Do dogs need supplemental digestive enzymes? Do they help? What do I need to know about them before buying? My Seamus is 13 months and Sonny is 7 years. They both eat Orijen 6 fish kibble. Thanks Debbie

My golden retriever, Roxanne, started gagging uncontrollably. I took her to an emergency vet and they thought she got a bitter poison in her mouth. She hasn't been around it at all and they said her gagging should stop. The gagging did not stop and her frantically eating grass was worrisome so...