Flip a bag of dog food over, and protein is usually the first number anyone clocks. The benefits of protein for dogs are real, and understanding them makes it easier to choose the right food. But how much your dog needs is only half the picture. Where that protein comes from, and how well their body can use it, matters more than the headline percentage on the front of the bag.
This guide covers what protein does, how to read a UK label, how much different dogs actually need, and the myths worth letting go of.
What protein does for a dog
Protein supplies amino acids – the building blocks your dog’s body relies on every day. It’s not just about how much protein is in a recipe, either. Two foods can list the same percentage but differ hugely in how much a dog can actually absorb and use, which is why quality matters just as much as quantity.
Amino acids help build and repair muscle, which is especially important for growing puppies and active adult dogs. They also support skin and coat health. So, if a coat looks dull or shedding seems heavier than usual, protein quality can sometimes be part of the picture (although it’s not the only cause).
Protein is also involved in the immune system, helping the body produce antibodies, and are behind many of the enzymes and hormones that keep everything ticking along properly. And while protein can be used for energy if needed, it’s not the body’s first choice – it’s much better used for all the jobs above.
Browse our single-protein dog food range.
Quality beats quantity, and the label shows you which
This is where the front-of-pack number stops being useful. A recipe listing "26% protein" tells you the quantity, not the source, and the source is what determines how much reaches your dog. The ingredient list is where the real answer sits.
A few terms you'll see on a UK pack, decoded:
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Freshly prepared chicken (for example, "freshly prepared chicken 35%"): meat taken from the carcass, finely ground, then gently pasteurised at low temperatures (below 100°C) before going into the recipe, with the water and fat content balanced to suit it. That gentle, low-heat preparation is why it's highly digestible.
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Dried chicken or chicken meal: made from the parts of the animal not eaten by humans, such as residual meat, offal, and connective tissue, cooked at higher temperatures, then dried and ground into a concentrated protein powder. Can be a quality protein source when it's well-sourced.
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Meat and animal derivatives: a legal category rather than an ingredient in its own right. It covers all the fleshy parts of warm-blooded land animals and anything made from them, so both terms above technically sit within it.
- "With chicken": under UK and EU rules, this only needs 4% chicken in the recipe.
- "Rich in chicken": needs at least 14%, still well below a recipe built on freshly prepared chicken (UK Pet Food).
There's a useful idea behind all this called digestibility, sometimes described as biological value. It simply means how much of the protein a dog can actually break down and put to use, rather than pass straight through. Named animal proteins tend to score well here, which is why a recipe can carry a slightly lower percentage on paper and still deliver more usable protein than a higher-percentage recipe built on harder-to-digest ingredients.
The practical move when comparing packs: read the first few ingredients and check the percentage of named meat. We won't tell you one recipe beats another in absolute terms, but the label gives you everything you need to judge for yourself.
How much protein does a dog need?
Adult dogs need a minimum of roughly 18% crude protein on a dry matter basis, with puppies closer to 25%, under the FEDIAF guidelines that set the standard across the UK and EU. Working dogs and nursing mothers need more again. Sitting above the minimum isn't automatically better, but for growing and active dogs it usually is.
Looking for dog food by age? Browse our puppy food, adult dog food, and senior dog food collections.
Animal protein versus plant protein
For dogs, animal protein is the most natural fit. They digest it well, and its amino acid profile closely matches what they need. Plant proteins like peas, lentils, and soy can contribute to the total and fill in around the edges. But a recipe that relies mostly on plant protein, with little named meat, gives your dog less protein their body can actually use. Some owners choose a meat-free diet for ethical reasons. If that’s the route you take, it’s best to plan it with your vet, as getting all the essential amino acids from plant-based ingredients alone takes careful balance.
Reading protein on a UK dog food label
Two parts of the pack tell the story. The "analytical constituents" block lists crude protein, fat, fibre, ash, and moisture as percentages. This is the regulator-required summary, and the crude protein figure is a pure quantity measured by nitrogen, with nothing said about quality. The "composition" or ingredient list ranks ingredients by weight before cooking, so the named animal ingredients near the top are a good sign. And keep the labelling shorthand in mind: "with" means at least 4% of that ingredient, "rich in" at least 14% (UK Pet Food).
Single protein versus mixed protein recipes
Single protein recipes use one main meat or fish, while mixed recipes include more than one. For most healthy dogs, either can work well.
Where it can make a difference is with sensitivities. If a dog reacts to something, using a single, named protein can make it easier to work out what suits them and what doesn’t. That’s the thinking behind options like our Just 6 range, which uses a single source of animal protein.
In our core wet recipes, you’ll often see chicken alongside the named protein. For example, a recipe labelled “Turkey” will still contain at least 32% Freshly Prepared Turkey (in line with FEDIAF guidelines), but it can include other protein sources too, usually chicken. This helps us keep recipes balanced and at a price that works for everyday feeding.
If you’re looking for a single source of animal protein, our Just 6 wet range is a good option. These recipes use one protein only, which does make them a bit more expensive than the core range.
It also helps to keep things in perspective: genuine food allergies are rare. More often, it’s a sensitivity rather than a true allergy (Mueller et al., 2016).
Protein throughout your dog's life
Requirements shift as a dog ages, so the right amount changes with them.
Puppies, from around eight weeks to roughly a year, need more protein to fuel fast growth, so look for a puppy food with named meat leading the ingredients.
Larger breeds often stay on puppy food a little longer, up to 18 months. Adult dogs, from about one to nine, cover the widest range: working and active dogs sit high, steadier dogs do well in the middle. Our feeding guide helps you match amounts to your individual dog.
Senior dogs are where the old advice has flipped. Cutting protein for older dogs used to be routine; current evidence points the other way, because dogs can lose muscle with age and keeping protein quality high helps slow that loss (MDPI, 2026). Total calories may ease off, but a good senior recipe shouldn't skimp on protein quality just because your dog has had a few more birthdays.
Protein myths, cleared up
A few ideas have stuck around longer than the evidence supports.
"Too much protein wrecks a dog's kidneys" is the big one. It grew out of older studies on dogs that already had kidney disease, where restricting protein can help. For healthy dogs, current peer-reviewed work doesn't support routine restriction (Bovee, 1991). Dogs with diagnosed kidney problems are a separate case and should follow their vet's plan, which often does involve a specific renal diet.
"Higher protein always means better food" isn’t always true - what matters more is the; source and how well a dog can digest it.
"Dogs can't digest plant protein" isn't right, though animal protein is generally more unusable for them.
"Protein makes dogs hyperactive" has no good evidence behind it, since energy levels track far more with calories, exercise, breed and age.
And "raw is automatically superior" overlooks food safety: bodies like the Food Standards Agency have flagged bacterial contamination in some raw pet foods, so cooked or freshly prepared is the more cautious choice for most homes (Food Standards Agency).
Common protein sources in UK dog food
Most named proteins on a UK label do the job well, so it’s less about which is “best” and more about what suits your dog.
Chicken is the most common and usually easy to digest. Turkey is leaner, which can help with weight control, while lamb is richer and often a good option for dogs that don’t get on with poultry.
Beef is tasty and a little higher in fat. Fish like salmon and white fish bring added omega-3s, which are helpful for skin and coat, and duck, being less common, can be useful when narrowing down sensitivities.
Eggs are highly digestible but usually included in smaller amounts. Plant proteins like peas and lentils tend to play more of a supporting role in meat-based recipes.
When higher protein genuinely helps
In some situations, a higher-protein diet might be recommended, but it’s always best to make that decision with your vet.
Working dogs like gundogs and agility dogs burn through protein and fat, so higher levels support recovery and muscle. Pregnant and nursing dogs need significantly more. Dogs recovering from injury or surgery need amino acids for tissue repair. And senior dogs losing condition benefit from keeping protein quality high to slow age-related muscle loss, while watching overall calories.
