Just because an ingredient is human-grade doesn’t mean that it’s automatically safe for your pet to eat. What may be considered edible to a human could be dangerous to your dog. Whether or not a food can be consider a human-grade dog food has absolutely no impact on dog food safety, according to AAFCO resources about human-grade dog food. Instead, dog foods have their own set of strict standards and regulations. (excerpt from) https://www.purina.com/dogs/dog-articles/understanding-dog-food/what-is-human-grade-dog-food
