[happyface]

I have a 11 monthe old rottie and she has been on a cheap brand of food for the past 8 months and I haven't had any problems with her at all, I did make sure that the food that she eats has 2 meats in it also she weighs about 80lbs, I'm not sure if that the correct weight she should be at, but the vet said that she is just fine and her coat is very silky and black. Can someone please let me know if I may encounter some problems in the future because of the cheap food that she is eating?, I would like to switch her food if it keeps her from having any problem down the road.