It's great to hear this won't be an issue, as other posts have led me to believe. One less thing to think about as I'm working my way through the thousands of little questions we probably all have or had when we're just learning about the lifestyle.  

I can't say I'm worried about it, I'm just working through all the issues relevant to us that I keep seeing on various forums, blogs, etc, and that was one of them. I wouldn't have given it a second thought if our dog didn't need a specific food that may or may not pose some problems when it comes to getting it. I cleaned up enough dog barf trying to find something she could eat when we rescued her, so this is one of those non-negotiables each of us probably has as we're figuring out how to hit the road for an extended period and emerge from it happy.  

Thank you for your comments. Learning about real-life experience is priceless. 

If you can find the food on Amazon make sure it is on the Canadian Amazon also. In Canada that is the Amazon you will be dealing with. Just FYI.

Since we can take a fair bit over the border I'll just pick it up as needed at PetSmart or a vet's. A bag is only 27lbs (my error, obviously, on the 2lb thing. I was doing ten different things at once and only put 1kg into the conversion instead of 20. Total idiot moment). 

https://www.drsfostersmith.com/pet-meds/foods-and-treats/rx-dog-food/ps/c/9547/31479/31480?cmpid=E-_-D-_-072618-_-C1   This could be another online resource.  We haven't ordered prescription products, but have ordered many other items over the last couple of decades from them and been satisfied.

The biggest problem you may have with ordering online is getting it through Canadian customs.  Assuming that it will *make* it through customs, it could take up to two weeks to get, so keep that in mind if you decide to order.

Since you need prescription food, I'd contact Canadian Customs before crossing to make sure they're not going to have a problem with it.  And -- keep the food in it's original bag...don't dump it in a container, even if that's what you usually do.

Thank you for the link, SnowGypsy. They do have ours, and at a reasonable-ish price.

Good point, LindaH. The Canadian Imports site does say you'll have to prove where the dog food was made, so the original bag will matter. We do usually dump it in an air-tight container (Florida's humidity spoils everything).

Feeling confident this will be relatively easy. Thanks for all the insights. On to the next nagging question..........!