My dog is almost 6 years old and has been on a raw food diet since I got her at 11 weeks old. She is healthy, energetic and loves her food. I get it premade from a supplier in my area. I became convinced that this is the best diet for her and my previous dog (who died of leptospirosis). I did a lot of reading and the best resource for me was ketopet sanctuary. Very interesting work they have and are doing.
Vets almost always warn against raw feeding but the argument is that commercial dog food is specially formulated to meet all dogs needs. I find this lacking insight and just plain wrong. My new vet is supportive but is still stuck in the but dogs need their teeth brushed and I should feed her some crappy carb laden chew product. I just ignore that kind of advice. Her teeth are actually in very good condition.
I think it is worth looking into the raw food diet. In my opinion we have been misled about canine diet in the same way we have for human diet.