I find I spend less money because I am no longer a slave to cravings. I used to have food going bad in the fridge, and would go out and buy a bunch of grocercies anyhow because I simply HAD to have lasagna or french fries or whatever. I also eat out less because I no longer have hypoglycemic episodes while I'm out. I just make sure I eat before I go out.

THe first week was bad, but I definetly spend less now.