Vitamin C. The most popular girl at the vitamin lunch table. The fan favorite, superstar of supplements. Everybody loooooves Vitamin C and can't seem to get enough. We eat it, we drink it, we slather it on our faces.
But do we need to give it to our dogs? The short answer is no.
Dogs actually produce Vitamin C in their bodies through the metabolism of glucose and therefore don't need it from an outside source the way we humans do. (In fact, humans are the rare animal that doesn't produce Vitamin C.) A dog with normal energy levels that is being fed a properly balanced diet will produce sufficient Vitamin C internally.
Now for a slightly longer answer: there is some evidence that dogs with compromised immune systems, those recovering from illness, childbirth, or a surgical procedure, might benefit from a boost of Vitamin C, but this should be done with the help of your vet. Tossing your dog a human-dose Vitamin C gummy is a bad idea and could actually result in urinary stones (aye-yie-yie!), so consult your vet if you think your dog could benefit.
And of course, there are lots of canine-friendly superfoods, naturally rich in vitamin C, that you can feed your dog without hesitation, specifically blueberries, kale, and pumpkin.
So there you have it. Cozy up to Vitamin C all you want, write its name in your notebook, and invite it to all your birthday parties. But don't force that friendship on your dog.