete food or a supplementary treat. A complete food can be fed daily as the main diet; a treat cannot. Next, check the ingredients list: is insect listed as one of the first protein sources? Some products combine insect protein with, for example, salmon; that's not a problem unless your dog or cat is specifically sensitive to that other protein. As with any food switch, transition gradually over about seven to ten days to avoid digestive upset.

Insect-based complete food is still a fairly new, niche category in the UK range at Fidello, so you won't always find a dedicated insect-protein recipe on every shelf. In the meantime, our dry dog food collection includes grain-free and novel-protein options worth comparing, and you can browse hypoallergenic dog snacks for a lower-risk way to try a new protein. For everything else your dog needs, take a look at our full dog range.

Downsides and things to watch for

Insect-based food isn't an instant hit with every pet. Some dogs and cats need time to get used to the smell or taste, especially if they're used to meat or fish flavours. Prices are often a little higher than standard chicken- or beef-based food, partly due to smaller-scale production. Because insect protein in pet food is relatively new, there's still less long-term research available than for traditional protein sources. And although insect protein is considered hypoallergenic, no protein source is guaranteed to be one hundred percent allergy-free: if you suspect a serious allergy, an elimination diet supervised by your vet is the most reliable route.

Frequently asked questions

Is insect-based food suitable for puppies and kittens?
Some insect-protein recipes are formulated specifically for puppies and kittens with an adjusted nutritional profile. Always check the label to confirm a food is suitable for your pet's growth stage.

Can my dog or cat be allergic to insects?
In theory, any protein source can trigger an allergic reaction, including insects. Because most pets haven't been exposed to insect protein before, the chance of a reaction is small in practice, but not impossible.

Is insect protein as nutritious as meat?
Yes, provided it's a properly formulated complete food. Insect protein has a complete amino acid profile and, like other animal protein sources, can fully meet a dog's or cat's protein needs.

What's the difference between mealworms and black soldier fly larvae as a protein source?
Both are widely used insect species in pet food with a comparably high protein content. The main differences lie in the farming method and the exact fat and amino acid profile; in practice this makes little difference for most pets.

Summary

Insect protein is a complete, highly digestible and sustainable protein source that's especially interesting for pets with food sensitivities or for owners who want to feed more sustainably. It's strictly regulated in the EU and therefore safe, provided you choose a properly formulated complete food and make the switch gradually. Want to explore grain-free and novel-protein options in the meantime? Browse our dry dog food range at Fidello, or speak to your vet for personal advice.

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