Some solid info here. Just one thing I would like to point out; Dogs and their Cousins are OMNIVORES. Animal flesh encourages the growth of any type of Cancer Cell. When my B started to seize at the age of 12, I discovered she had Cancer. She was on Phenobarbital for a while even after the Cancer was removed. Her body had to readjust itself and soon she was seizure free. After her Surgery, I fed her Vegetarian food and she loved her Broccoli and also Carrots. She looked fantastic and at the time people thought she was a much younger Dog. I used PetGuard which I got at Vitacost, she ate everything so it was not a problem to change her diet.
She lived 4 more years but then at the age of 16, she started again with the Seizures. The Cancer had returned and the Vet wanted me to have another Surgery. At the time the disease was starting to kick her butt and I knew she would never survive the Surgery. I gave her incredible Palliative Care and because the Mass was somewhere in her throat she could not eat any solid food. My Mom made her Chicken Soup and she also made her Split Pea Soup, I took her to the Vet every few days for IV nutrition. She would become all peppy when at the Vets and I was waiting for me to tell me she was ready to leave me.
On the last day of her life, she did not put up a fight. She sat quietly on my lap as the Vet started the Sedative. She died as soon as the line with the Sedative was inserted. I had to hold my dead little girl so the Vet could give her the overdose, One of the worst days of my life. I had her through my late 20's to my mid 40's and as we all know the longer we have them the harder it is to lose them.
Ketogenic Diets are an extreme diet for Humans and should be avoided (IMO) for Animals of any species. Please try a Vegetarian Diet as these Dogs eat EVERYTHING except things they know are a danger to them. Milk Chocolate, Raisins, Prunes are things they refuse to eat because they know these are toxic foods,
Good luck, you are being a great B Guardian and anyone who has had one for the Dog's entire life know how stubborn they are, That, and their hilarious Yodels and their devotion to their 'Pack' are what makes this Breed the best. I have rescued about 23 dogs in my lifetime of various Breeds but I have a weakness for the Hounds. They are all very intelligent and affectionate. I paid 750.00 for my B in1998 and she was the ONLY animal I ever paid for,
I take Owner Surrenders as far as Horses are concerned, I also take Owner Surrenders for Dogs, but the Cats have always just shown up! The Cats are always Tiny Tigers and you have to study their body language so you can get to know their 'Secrets'!
Good luck! I am sure you will be able to have your B for a good long time, They are definitely worth the House Destruction in Puppyhood.