Short answer: yes, as long as the vegan or vegetarian food is complete and balanced. Your dog doesn't necessarily need meat, but it does need the right nutrients. Below, you can read what the science says and what to look out for.
What does a dog actually need?
Your dog doesn't necessarily need "meat". What it needs is protein (or rather: amino acids), fats, vitamins and minerals, in the right proportions. During my training as an integrative nutrition therapist, I learned that FEDIAF, the European industry body, sets out for each life stage how much of every nutrient a complete dog food must contain. Where those nutrients come from makes no difference to the guidelines. A "complete feed" simply has to provide everything your dog needs if it's their only food.
That also means: not every vegan or vegetarian food is good food. Just like with meat-based food, it all depends on the composition. So always choose a food that's labelled as a complete feed, not just as a treat or a complementary feed.
Key nutrients to look out for
| Nutrient | Why it matters | Plant-based source or solution |
|---|---|---|
| Essential amino acids | The building blocks of protein | A combination of pulses such as peas and lentils, grains such as rice and oats, and seeds. |
| Taurine | A crucial link for the heart muscle and muscle function | Produced by the body from other amino acids, topped up with targeted synthetic supplementation.* |
| L-carnitine | Essential for energy metabolism in the heart and muscles | Produced by the body from other amino acids, topped up with targeted synthetic supplementation.* |
| Vitamin B12 | Needed for a healthy nervous system and good circulation | Vitamin B12 is naturally absent from plant-based ingredients, so supplementation is needed here too. |
| Vitamin D3 | Essential for the bones | With a well-formulated diet enriched with vitamin D3, dogs keep these blood levels nicely on track. |
| Omega-3 (EPA/DHA) | Skin, coat, anti-inflammatory | Algae oil |
*Manufacturers offering complete feed in line with the FEDIAF guidelines often add nutrients such as taurine, L-carnitine and vitamin D3 synthetically (non-animal), because the concentration of these specific amino acids can be lower in some plant-based protein sources, or they can be harder to digest. The manufacturer wants to be one hundred per cent sure your dog gets enough of them, without relying entirely on the body's own conversion.
But isn't a dog just a wolf?
No, a dog is no longer a wolf. Although dogs descend from wolves, their digestion has adapted over thousands of years of domestication (living alongside humans). From a nutritional point of view, comparing a modern dog's diet with that of a wild wolf is therefore outdated.
What does the science say?
The largest study to date is by Knight and colleagues. They asked 2,536 dog owners about the health of their dog, which had eaten regular meat-based food, raw meat or plant-based food for at least a year. After adjusting for age, sex, neutering, size and exercise, the results showed:
- Dogs on plant-based food scored better than dogs on regular meat-based food on seven general indicators of illness (such as the number of vet visits and use of medication), mostly with statistical significance: a 14.4% to 51.3% lower risk.
- For six specific conditions, the risk was 50–61% lower, including weight problems and ear, gastrointestinal and dental problems.
- Not a single condition occurred more often in dogs on plant-based food across multiple studies.
- They are more often rated "very healthy" by vets and suffer less from stomach and liver problems.
- No compromise on taste: research shows dogs find their plant-based meals just as tasty as meat-based ones; they dive into the bowl with just as much enthusiasm.
Smaller studies involving blood tests also show that dogs on fully plant-based food stayed healthy, with no deficiencies in taurine or essential amino acids. The study concluded that there is "no overwhelming evidence" of adverse effects, but there are indications of benefits.
The honest caveats
Data over Dogma also means saying what we don't know yet.
- These are mainly surveys. Owners report for themselves, and anyone who deliberately chooses plant-based may see things more positively.
- Compared with raw meat, the results were mixed: dogs on plant-based food, for example, went to the vet more often than dogs on raw meat.
- Intestinal parasites were slightly more common in dogs on plant-based food in the study (3%). The researchers suspect these owners deworm less often, so: keep deworming as advised by your vet.
- New thinking vs outdated legislation. Although the study is very important because of its size, experts often stress that it's a survey (based on the owner's perception) and not a clinical trial under controlled laboratory conditions. While data from researchers such as Andrew Knight show promising prospects for the health and sustainability of plant-based pet food, the sector finds itself caught between two worlds. We're seeing a fundamental clash between a new way of thinking, which approaches dog food purely from nutritional needs and sustainable innovation, and outdated legislation that still leans heavily on traditional, meat-centred frameworks. As long as regulation doesn't catch up with scientific and social reality, it holds back the acceptance, transparency and further development of fully fledged alternatives on the market. That's exactly where we're trying to make a difference with Muppet Meals!
How to make the switch
Take your time: don't change everything in a single day. Your dog's gut needs to get used to the new, plant-based protein sources. Gradually mix the new food in with the old:
Days 1–2: 25% new, 75% old.
Days 3–4: 50% new, 50% old.
Days 5–6: 75% new, 25% old.
Day 7: 100% Muppet Meals-proof!
Be patient for results.
Rome wasn't built in a day, and neither is healthy skin. You'll often see stools settle down within a few weeks. The real improvement in the coat and the itching disappearing usually takes 3 to 6 weeks. Give the body a chance to reset!
Keep an eye on stools, energy, coat and weight, and weigh your dog regularly during the first few months. Every dog is unique. Notice your dog is struggling to adjust? Then take a step back in the mixing schedule. If there are serious symptoms or you're unsure, a check-up at the vet is always a good idea. Get in touch with the vets at VETTS. As a Muppet Meals customer, you even get your first consultation (worth €44.99) completely free!
Puppy, pregnant or unwell? Talk to your vet first.
Frequently asked questions (FAQ)
Is plant-based dog food healthy?
Complete plant-based dog food that meets the FEDIAF guidelines can cover all the nutritional needs of an adult dog.
Won't my dog miss out on protein?
No, if the dog food is formulated to be complete, your dog won't miss out on protein. Dogs need amino acids, and those are also found in plant-based sources such as peas, lentils and grains. Blood tests in dogs on plant-based dog food showed no deficiencies in essential amino acids.
Is plant-based dog food complete and suitable for all dogs?
The brands we've selected were developed by vets and nutritionists. It's a nutritionally complete food for dogs.
If your dog has a genuinely severe allergy, "natural" food often isn't enough, because cross-contamination can happen in the factory. A medical hypoallergenic diet from the vet is then the only option. As a Muppet Meals customer, you get direct access to the vets at VETTS. They know the science behind nutrition and will help you think things through without prejudice.
Can a puppy eat plant-based?
Puppies have different needs. Only choose dog food that is explicitly formulated as complete. Our Healthy Habits by PAWR is a complete everyday dog food with essential nutrients, vitamins and high-quality plant-based protein sources for adult dogs and puppies alike.