New study reports diet choice has no impact on dog owners perceptions of their pet’s health

A new study from the University of Liverpool has found that owners' feeding choice for their pet (be it vegan, raw, traditional meat based) does not influence their perception of dietary health effects.

Using data from a previous study, researchers used further analytic techniques, including machine learning, to re-assess certain data points. The original study surveyed several indicators of health, over a 1 year time frame, and analysed the incidence of 22 common canine health disorders. The findings, published in the reputable scientific journal, PloS One, showed that overall, dogs fed on a vegan diet were ‘as healthy’, and in some cases ‘more healthy’ than dogs fed on a conventional meat-based diet.

After re-analysing some of the data points of the original study, researchers found that factors other than diet choice were the most impactful on owner perception of health. This included factors such as dog age, veterinary visits, received medication, owner age, breed size, and owner education. 

From this it can be concluded that the health indicators monitored by the owners feeding a range of diets were not necessarily obscured by their own dietary bias, as some critics had asserted. It also shows that the owners feeding unconventional diets like vegan diets, did not have any bias to choose more positive health outcomes versus owners feeding conventional diets. 


Read the new study here: Variables associated with owner perceptions of the health of their dog: Further analysis of data from a large international survey. Barrett-Jolley R, German AJ (2024) Variables associated with owner perceptions of the health of their dog: Further analysis of data from a large international survey. PLOS ONE 19(5): e0280173. https://doi.org/10.1371/journal.pone.0280173

Read the original study here: Vegan versus meat-based dog food: Guardian-reported indicators of health. Knight A, Huang E, Rai N, Brown H (2022) Vegan versus meat-based dog food: Guardian-reported indicators of health. PLOS ONE 17(4): e0265662. https://doi.org/10.1371/journal.pone.0265662

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.

References

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