Vegan Pet Food — Nutritional and Welfare Considerations

As concern grows about the environmental and ethical impacts of meat-based pet foods, interest in plant-based diets for dogs and cats is increasing — raising complex welfare questions.

Key Facts

The global pet food industry uses approximately 20% of all meat produced for human consumption
Dogs are omnivores and can be nutritionally complete on well-formulated plant-based diets
Cats are obligate carnivores requiring specific nutrients found naturally only in animal tissue
Taurine and arachidonic acid must be supplemented in vegan cat food — and synthesis quality matters
A 2022 peer-reviewed study found health outcomes similar or better in dogs on vegan diets

Welfare Considerations

The ethics of vegan pet food are genuinely complex. Dogs can thrive on well-formulated plant-based diets, and given the welfare harms in pet food supply chains, this reduces their contribution to farmed animal suffering. Cats are more difficult — obligate carnivores with specific nutrient requirements that must be synthetically supplemented in vegan formulas. Research on long-term health outcomes in vegan cats is limited. The welfare case for plant-based dog food is stronger than for cats; both require veterinary guidance and high-quality formulations with appropriate supplementation.

What You Can Do

Consider a commercially formulated plant-based diet for dogs with veterinary guidance
Request regular bloodwork to monitor health if transitioning pets to vegan diets
Choose high-quality pet food brands that conduct feeding trials and publish nutritional analysis
For cats, ensure any plant-based food includes synthetic taurine, arachidonic acid, and vitamin A
Reduce overall pet food meat content by choosing insect-based or lab-grown protein options where available