At least when it comes to Walmart and canned dog food. Since the "1 can of low-carb wet food and a free feeding bowl of low-carb crunchies" plan is working so well for my cats, I see no reason it wouldn't work for dogs. With sister-in-law's dog being 20lbs over weight, I wanted to find a quick solution.
Too bad I have not yet found the canine equivalent of the relatively inexpensive grain-free Fancy Feast canned foods listed on FelineDiabetes.com. I checked dog food label after dog food label and found ingredients like wheat gluten, corn, corn gluten, rice, barely, potatoes, and lots of other useless goop. It didn't matter if it was a cheap store brand or the fancy expensive stuff like Newman's Own. They all had a very high percentage of fillers.
The only canned dog food that I found that seemed more on the harmless side was Cesar brand, but even that has yams in it. Plus it is designed for small dogs. Anything bigger than a Shitzu would laugh at you for trying to feed them such a tiny amount, and then bite you in the leg for teasing them.
After the useless Walmart trip, I decided to give Petsmart a call and see if they had any brands they could recommend. I told the girl on the phone that I needed a canned dog food with no wheat, corn, glutens, or other fillers. She recommended Blue Buffalo brand. A quick web check for ingredients showed it is free of wheat gluten, soy, or corn, but does contain ingredients like brown rice, rye, barley and oatmeal!
Sorry underpaid, overworked Petsmart girl, those are still fillers!
Yes, you can order low-carb dog foods online, but the shipping costs are a killer. I will do some more local product checks and read more labels as long as my eyesight holds out. If I find anything good, I will post it here. Even though I have cats, puppies are also cute and also deserve decent, affordable food.