Healthy Dog Nutrition: What Your Dog Really Needs

Guest post by Katja Schulz, animal naturopath and canine nutrition consultant

In short: Healthy dog nutrition is feeding that fits this exact dog in both quantity and nutrient ratios, meaning their age, size, activity and health status. What matters is not "lots of meat" but the overall balance. Commercial food, raw feeding (BARF) and home-cooked rations can all work, provided they are calculated correctly and reviewed regularly.

Few factors influence a dog's wellbeing as lastingly as their diet. It is the foundation for a strong immune system, healthy organs, stable joints and a long, active life. In everyday life it is still often underestimated. Yet it is not a luxury, it is the basis of health.

What does balanced dog nutrition mean?

Balanced does not simply mean "lots of meat" or "premium ingredients". It means a dog gets everything their body needs, in the right amount and the right proportions: high-quality protein, healthy fats, good fiber, and the right vitamins and minerals, matched to age, size and activity level.

There is no single perfect diet for all dogs, only the right one for your dog. Two dogs of the same breed and the same weight can have very different energy needs, depending on how much they actually move and how their metabolism works.

How do I notice that the diet is not right?

An unbalanced diet often does not show itself immediately. It works gradually! That is exactly what makes it so insidious. These areas usually react first:

• Gut: A disturbed gut flora can show up as flatulence, soft stool or diarrhea, and over time it weakens the immune defenses. Scooting and anal gland problems can also be linked to stool consistency and thus indirectly to feeding. They can just as well have other causes (parasites, allergies, anatomical reasons) and should be checked by a vet. The tricky part: you only notice the symptoms once they appear, and the gut is probably not the first place you look for the cause.
• Organs: With an unsuitable nutrient composition, the liver and kidneys have to work harder on a permanent basis. That can strain the metabolism over years.
• Joints: In puppies of large breeds, calcium supply is crucial for growth. The main risk here is considered to be an oversupply of calcium, not only a wrong calcium-phosphorus ratio. In adult dogs, every extra kilo of excess weight puts additional strain on the joints.
• Excess weight: Obesity is considered the most common diet-related disorder in dogs. It is regarded as a risk factor for insulin resistance, joint disease and a shortened life expectancy. How strong the link is to individual conditions such as diabetes mellitus in dogs is assessed differently across the research.
• Coat and skin: A dull coat or itching is often a sign of an unsuitable nutrient supply or an already disturbed gut flora. Here too: get it checked first, then adjust the feeding.

A note from the Voicari editorial team: One point on Katja's list concerns us directly. The calorie balance depends on the actual activity level, and in everyday life that is usually estimated. This is exactly where the Voicari device comes in. The wearable records activity and sleep, so you can see how much your dog really moves instead of guessing. It is not a feeding recommendation and it does not replace a veterinary diagnosis. It is the data foundation that lets a consultation like Katja's work with more precision.

How activity and sleep tracking works with Voicari

What should I look for in commercial dog food?

I am a fan of good commercial food. It is easy to fit into everyday life and no big challenge when traveling, which means no diet change is needed on holiday. But this is exactly where quality decides whether it benefits your dog's health.

What I look for on the label:

• Clear declaration: A high share of clearly named meat and organ meats. The term "animal by-products" is legally very broad and can mean anything from high-quality organ meats to low-grade material. So the problem is not the term itself but the lack of traceability.
• No unnecessary additives: No artificial colorings, flavorings or preservatives.
• Ingredients you can identify: Natural recipes with ingredients you can actually place. In my experience, many dogs tolerate them better than heavily processed food with a long additive list. There are hardly any robust comparative studies on this so far, so this is my practical experience, not settled science.
• Mineral sources: I prefer organically bound minerals. How big the difference in bioavailability really is compared to inorganic compounds depends on the specific mineral and is still debated.

A look at the declaration is always worth it. Not every colorful label keeps what it promises.

Is raw feeding (BARF) healthier than commercial food?

BARF and home-cooked rations are largely unprocessed, individually adjustable and close to a dog's original diet. Unlike a complete commercial food, however, they do not automatically provide a complete nutrient supply.

So the answer is: not automatically healthier, but healthier or riskier, depending on how carefully the ration is calculated.

How do I calculate a raw or home-cooked ration correctly?

If the ration is not put together correctly, deficiencies or oversupplies loom, most commonly with calcium, vitamin D and iodine. So the rule is: BARF and home-cooked meals are excellent ways of feeding, provided the ration is calculated individually and reviewed regularly, instead of being assembled by gut feeling or generic online recipes.

"Reviewed regularly" means concretely: whenever weight, activity, life stage or health status changes.

What must I not forget when feeding?

• Keep fresh water available at all times
• Count treats into the calorie balance
• Take diet changes slowly (at least three weeks, longer for sensitive dogs)
• Check weight regularly (feel with your hands, do not just eyeball it)
• Adapt feeding to the life stage (puppy, senior, pregnant female)
• Take intolerances seriously and have them checked
• Get individual advice instead of one-size-fits-all feeding recommendations

My conclusion as a nutrition consultant

For me, the main question is not "BARF or commercial food" but whether the diet truly fits the individual dog. I rely on natural, high-quality ingredients without unnecessary additives, tailored to the age, activity and health situation of each dog.

Whichever path you choose: a thoughtfully calculated and regularly reviewed diet is one of the most valuable investments in a long, active dog life.

Not sure whether your dog's current diet really fits? An individual, free nutrition consultation helps you avoid mistakes before they become a problem.

Request a free nutrition consultation

Frequently asked questions about healthy dog nutrition

How do I tell if my dog is overweight?

The touch test is more reliable than the eye: you should be able to feel the ribs clearly under a thin layer of fat, without having to press. Seen from above, a waist should be visible. If you are unsure, have the Body Condition Score assessed by your vet or a nutrition consultant.

How long should a diet change take?

I plan at least three weeks, longer for sensitive dogs. The pancreas and gut need to adjust to the new food, and even in three weeks that adjustment is not one hundred percent complete. A slow transition, however, clearly reduces the strain on the gut and pancreas. If your dog visibly struggles with the transition, take a step back instead of pushing forward.

Is BARF suitable for every dog?

In principle, BARF can work for most healthy dogs if the ration is calculated. For puppies, pregnant females, and dogs with kidney, liver or pancreatic conditions, the margin for error is much smaller. In these cases the ration should be supervised professionally.

How do I recognize good commercial food on the packaging?

By its traceability: clearly named meat and organ shares instead of umbrella terms, no artificial colorings or flavorings, and the label "complete food" if it is meant to be the main meal. Marketing claims on the front say less than the ingredient list on the back.

Can treats throw a balanced diet off?

Yes, and it happens more often than you would think. As a rule of thumb, treats should not exceed about ten percent of the daily energy intake. Anything beyond that shifts not only the calorie balance but also the nutrient ratios of the actual ration.

Why this post is on the Voicari blog

We are building an emotion wearable for dogs that is meant to make dogs easier to understand. Nutrition is an area where we are not the experts, which is why this post comes from Katja Schulz.

What we can contribute is behavioral data: Voicari recognizes emotions from your dog's vocalizations, combined with heart rate, respiration and activity, and maps them to 24 emotional states across 7 core emotional families. The foundation is more than 1.16 million data points from over 1,228 dogs across 110+ breeds. Important for anyone who flinches at the word microphone: the filtering runs directly on the wearable. Only detected vocalizations leave the device, ambient sound and human speech are discarded on-device.

The Voicari device provides wellness insights, it is not a medical diagnostic device. For health concerns, your vet is always the right person to talk to.

Voicari Series 1.0 is currently available for Early Access pre-order, with shipping starting in September 2026.

Secure Early Access now

You can find all the numbers and the scientific foundation on our research page. Related reading from the blog: how to recognize travel stress in your dog and what really helps with separation anxiety.

Note: This post is for general information and does not replace veterinary advice. If your dog shows signs of illness, weight problems or suspected intolerances, please contact a veterinarian.

About the author: Katja Schulz is an animal naturopath and canine nutrition consultant. www.tierheiltherapie-schulz.de