As to RAW.... it is not just feeding raw meat.... there are percentages of offal and also some fruit and veg involved. I have been feeding RAW since 1989.
Simply put I feed 10-15% offal, 10% green tripe, 10% veggies with some fruit and the rest is muscle meat and raw fish
I saw some great charts someone posted on facebook that really explained that in pictures. They had the percentages but also charted what parts are considered organ (secreting organ) and what is considered muscle meat. Apparently is is also important to have liver makeup 5% of the organ meat.