Thread: Dry food brands

Do you all feed maine coon 31?
Ive been looking at iams/royal canin/purina/hills science
but really confused on how to seperate them in which is the best food and why,
at the moment mine are eating the dry that our vet gave us but when this is nearly finished i want to get the 10kg bags but not sure if to stay on the vet food or move to any of the above what is the main ingredient i am to look for