毛知道 is a pet food information and comparison platform created by pet owners to help other caregivers make informed choices. Using publicly available pet food registration data from Taiwan’s Ministry of Agriculture, it organizes information on more than 36,000 products, including ingredients, origins, and manufacturers. The site covers food for dogs, cats, and other animals, and lets users search products, compare brands, and browse by needs such as digestive, joint, urinary, weight, allergy, and life-stage considerations.

Its matching tools help caregivers narrow down options based on a pet’s circumstances, while product listings present registration and ingredient details for easier checking. 毛知道 also publishes educational articles about pet food, nutrition, and feeding questions, alongside caregiver reviews and product submissions. The platform says its information is updated when government registration data changes, helping users check current details before buying.

It welcomes feedback, correction requests, collaboration inquiries, and product information from brands. Overall, 毛知道 aims to make pet food research clearer and less dependent on scattered online discussions