Hello I am completely new to this I found out and started shots yesterday and still need havent started tracking BS i have been reading a lot of stuff on this forum and has been very helpful. I plan to start tracking soon. My question for this group is why you chose prozinc. I was looking at the pricing and it is almost double the cost of vetsulin is there specific reason to go with prozinc. it is what my vet prescribed but i didnt get a chance to talk to him about other options yet. Thank you any help is appreciated.