Okay, so I used to feed my dog raw- a "frankenprey"/RMB model. He did awful on it. I actually think he became unhealthy. I know it's not the raw itself-- it was how I was feeding the raw. It really scared me off of it for some time; he now eats commercial raw and is doing amazing. When I bought my first batch of grinds from MPC for Mrowmrow, I bought a "grab bag" item, which is something that's cracked, missing a lid, etc. that they sell you for like 1.50. It ended up being a coarse ground beef "super mix". Here's the ingredients: "20% Wisen/Gullet, 20% Short Ribs, 10% Liver & Kidney, 10% Heart, 40% Lean Beef Meat (80% lean)." Pretty good, right? Chip devoured it. He won't eat anything else. I'm running low (and it's starting to look a little...off), so I'm considering ordering him some more. I'm spending about 40$/month on commercial raw for him right now, so I think I can probably feed him MPC raw for around that same price. My question is-- if you feed your dog raw-- do you think I can rotate grinds from different animals and be okay? I am not willing to go back to chunks of whole meat, bones, and organs at this time. I didn't do it well last time, and that was WITH help from a dog forum. Do you think dogs need supplementation like cats? Honestly, it only makes sense to me that they do. I posed these similar questions earlier today on the same dog forum I used to use, but those raw feeders are extremely biased against anything but their exact feeding model, and that's not an attitude I can handle with any long-term patience.