Nutritional Intervention and Gastrointestinal Microbiome and Metabolome in Dogs and Cats

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The pet food industry has launched various types of pet food products (e.g., dry vs. wet, processed vs. raw, and other unconventional diets) to cater to the nutritional needs and preferences of dogs and cats, considering species, life stage, activity level, and size. These diets differ significantly in macronutrient content (i.e., starch, fat, protein, fibre), potentially exerting different effects on gut health. Nutritional intervention by adjusting the macronutrient content and adding dietary supplements can play a vital role in health management and targeted therapy in dogs and cats. However, limited research has been conducted on the effects of varying nutrient levels on the gut health of healthy pets, particularly the gut microbiome and metabolome.