What certifications does a seller need for the Grocery & Gourmet category?

Apologies if this is a basic question but I can’t find a definite answer anywhere. I want to sell a flavored drink mix, which should be categorized as Grocery & Gourmet Food, as opposed to supplements. I’m looking for manufacturers at the moment, but not sure what certifications they need to have to meet Amazon’s requibments? I know for supplements, they need to be cGMP certified and have a Certificate of Analysis, but this may not be the case for Grocery & Gourmet?

Regardless, I will want to work with a reputable factory but just want to know what to look for in terms of Amazon’s requirements. Thanks!