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March 2026

5 Things to Know About Your Dog's Diet

Health & Nutrition

We’ve partnered with Cobber to break down what really matters in your dog’s nutrition over time.

Most dog owners already know that their dog’s food needs to change as they age. What’s less obvious is exactly why – and just how much of a difference the right formulation can make.

As dogs move through different life stages, their bodies change: how they use protein, how they burn energy and how efficiently they digest food.

Understanding these shifts helps explain why small differences in formulation can have a big impact over time.

1. Protein matters more as dogs age – not less

Something that many dog owners don’t realise is that dogs start losing lean muscle well before they look or act old – and often while their daily routine looks exactly the same. Same routine, same walks, but with less muscle. This means your dog tires faster, gains weight more easily and feels it before you notice it.

Does that sound familiar? It’s the same reason active adults can feel weaker over time when protein intake slips. Movement helps, but it doesn't preserve muscle on its own. This is why choosing a high-protein dog food can be especially important as dogs move into adulthood and beyond.

Cobber's adult formulas are 25% protein (higher than many mainstream options) to support muscle maintenance.

2. Fat isn’t the problem, but a mismatch is

While you’ll catch human marathon runners carb-loading on pasta the night before a big race, dogs fuel themselves differently.

Fat is actually their primary fuel for sustained activity, such as long walks, active weekends, and big days out.

Too little fat in their diet can limit endurance, while too much can lead to excess weight if their activity levels don’t match.

Cobber makes this distinction straightforward. Its Working Dog formula has fat at 18% for sustained output, while Cobber’s standard adult formulas sit at 11% to suit moderate daily activity.

Various sizes available

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3. The scales only tell part of the story

A dog can hit every healthy weight benchmark and still be carrying too much body fat. That extra load can stress their joints and make everyday movement harder, especially in medium- and large-breed dogs.

This is why vets rely on body condition scoring. It looks at fat coverage, waist definition and muscle mass, not just what the scales say. It separates fat gain from muscle loss.

Your vet will typically run through this at routine check-ups, so it's worth asking about next time you're in.

Knowing this leads to better feeding decisions, particularly when choosing a weight-control dog food designed to preserve muscle while managing calories.

Cobber Adult Healthy Weight Dry Dog Food is a weight management dog food that has 25% protein to support lean muscle, reduces fat content to 8% to manage calories, and keeps fibre at 3% so your dog feels satisfied after dinnertime!

4. Age changes how dogs use food, not just how much they need

Senior dogs’ bodies are less efficient at processing nutrients. Their joints feel the years, and their minds become less sharp.

They still need quality protein to stay strong, but extra joint and cognitive support can make their day-to-day life far more comfortable as they age.

For example, glucosamine and chondroitin are widely used for joint support, and fish oil supports cognitive health in older dogs.

Cobber Adult 7+ Senior Dry Dog Food keeps protein at 25%, reduces fat to 9% – since most senior dogs become less active over time – and includes both joint and cognitive support, which helps their comfort, mobility and quality of life.

5. If digestion isn’t working, the diet isn’t either

It’s easy to focus on what’s in your dog’s food. But just as important is whether their body can actually use it – which is where gut health dog food can play a role.

When gut health is compromised, protein, fats and nutrients aren’t absorbed efficiently. That’s often when you’ll notice things like low energy, dull coats, skin issues or inconsistent stools. Not because the food is wrong, but because the body isn’t getting what it needs from it.

Support their gut health, and everything else tends to fall into place. Better digestion means better nutrient absorption, which often shows up as steadier energy, healthier skin and coat, and more reliable stools.

All Cobber formulas include postbiotics – compounds that support the gut microbiome and improve digestive balance. They’re useful for dogs with sensitive stomachs and older dogs who don’t digest their food as efficiently anymore.

Want to support your dog’s health with food designed for real life? Explore the Cobber range today!

Read more tips on dog nutrition

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