My Lab has been on Purina One Lamb and Rice for the last 4 years of
her life. She has performed fantastic for me. I have 2 reservations. 1
is her stool is somewhat soft and 2 her teeth get excessive tartar. I
started to wheen her to Nutro Natural Choice lamb and rice Dental Care
and her stool is stiffer and looks more healthy and It actually seems
to be helping her teeth, which I may add is the main reason I'm
looking to switch. I metioned this to my vet last visit with my new
pup(on Nutro pup) and he said nothing good about Nutro and pushed the
Purina and Eukanuba. He sells Iams and still he recomended the
Eukanuba mostly for the teeth.
I have her on a 50-50 mix of purina one and the nutro dental care
right now.
Should I stay this way?
What nutrients should I be looking for in a food and why?
I want to make and educated evaluation of the foods but having a hard
time getting an unbias opion.

"bob" wrote in message
...
My Lab has been on Purina One Lamb and Rice for the last 4 years of
her life. She has performed fantastic for me. I have 2 reservations. 1
is her stool is somewhat soft and 2 her teeth get excessive tartar. I
started to wheen her to Nutro Natural Choice lamb and rice Dental Care
and her stool is stiffer and looks more healthy and It actually seems
to be helping her teeth, which I may add is the main reason I'm
looking to switch. I metioned this to my vet last visit with my new
pup(on Nutro pup) and he said nothing good about Nutro and pushed the
Purina and Eukanuba. He sells Iams and still he recomended the
Eukanuba mostly for the teeth.
I have her on a 50-50 mix of purina one and the nutro dental care
right now.
Should I stay this way?
What nutrients should I be looking for in a food and why?
I want to make and educated evaluation of the foods but having a hard
time getting an unbias opion.

My guess is he is reacting to Nutro's common problem of having excessive
levels of calcium and phosphorus which in an middle age to older dog is a
health risk. Nutro Natural Choice contains 1.54% calcium and 1.38%
phosphorus on a dry matter basis. Making them one of the highest in the
premium world. Maximum calcium for an adult dog is 1.0% and maximum
phosphorus for an adult dog is 0.9%. For an older dog the maximum phosphorus
level drops to 0.75%. (Small Animal Clinical Nutrition IV Edition)