I've never had to use Nutri-Cal with any of my Yorkies but my friend's Maltese crashed one day and it was scary. I knew enough to use whatever was on hand so I got the corn syrup and rubbed it on his gums and put a little on his tongue...we rushed him to the vet, he got a shot and he was fine. The vet said I did good
The vet we have now says there is no need to worry about hypoglycemia in a healthy, adult dog and that their sugar level will actualy drop faster with some of those products...he said we should use baby food, that will keep their sugar levels up longer. Even though our boys are both small, they are healthy and I free feed them so they eat when they want...I'm grateful that we've never had to use it.