Understanding What’s in Your Dog’s Food
Choosing food for your dog should feel straightforward. But when labels are filled with percentages, nutritional terms and long ingredient lists, it can be difficult to know what you are actually buying.
Terms such as complete, grain-free, high-meat and all life stages can all provide useful information—but only when you understand what they mean.
This guide explains how to read a dog food label, what to look for in the ingredients and why the overall formulation matters more than any single claim on the front of the bag.
Start with one important word: complete
One of the first things to check is whether the product is described as a complete or complementary dog food.
A complete dog food is formulated to provide all the essential nutrients a dog needs when it is fed according to the manufacturer’s instructions. This includes the right balance of protein, fats, vitamins and minerals.
A complementary food is designed to be fed alongside something else. Treats, toppers and some meat-based products may be complementary rather than complete, which means they should not usually make up your dog’s entire diet.
This distinction is particularly important when comparing foods that look similar. A product may contain appealing ingredients, but that does not automatically mean it provides a nutritionally balanced everyday diet.
Wolfworthy’s recipes are complete dry dog foods formulated for dogs, puppies and seniors, making them suitable for everyday feeding when the recommended feeding guidance is followed.
How to read the composition list
On UK pet food packaging, the ingredients are usually shown under the heading composition.
Ingredients are listed in descending order by weight, so the first ingredient is present in the greatest quantity at the point the ingredients are added.
A clearly named list can help you understand the main sources of nutrition in the food. Look for details such as:
- The named meat or fish sources
- Whether ingredients are fresh, dried or dehydrated
- The main carbohydrate sources
- The oils and fats included
- Added vitamins, minerals or nutritional supplements
- Whether percentages are given for the main ingredients
Named ingredients can provide more transparency than broad descriptions. For example, “fresh salmon”, “dehydrated turkey” or “beef liver” tells you more than a general term that does not identify the animal source.
However, the composition list is only one part of the picture. Ingredients also need to be included in the right proportions to produce a complete and balanced food.
What does “high-meat” dog food actually mean?
There is no single percentage that automatically makes a dog food suitable for every dog. However, a high proportion of clearly named animal ingredients can help owners understand where much of the food’s protein and fat comes from.
It is also important to look beyond the headline percentage.
A high-meat formulation may include a combination of:
- Fresh meat or fish
- Dehydrated meat or fish
- Organ meat
- Animal fats
- Fish oils
- Eggs
- Meat or fish gravy
Fresh meat naturally contains water, while dehydrated meat has had much of its moisture removed. This is why two ingredients can contribute differently to the finished food even if their percentages initially look similar.
Wolfworthy’s recipes are made with 80% animal ingredients, with the exact combination clearly listed for each recipe. Depending on the recipe, these include named ingredients such as chicken, salmon, turkey, duck, pork, beef, trout and herring.
The remaining ingredients help provide carbohydrates, fibre, vitamins, minerals and other nutrients needed within the complete recipe.
What do the analytical constituents tell you?
Alongside the composition, you should find a section called analytical constituents. This usually includes:
- Crude protein
- Crude oils and fats
- Crude fibre
- Crude ash
- Moisture, where required
These figures describe the nutritional composition of the food, but they should not be read in isolation.
For example, a meat percentage and a protein percentage are not the same thing. Meat and fish contain water, fat, minerals and other components as well as protein. An “80% animal ingredients” recipe does not mean the food contains 80% protein.
It can also be misleading to compare the percentages on dry food directly with those on wet or fresh food. Wet foods contain substantially more moisture, which affects how their nutritional percentages appear on the label.
Grain-free versus traditional kibble
Traditional dry dog food often uses grains such as rice, oats, maize, barley or wheat as carbohydrate sources. Grain-free food replaces these with alternatives such as sweet potato, tapioca or pulses.
Grain-free therefore does not mean carbohydrate-free.
It is also important not to assume that grain-free food is automatically healthier than grain-inclusive food. Many dogs can digest properly processed grains without difficulty, and a well-formulated grain-inclusive food may be a perfectly appropriate choice.
Likewise, a grain-free food can be a suitable option when it is complete, nutritionally balanced and appropriate for the individual dog.
Rather than judging a food solely on whether it contains grain, consider:
- Whether it is complete
- Whether the animal ingredients are clearly named
- The overall balance of the formulation
- The carbohydrate sources used
- Your dog’s age, activity level and individual needs
- How well your dog does on the food
True food allergies are less common than many owners assume, and animal proteins can be triggers as well as grains. If you suspect your dog has a food allergy or intolerance, speak to your vet before removing ingredients or beginning a restricted diet.
What does “all life stages” mean?
An all-life-stage food is formulated to provide appropriate nutrition across different stages of a dog’s life, from puppyhood through adulthood.
Wolfworthy is formulated to meet FEDIAF nutritional standards for all life stages. Portion sizes still need to be adjusted according to your dog’s:
- Age
- Current weight
- Expected adult weight
- Activity level
- Body condition
- Individual metabolism
Puppies, working dogs and highly active dogs may require more energy than a less active adult or senior dog.
Large-breed puppies can also have particular nutritional requirements because of the importance of controlled growth and mineral balance. If you are unsure about feeding a puppy or a dog with specific health needs, ask your vet for individual advice.
Look for clarity rather than buzzwords
Good packaging should help you make an informed choice rather than relying only on attractive claims.
Before choosing a food, ask:
- Is it complete or complementary?
- Are the main animal ingredients clearly named?
- Are percentages provided for the ingredients being highlighted?
- Which carbohydrate sources are used?
- Is it appropriate for my dog’s life stage?
- Are feeding instructions clearly provided?
- Can I find the full composition and analytical information?
- Does the manufacturer provide clear contact and traceability details?
No single ingredient guarantees quality. What matters is how the ingredients work together as part of a balanced formulation—and whether the company communicates clearly about what is inside the food.
Making a careful change
If you decide to change your dog’s food, introduce the new recipe gradually unless your vet advises otherwise.
Our typical transition looks like this:
🗓 Days 1-4 → 25% Wolfworthy, 75% current food
🗓 Days 5-8 → 50% Wolfworthy, 50% current food
🗓 Days 9-13 → 75% Wolfworthy, 25% current food
🗓 Day 14 → 100% Wolfworthy
Some dogs may need a slower transition, particularly if they have a sensitive stomach.
Monitor your dog’s appetite, stools, energy levels, skin and general wellbeing.
Understanding what you are feeding builds confidence
Choosing dog food does not need to come down to one fashionable ingredient or marketing claim.
Start by checking that the food is complete. Read the composition carefully, understand what the headline percentages include and consider the overall nutritional balance. Most importantly, choose a food that is suitable for your individual dog.
At Wolfworthy, we clearly publish the composition and analytical constituents of each recipe so owners can see what goes into their dog’s bowl.
Explore Wolfworthy’s ingredients and compare our recipes:
FAQs
Is grain-free dog food better for dogs?
Not automatically. Many dogs can eat grains without a problem, while others may do well on a grain-free recipe. The more important considerations are whether the food is complete, nutritionally balanced and suitable for your individual dog.
Does grain-free mean carbohydrate-free?
No. Grain-free foods usually use other carbohydrate sources instead of cereals.
What does complete dog food mean?
Complete dog food is formulated to provide the essential nutrients your dog needs daily. Complementary foods need to be combined with other foods to create a balanced diet.
What does 80% animal ingredients mean?
It means that 80% of the ingredients added to the recipe are from named animal sources. Depending on the recipe, this can include fresh and dehydrated meat or fish, organ meat, animal fats, oils, eggs and gravy. It does not mean the finished food contains 80% protein.
Are ingredients listed in order on dog food labels?
Yes. Ingredients are generally listed in descending order by weight at the point they are added to the recipe. Fresh ingredients naturally contain moisture, so their position should be considered alongside dehydrated ingredients and the overall formulation.
How can I tell whether a dog food is suitable for puppies?
Check the label or product information for its stated life stage. A food described as suitable for all life stages should be formulated to provide the nutrition required for growth as well as adult maintenance. Portion sizes must still be adjusted for the puppy’s age and expected adult size. Find out more here.
How quickly should I change my dog’s food?
For most dogs, changing gradually over approximately seven days helps their digestive system adjust. Sensitive dogs may benefit from a slower transition.
What should I do if I think my dog has a food allergy?
Speak to your vet before removing ingredients or starting a restricted diet. Properly investigating a suspected food allergy usually requires a structured elimination diet rather than changing foods repeatedly.
Where can I see Wolfworthy’s full ingredient lists?
The full composition and analytical constituents for Wolfworthy Original, Oily Fish and Countryside are available on the Wolfworthy ingredients page.
This blog provides general information and is not a substitute for veterinary advice. Always speak to your vet if your dog has a diagnosed health condition, develops concerning symptoms or requires an individually tailored diet.
📩 Need help? Email us any time at support@wolfworthy.co.uk and we’ll happily assist.
