Hugall, Creator of 'HUGBOX' Raw Dog Food, Files Patent for Pet Food Improving Gut Microbiota

Hugall Inc. (HQ: Otsu, Shiga; CEO: Masayo Kajitani), a manufacturer of raw dog food, and Biosys Lab Inc. (HQ: Toyoake, Aichi; located within Fujita Health University) have announced the filing of a patent for pet food designed to improve gut microbiota using raw animal meat as an active ingredient.

This research focuses on the gut microbiome, which plays a critical role in maintaining the health of pets like dogs and cats. The study found that consuming unheated animal meat reduces the relative abundance of Sutterella bacteria, which is often linked to intestinal immunity and inflammatory bowel diseases.

Hugall has developed its raw dog food brand 'HUGBOX' with the mission of supporting canine health through diet. This patent filing aims to scientifically verify the potential of raw food options and contribute to the sustainable well-being of pets through evidence-based nutrition.

The patent covers pet food primarily made from raw chicken, horse, or lamb meat, including not only muscle tissue but also bones and organs to achieve a natural nutritional balance. In test cases, a significant decrease in Sutterella bacteria was confirmed after consumption. Furthermore, owner evaluations suggested improvements in stool and oral health, as well as a reduction in stress-related behaviors such as excessive scratching, licking, or biting.

The findings of this research are scheduled to be presented at the 27th Regular Meeting of the Japanese Society of Pet Nutrition on July 12, 2026, at the Nippon Veterinary and Life Science University.