A vegetarian diet for my pet?

A vegetarian diet for my pet?

Vegetarian and vegan diets are edging towards the mainstream in the UK nowadays, and many pet owners are starting to ask whether the same could be replicated for their pets. But is it ethical to give a vegetarian diet to a dog or a cat? And, are there any risks associated with doing so?


As a vegetarian myself I’m fully aware of evidence appearing about the links between meat consumption and degenerative health conditions, concern for farm animal welfare and environmental degradation. Thus it makes sense that consumers have concerns about the adverse impacts of traditional meat-based diets.


Yes, it is possible for companion animals to ‘survive’, on nutritionally complete and reasonably balanced vegetarian diets, but I believe it is important to keep in mind that there has not been enough studies, and thus evidence, at this point to compare longevity and disease occurrence in pets who've been fed meat versus pets on complete vegetarian diets.


Regardless of dietary choice, consumers should be encouraged to check labels, and to ask manufacturers what steps they take and what evidence they can provide, to ensure nutritional balance of their pets diets. It must be noted that all animals are different, similar to humans, it is important to recognise that different pets have different nutritional needs.


From an evolutionary perspective both the domestic cat (Felis catus) and the domestic dog (Canis lupus familiaris, Canis familiaris) belong to the order of Carnivora. Their ancestral counterparts subsisted primarily on captured prey animals, which is why they have a range of evolutionary adaptations designed to facilitate capture, apprehension, mastication, digestion and absorption of animal tissues.


Dogs were domesticated from wolves. These ancestral dogs were partially dependent on human food scraps. Compared to wolves, dogs have evolved a superior ability to metabolize carbohydrates (even though carbohydrates are not an essential part of their diet), which led to the current discussion about whether dogs are really carnivores or omnivores. On the other hand, cats are not able to thrive on an omnivorous diet because of their lack of genetic, biochemical and behavioural adaptations. Their diet is similar to the diet of wild cats, consequently categorising them as carnivores. 


For this reason, vegetarian diets are simpler for dogs than for cats, although neither one is something to be taken lightly. The risks can be high and it’s highly recommended to take expert advice.


If you are considering a vegetarian diet for your pet, I advise you:

  • Consult with a veterinary nutritionist who can analyse your commercial or homemade vegetarian pet diet and make recommendations.
  • Schedule more frequent wellness examinations, including a full blood analysis at least twice a year.
  • Be cautious with total protein intake, imbalance of the certain amino acids (such as taurine and L-carnitine which are found essentially in meat products) as well as deficiency in vitamins and minerals (i.e. B vitamins, calcium, phosphorus, and iron).


In my personal opinion dogs and cats are not meant to be vegetarian because I believe their bodies aren’t equipped in this way. After many years of veterinary nutrition study and more than 10 years of dog breeding, I believe that the best diet is meat based, fresh food. Each pet is unique, and there isn’t a magical formula that ‘fits all’, but this diet is  a good start. My personal dogs are Spaniels, they are fed with BARF, a diet that consists in meat, offal, bones, and (also very important) vegetables. I always try to buy animal by-products that come from extensive farming. To compliment and in order to attend to each of my dogs specific needs I use AniForte products. These include Salmon OilCod Liver OilPremium Feed OilCoconut OilGreen Lipped Mussel and Taurine! These products have a huge importance for their nutritional balance.


I hope this has been helpful regardless of what diet you choose for your pet.


Take Care,


Filipa Santiago


One thought on “A vegetarian diet for my pet?

  1. avatar Bev Crossen says:

    I totally agree dogs are meat eaters and should not be fed vegan or vegetarian diets

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