Study Finds Some UK Plant-Based Dog Foods Provide Similar Nutrients to Meat-Based Diets
Researchers say properly formulated vegan dog foods can be a 'healthy and viable' alternative, but call for long-term feeding studies
A new analysis of commercially available dog foods in the United Kingdom found that plant-based options can provide nutrient profiles similar to meat-based diets when they are properly formulated, researchers said.
The study, led by Rebecca Brociek at the University of Nottingham's School of Veterinary Medicine and Science, concluded that "plant-based diets, when properly formulated, can be a healthy and viable alternative to meat-based options." Brociek said the next step is long-term feeding studies to track health outcomes over time and to further validate nutritional adequacy for canine companions.
Researchers noted that some commercial vegan formulations sold in the UK include ingredients such as sweet potato, carrot flakes and concentrated pea protein, and are designed to meet established nutrient targets. The study compared those formulations with conventional meat-based diets and found comparable levels of key nutrients in the sampled products.
The findings come amid a wider shift in consumer food preferences, with plant-based diets gaining popularity among people and the pet food industry expanding vegetarian and vegan offerings. Proponents say plant-based pet foods may offer environmental benefits in addition to meeting pets' dietary needs when formulations are complete and balanced.
Authors emphasized the importance of formulation and quality control. The report said that while nutrient analyses of products are an important first step, they are not a substitute for controlled, long-term feeding trials that measure growth, body condition, biochemical markers and clinical health outcomes in animals consuming such diets over time.
Veterinary nutritionists and regulators usually require that diets marketed for dogs meet established nutrient guidelines and that labelling accurately reflects formulation and nutrient content. The study's authors said owners should consult veterinary professionals before changing a pet's diet and that more research is needed to understand the long-term effects of plant-based feeding on different breeds, life stages and health conditions.
The research adds to a growing body of work examining alternative protein sources and diet types for companion animals, but stops short of recommending a universal switch. It calls for additional controlled studies to assess safety, efficacy and practical outcomes before plant-based diets are widely promoted as equivalent replacements for all dogs.
As pet food manufacturers continue to introduce new products to meet consumer demand, researchers said transparency in ingredient sourcing, nutrient analysis and independent testing will be important in ensuring that marketed plant-based diets are complete and appropriate for the animals they aim to feed.