Research indicates
an ideal calcium content should be at or below 1.2 percent, and the phosphorous is best kept at or below 0.9 percent.
Not exact matches
Therefore, you want to buy a food whose
calcium content is no more than 1.5 % (and that is the absolute max), with a more
ideal percentage being 1.0 - 1.1 %.
Blue Buffalo's formula does contain an
ideal amount of
calcium (1.1 %), but this is the minimum
content guaranteed to be in the formula, so in actuality it could be higher.