Thank you for the links and information. Re the item on nutrition, I too did not expect much as slots in programmes are usually too short to be meaningful. The subject did take me by surprise though and was informative. Unfortunately it left the concerned pet owner in a quandary. They told us to give variety to the dog then said that changes in food should be done gradually - more guidance would have been useful. IIRC they mentioned mixing wet and dry food as being useful for meeting mineral requirements. I sometimes read of people doing this so wonder if it is becoming a trend. The thing that they failed to mention is that one solution is to give a supplement.
The outcome of the item on dental hygiene was predictable but useful and might hopefully encourage pet owners to brush their dog's teeth. Bones were not entered into the option list, maybe because they are not recommending by veterinary associations. Many people swear by them to clean their pet's teeth. However, the vet pointed out that only brushing will clean the plaque at, and under the teeth/gum margin.