[tokipoki]

Originally Posted by Nancy1999

Yorkies are a toy breed, but that doesn't mean all have to eat foods labeled "toy". These foods are probably smaller sized kibble and even smaller packaging. The word "small breed" on the label, has no specific meaning with the AKC. A variety of dogs would fit in this label, probably dogs under 30 pounds. While a large breed dog, can eat smaller kibble, large kibble is harmful to some small dogs and they will swallow the kibble whole instead of chewing it, and that can cause intestinal distress. However, some small dogs have no problems with larger kibble.

Concerning, Wellness small breed vs. toy breed, they look very similar in the quality of their ingredients, the toy breed has a higher protein content 30 instead of 28, not sure if that's an advantage, 28 is probably good enough, if it's a high quality protein, and both seem to be using good sources of protein, as in no "by products". I believe the toy breed can only be purchased in 2 and 4 pound bags, while the small breed can be purchased in 4 and 12 pound bags.
Toy Breed Complete Health Adult Deboned Chicken, Brown Rice & Peas Recipe

Small Breed Complete Health Adult Turkey & Oatmeal Recipe

Not sure yet if one would be better than the other, I wish it were easier to find calories per cup, that would influence my decision, because my boys are prone to weight gain.

502 and 420 calories/cup respectively for the Wellness formulas you linked. The calorie content is under the "feeding guidelines" tab. I was surprised at how much higher in calories the toy breed formulas are but I guess it's because they have smaller kibbles and more fits into a cup.