The weight makes no difference....my "pets" are all under 5 lbs and all my breeders are 6 lbs and larger....if you had some tinies....I have 3 itty bitty babies I will not sell....I give them the XSmall Adult, for their tiny little mouths.....when I switched them all over to the Mini Adult from the specific formula for Yorkies, I split it half and half and gradually for several days, just decreased the Yorkie formula, over to the mini adult.....had no issues of any kind, and everyone is happy and healthy and springing around with energy and adventurous excitement, getting into everything! My seniors have slowed down a little, some a lot, but they have always been healthy with no issues whatsoever.......

Dog food adviser is a dentist....he has admitted in writing his recommendations/grading system, relies on what the companies say about their own product!!

What is the formula you would use? I have a 10 month old and a 3 month old. We've had our puppies on the yorkie formula, but is there a better one? And how would you go about trying to make sure the younger one doesn't go for an adult formula since he is just a puppy still or my 10 month going for the puppy food?

I recommend to all my new owners that for the sake of simple, keep them on the puppy formula until they are a year old, then switch over to mini adult. It is very important that youngster is getting all the necessary building blocks that are in the puppy blend....when all these kiddos were young until age 2-3 years old, I fed them all the puppy blend.....that was recommended to me by too many reputable breeders to just ignore, so I did that. When they reached 3 years old, I switched over to the mini adult.... My dogs have always loved the formula with the JR Terrier on it....I have too many dogs to be catering to different blends of the same brand....as long as there are no health issues that would require me to branch off into medical issue specific blends, they all get the Mini Adult that has the JR Terrier on it....then my 16 year old seniors enjoy the canned RC....Poor babies, I think they just get tired of crunching hard kibble on those aging teeth....and of course, I have some with very few teeth left so we try to accomodate them as well.....

My 10 month is around 5 lbs and my 3 month is just under 2 lbs, so would the Royal Canin X-Small puppy food be what I should feed them both, or should I go with the Royal Canin Mini puppy? And is the Yorkshire Terrier breed specific formula bad for them or just not as good as the normal puppy blend?

It isnt bad for them....mine just like the mini puppy blend better.....and it was easier for me to give everyone the same formula than dividing dogs into 3-4 groups and feeding which blend each preferred....they ALL like the mini adult, so that is what I fed them! The two blends you have mentioned I think differ from each other by the size of the kibble. I dont think of any of the blends/formulas as "bad" for them....when they first came out here in the States back in '70's, I dont remember the formulas they offered way back then....seems I remember it was all breed specific dog food....so I was feeding the Yorkshire Terrier blend, and my dogs were doing super on it and they liked it. They have since added many more formulas, with different compositions and ingredients and breed specific blends, as well as age specific compositions. None of their food is bad....just aimed at breed and age requirements. If they like the breed specific formula, go with that.....if you buy a bag and they dont like it, I think PetCo and some others as well, will let you return the bag....if they dont like the breed specific, then the mini puppy formula works great. I always include a bag of the Yorkie puppy when I send a baby home.....that is what they are on when they go to new homes.

Awesome! Thanks for all the information and help! I really appreciate it! Just want my babies to be healthy and enjoy their food!

Is RC. Puppy Yorker food a good choice to use?

Scottie now eats grain-free Orijen kibble (and loves it, has very nice silky hair, and no more itchy dry skin), which is all grain-free and the primary ingredients are from whole-prey.

He used to eat grain-free Acana, which is less rich in protein. Scottie stopped eating it for some reason, I think because it's not very tasty due to the meat being "meat meal". A definition of "meat meal" from dogfoodadvisor.com: "Meat meal is a dried end-product of the cooking process known as rendering. Rendering is a lot like making stew — except that this stew is intentionally over-cooked."

And prior, he ate grain-free Fromm, which also produces high quality dog kibble, but after he got sick (unsure of the actual reason at the time) for a couple weeks, the vet suggested changing the dog food brand.

If you have a pup under 8-12 months of age...you can safely feed the puppy blend until baby is a year old....it does absolutely no harm and the pups benefit greatly from the puppy formula.