Raw Food for Dogs and Cats — https://www.topqualitydogfood.com/ (This is an excellent source if you feed your dog or cat a raw diet. They are in the Maryland area, but deliver to quite a few places along the East Coast. Just tell them Audrey sent you! If you would like to learn more about feeding a raw diet to your pets, just contact me!)
Dr. Becker, an integrative wellness veterinarian, discusses "why a species appropriate diet" is good for your pets:
Minerals are just as important for your pets, whether you have dogs, cats or horses. Here is a good source for those minerals. If you don't want to ship directly from them, ask them if there is a distributor nearby.
Another company that I am loving is the Redmond company out of Utah. I use their loose salt and rock salt for my horse, and I also use their Real Salt for myself.
For the farmer — both for animal and the soil: https://www.redmondagriculture.com/
For the horses: https://www.redmondequine.com/redmond-rock/