I began using NuVet products when my husband and I brought home our (now six-year-old) Golden Retriever. Tracy told us she had been using NuVet products with all her dogs for several years and always started puppies on it when they transitioned to solid food. Both of my dogs - I also have a German Shepherd - are EXTREMELY healthy, have shiny coats and eyes, and my veterinarians tell me they are two of the healthiest dogs in their practice. I have a colleague who has a dog with a seizure disorder that medication would not control ...at least the dog USED to have a seizure disorder. I gave her a bottle of NuVet Plus for her dog and she began giving it to him. Within a month she told me his seizures had disappeared; that was three years ago. To the best of my knowledge, he has not had a seizure since that first month. We both attribute his recovery to NuVet Plus.