Veterinarians at Omni welcome the findings of another academic study that further quantifies the health benefits expected on plant-based diets compared to meat-based dog food. 


A new study from Knight et. al (2024), summarised by the lead author here, used survey data from 2,536 guardians feeding conventional meat, raw meat, and plant-based diets for at least one year. 


The researchers examined 7 general indicators of illness and 22 specific health disorders. They found that ‘dogs fed vegan diets had superior health outcomes to those fed conventional meat for all seven general illness indicators studied’.


They also found that the chances of a dog suffering from a specific health disorder were highest for dogs fed conventional meat-based pet food for 11 disorders, highest for dogs fed raw-meat based pet food for 8 disorders, and highest for dogs fed plant-based pet food for only 3 disorders. 


The researchers had already found various health benefits for dogs fed plant-based dog food from this survey, which they published in another academic study in 2022. This study further increases the rigour and reliability of their conclusions, by controlling for medically relevant demographic features that may have influenced dog health outcomes. 


Plant-based vs meat-based diets for dogs: the results


This study found a ‘clear and consistent trend’ that dogs on vegan diets usually have ‘substantial and statistically significant decreases in risks of 7 general indicators of illness’. Dogs on plant-based diets were sometimes more than 50% less likely to have a general indicator of illness – such as having a health disorder, or regularly visiting the vet – compared to dogs on meat-based diets. 


Plant-based diets were also associated with an over 50% risk reduction for 6 specific health disorders compared to dogs fed conventional meat. This meant dogs on plant-based diets were significantly less likely to have body weight problems, musculoskeletal issues, gastrointestinal issues, swollen anal glands, and dental/oral problems. 


In contrast, no health disorder was consistently more prevalent in dogs fed vegan diets.


On top of this, based on this research, dog’s fed on a plant-based diet such as Omni’s have:


  • A 21% reduced risk of having multiple veterinary visits per year compared to a conventional meat-based diet.
  • A 33% risk reduction of being considered unwell by their vet compared to a conventional meat-based diet, and a 28% risk reduction compared to a raw-meat based diet. 
  • A significantly reduced likelihood to be on medication compared to dogs fed a meat-based diet. 

What It Means 


These findings make the health benefits of a plant-based diet like Omni even clearer. They’re particularly significant because they not only include the views of over 2,500 guardians, but also more objective and clinical data such as frequency of visits to the vet, and vet opinions of each dog’s health


Like the authors of this paper, Vets at OMNI recognise that feeding raw meat diets can compromise health outcomes due to the risk of contamination with pathogens and nutritional deficiencies. Indeed, the authors of this study note that, because guardians who feed raw meat are less likely to visit the vet, the true health status of dogs fed raw meat is likely to be significantly worse than this study suggests. 


This research joins a strong, growing, and diverse group of academic studies demonstrating better health outcomes for dogs fed plant-based diets compared to meat-based diets. These include multiple clinical studies and large survey-based studies, as well as one study demonstrating health benefits specifically on the Omni diet. 


Omni Co-Founder and Chief Veterinarian Dr Guy Sandelowsky said: “At Omni, we’ve always believed in the power of novel proteins to improve the health and happiness of our dogs. It’s always validating to see this being affirmed by yet another academic study. As a vet, I’m particularly pleased to see this study using clinical data such as reported veterinary assessments in this research, which makes the study’s conclusions even more credible.”


To learn more about Omni’s range of health-first products, including nutritionally complete dry and wet food and targeted, soft-chew health supplements, browse our products here or get in touch with one of our vets for personalised advice. 



Graphic Credit: Andrew Knight/MAD Ideas, 2024

FAQs

But aren’t dog’s carnivores?

Dogs are in fact nutritional omnivores as demonstrated by a robust scientific study published in the reputable journal Nature (1,2) in which it was shown that they have 30 copies of the AMY2B gene responsible for digesting plant-based foods.

They have also evolved relatively long intestines (21) (almost as long as humans) and relatively flat surfaces on their molars (31, 22) which they use for digesting and chewing a whole range of foods.

The common misconception that dogs are carnivores probably arises from the fact that they are classified in the order Carnivora but so are plenty of other species like bears, skunks, racoons who are omnivores and even the giant panda who thrives on a plant-based diet (20).

Is plant protein digestible to dogs?

Absolutely yes, studies which have looked at how much protein dogs can absorb from plant-based and fungi-based foods like soya and yeast demonstrated over 75% digestibility which is on par with meat-based foods (23, 24, 34, 35 & 25).

Both these protein sources also contain all 10 essential amino acids (36, 37) that dogs need to thrive.

Isn't there too much fibre in plant-based food?

The average amount of fibre in a commercial dog food diet is between 2-4%. omni’s plant-powered recipe has a fibre content of 3% which is on par with meat- based diets.

In our survey with over 200 dog owners, 100% reported that their dog’s stool consistency was either ‘normal’ or ‘perfect’ and there were no reports of any digestive upsets (data on file).

Can I mix omni with other meat-based diets?

We are proud that our recipes are nutritionally complete and so include everything your dog needs to thrive. This means omni can be fed as a sole ration. We also fully support a 'flexitarian approach' like meat free lunches or using omni as a mixer.

Every little helps to bring some of the health and environmental benefits of plant-power to meal times. Mixing omni with meat/fish will help to add variety into your dog’s diet whilst adding in healthy ingredients with a relatively low carbon footprint.

Can plant-based food provide the essential fatty acids dogs need?

All the essential fats and oils that dogs need, including omegas 3 and 6 are found in a variety of both meat and plant-based foods (31, 28).

omni’s recipe is rich in plant-based sources of these nutrients so your dog will get all the essentials they need.

I hear a lot about feeding raw meat, isn’t that better?

Feeding raw meat to dogs has become a very popular trend in recent years, but most vets will warn against this practise. This is because the cooking process is vital to help kill off dangerous bacteria like E coli, Salmonella and Campylobacter (9) that have necessitated several food recalls from the market and caused serious illness and even death in both dogs and their owners (40, 41, & 42).

There are also several worms and parasites that are only killed off when raw meat is cooked. Dogs are dogs, not wolves and thanks to their domestication over thousands of years, thankfully don’t need to hunt to get their grub nor do they need to eat raw meat, it's just not worth the risk.

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