Whenever you feed the dog with different kinds of food items, you should always read the label and understand all about dog food and the contents of the dog feed types that are being used in such commercial preparations. You should understand the ingredients while buying foods dogs can eat and also know what to look for.
The main thing is that they must eat fresh food. My dogs adore when I buy them Snacks. I try to buy only wholesome food, but sometimes I spoil them and such food. The other day, I even found their favorite "Pup Peroni" snacks at a discount in Rabato - https://www.rabato.com/us/publix/weekly-ad/QXiA7p
Sometimes they eat vegetables. But most of course they love meat.