However, I had also received what is undoubtedly medical advice and directions overriding the advice and directions of my DVM (who happens to also be the President of the American Association of Feline Practitioners).
Nobody here is an "expert" on feline diabetes. Unfortunately, that is true of most vets as well. I considered my vet to be an incredible person, extremely professional, and extremely willing to work with me. If that were not the case, she wouldn't still be my vet. But she isn't, nor does she consider herself to be, a Feline Diabetes expert. She told me that she sees, on average, about 3 new FD cases per year. So in her career, she's seen about 100 of them. "We" get more new members than that in a year's time. And the overwhelming majority of the "new cats" that come here aren't under the care of a vet who knows anything close to what my vet knows. Or if they do, then the advice they have given the caregivers who join the board don't reflect that they know much about feline diabetes.
Most cats come here without the benefit of what has been proven over the last decade or more to be the best way to manage feline diabetes:
1 - low carb, not dry food, diet.
2 - proper insulin that has been proven time and again to work best for cats - Lantus, Levemir, or Prozinc
3 - regular home testing which is used to evaluate the appropriate and SAFE dose based on daily data collection.
Your vet gave you a good insulin.
Your vet prescribed a safe and logical dose of Lantus that agrees with the standards published by the AAHA guidelines.
Even though Purina DM is a good choice of food, as it is low-carb, as you already realize, you can use less expensive brands that are just as low-carb, and just as high quality.
In other words, your vet seems to be one of the "good ones", and you should consider yourself very fortunate.
Your vet is completely wrong about the meter, and telling you that a human meter isn't good enough or accurate enough to manage the condition. But two out of three isn't bad. ;-)
I read the line I quoted above, and went back and re-read your other thread, the one you started when you first posted here. I don't see the "medical advice and directions overriding your vet's advice or directions, though. What is it that you felt was troubling?
I am not sure what exactly the "President of the American Association of Feline Practitioners" means, or how one becomes that. I'm sure it means he's pretty special. But it doesn't guarantee that he's an expert on feline diabetes. I'm certainly not an FD "expert", but I am 100% certain that I have spent more hours reading and studying up on feline diabetes over the past two years than your vet, or any other vet has (Unless they are actually experts who specialize in feline diabetes). So have many of the people who post here and offer suggestions when they see "vet advice" that for many reasons is "not quite right".
People here usually don't just dispense advise arbitrarily. If someone suggests that a new caregiver drop the dose from 5u to 1u, as your example stated, I think it's usually accompanied by questions as to how the vet came up with a starting dose of 5u to begin with? A dose of that magnitude is contrary to logic and to published guidelines unless
something else is a factor at the time of diagnosis. Asking if
something else went into that dose advice is normally a part of it. And that is because our number one priority here is safety. A 5u starting dose, absent further complications to make that dose logical is just unsafe and irresponsible advice, whether it comes from a DVM or not. If you see a case like that, what you will usually see after that is that the advice came from a vet who really didn't know what he was doing. In a "best case scenario", the vet comes to realize that, and the next cat(s) they diagnose benefit from what people learn here. We also usually encourage new members to share what "we" tell them with their vets, and for that reason. So that future diabetes cases benefit.
If you do see specific cases where you feel that arbitrary or dangerous advice is given by someone on this board, please bring it to the attention of one or more of the board's moderators. You can report the thread in question, or you can send a PM to one of the moderators. It doesn't happen often, but it does happen. And the wonderful lady, Rebecca, who founded this board and up until recently administrated it, was very adamant that the people who advise here are not "experts" and should follow certain guidelines when giving advice. The current administrator and the moderators feel the same way.