On my vet's recommendation, I give my dogs these Zesty Paws multivitamins.
Much like engine oil threads, the internet is full of discussions about what to and not to feed your pets. I have adopted the simple policy of doing what my veterinarian tells me. Zesty Paws is also a well-reviewed brand and my parents have been giving the dog they refer to as 'your brother' ZP salmon oil chews for ages.
I have a growing Golden Retriever puppy and 7.5-year-old Cavalier King Charles. Even tho they both have pretty different nutritional needs, they both get this vitamin.
I totally understand that their dog food should be balanced and have everything they need. However, the puppy is growing so fast and huge and a Cavalier's heart is always dear. I am glad to spend a bit extra and give them these vitamins.
The dogs love these chews and beg every AM until they've gotten them.
I totally get that we American folks have an irrational love of vitamin supplements.