My first vet recommended euthanasia...saying she'd be too difficult to regulate, would pee all over the house and would hide from me when it was time for shots. Much less any information about testing.
Then I found this group...and I had a tough time deciding whether to listen to the people here OR do what he had suggested...I was very upset trying to figure it all out and made an appointment with him to sit down and talk about options.
I took him some printed materials from THIS group - he basically told me that I couldn't rely on the internet for reliable information...but he did finally reluctantly agree to give me a prescription for Novalin; told me to go to Walmart and get syringes...only did I learn from this group that I should also buy a BG meter and strips so that I could test - that didn't go well or easily either - but I was determined to try to help Luci.
Fast forward: Three years later.
We've seen several vets along the way...one did finally prescribe Lantus - and saw that I'd been testing at home - he said to keep it up...but also told me to go get the Rx filled; give her 2 units twice a day and come back next week for a fructosamine test.
We all have different experiences with vets. I'm not suggesting for a moment that you withhold information from your vet - but you also cannot rely on them to give you dosing advice that's based on as much knowledge as the folks in this group have! So many cats have been helped to live long and healthy lives AND many have gone into remission!
Your vet can certainly help and support you in other ways - but don't count on them to be a fount of information as far as FD. There is however always an outlier to that impression...some vets somewhere are very supportive, knowledgeable and helpful...but my experience has not been such...
Just my two cents worth