I think there are genetics involved as well in regard to graying of dogs.  My
7 year old yellow Labrador Retriever and 6 year old black Curly Coated
Retriever, have been eating raw for 4 years.  The Curly has the start of some
graying under his muzzle, and the Lab has more white around her face.  Healthwise
they are in excellent shape, and I will never feed any other way.

Thanks to all for responding about my question of having only one kidney and
eating a lot of protein.  I will talk with my physician next Friday on my
annual visit, but I am feeling much more comfortable about continuing eating this
way.  I just feel too good for it to be bad for me.

Susan

> Interestingly, she is still black - no grey.  I've talked w/ other owners
> who feed their dogs raw and they have said that their dogs who were turning
> grey actually reverted to their dark color after going raw.
>