I am a firm believer in Royal Canin. Shaianne had trouble gastritis and cholitis until I switched her to the Royal Canin Holistic Blend. It was expensive. 30# for anout $35.00
I just recently switched Keegan to Premium Edge manufactored by Diamond. I did have her on Purina One Lamb and Rice due to a tighter financial budget for a couple months. A guy I work with has had 2 mastiffs and his first one had horrible allergies, coat, and joints and he was feeding her Purina One. He found this food and her coat cleared up. Unfortunately she crossed to the bridge after getting hit by a car and he got another mastiff and has had her on P.E since she he got her and she has been doing great and he is very happy with it. He had to give his first dog supplements for her coat and joints and he doesn't have to give this one any at all b/c the food is so rich.
He buys it off a lady that raises show quality labrador retrievers. (When I went to buy the food she was telling me, "this ones father won Westminster in 1995, this one's father is from a well known breeder in Sweden, this one is from Germany." And while I was there her handler came home with one of her black labs she had a van load of labs (6) and had been traveling up and down the east coast showing them and this lady's had been winning!!!) I was thinking "Boy, am I outta my league!!" And she has switched her kennel dogs to Premium Edge. So if its good enough for her dogs its good enough for mine!!!
While Keegan was on Purina One, her coat became dry and brittle, and she had dandruff and was itching alot and shedding like mad. She hasn't really been on this food long enough for it to make a big difference, but even tho she is shedding still b/c of the season, I have noticed her coat is softer and the dandruff is gone. And the amount she is eating is half of what she was eating in Purina One. She was getting 4 to 4 1/2 cups of Purina One and with Premium Edge she only gets 2-2 1/2. At first she was looking at me like "MOOOOOMMMMY! There is no food in der!!! An den, An den" and I was like "Keegan there is no An den!"
Alot of people think if they buy the cheapest food its for the best, but its not if the dog is eating up to 6-8 cups a day and when you buy them a good quality food of the same size they may eat up to 3 cups.
The price difference b/n the P.E and the Royal Canin is I got 40# for $25.00 but her prices are slightly cheaper b/c she is a whole saler and as far as I know the only seller around here.
once again ya get what ya pay for