A recent study conducted by PIF member Boil and Broth, in collaboration with Biome4Pets and Aberystwyth University, has revealed bone broth’s potential as a powerful prebiotic food for dogs. Over a 4-week period, the study demonstrated remarkable improvements in gut microbiome diversity, highlighting bone broth’s ability to foster beneficial bacteria and reduce harmful bacterial populations.
The study, which involved 33 canine participants, found that Boil and Broth’s bone broth supplementation significantly increased levels of Bifidobacterium, a key beneficial bacteria, by an astounding 1562.86%. Known for its anti-inflammatory and immune-supporting properties, Bifidobacterium is crucial for maintaining a resilient and healthy gut. At the same time, bone broth contributed to a 96.97% reduction in Helicobacter—a potentially harmful bacteria linked to gut inflammation—and an 87.1% decrease in Clostridium, which is associated with leaky gut syndrome.
“Bone broth has long been praised for its nutritional benefits, but our research underscores its role as a prebiotic food that actively supports gut health,” said Rachel Down, Founder and Managing Director of Boil and Broth. “By enhancing beneficial bacteria and reducing inflammation-causing bacteria, bone broth helps create an optimal environment for digestion and overall wellness.”
Prebiotics are substances that stimulate the growth and activity of beneficial gut bacteria, improving microbiome balance and digestive health. In the study, dogs fed bone broth as part of their regular diets exhibited improved gut ecosystem stability, with the most notable effects seen in those on high-fibre (dietary fibre from vegetables) and raw diets.
Participating dog owners reported visible benefits, including improved digestion, firmer stools, shinier coats, and increased vitality. These findings suggest that bone broth supplementation not only supports gut health but also has far-reaching benefits for overall canine well-being.
While the study has not undergone peer review, it was conducted in collaboration with recognised experts, including Anna Webb, a leading authority on canine nutrition. The full findings will be incorporated into a longer-term follow-up to further evaluate bone broth’s role in gut health.
To read the full study, click here




