I will tell you how I feed my dogs, it is a combination of raw and common sense. I use raw roo, beef, rabbit, chicken, whatever is available at a reasonable price and is free range. I buy in quantity, freeze and thaw as needed. Dog can tolerate a lot more bacteria in their food than humans, but personally, if I wouldn’t eat it, I don’t feed it. Whenever I peel a vegetable or have any left over from our meals, it goes into a bucket in the freezer. Once a month or so I cook that up with meat stock, I do add rice (I always had akitas and they like rice or pasta, my dogs do not have allergies and I am not fanatical). I freeze that and they get a helping of it every day with their raw meat. If I have cooked meat left over I will feed that instead. Each week one day I substitute a can of sardines or mackerel or fresh fish if we are having it. I also give eggs sometimes raw sometimes cooked. I must admit I do throw in a handful of locally made, grain and chemical free dry food just in case I am missing something vital. Each night they get a raw meaty bone. I have been feeding my dogs like that for years. They all live to a ripe old age and are healthy, no recurrent medical problems. Oh yeah some yoghurt occasionally, actually they really get some of whatever we eat.
I don’t think you have to be fanatical about your dogs diet. If over the course of the week they have good healthy food with some variety they certainly seem to prosper. I know some people who agonise over the dog’s diet. My grandfather’s dogs all lived and worked long lives too, they never had a taste of commercial dog food, they ate mostly raw and whatever was left over from the dinner table. It is the damned processed stuff that is making dogs and humans fat and sickly! imho.