Assurance For Dog's Food

[ActiveMom]

My family is a dog lover. This is why we are about to engage in a pet food store. For the meantime, we are undertaking researches for dog products to see people's preferences and the quality of food that we need to sell. We actually have to provide the best nutrition for dogs. But, we want to meet quality standards for our products. Anyway, I have some questions about it. How can we prove to dog's parents about a complete assurance of our dog's products? Are there guidelines that we need to follow? Nevertheless, I need to ask expectations of our pet parents about the nutrition of their dogs as I want to apply food safety too.

Again, what are your suggestions and recommendations?