I've tried several. Most of them have some kind of added starch (insignificant to BG) and some form of flavour enhancer (monosodiumglutamate usually). That doesn't agree with me. The best/nicest/least mucked about with are the Posh Pork Scratchings, just pork and Anglesey sea salt. Cheapest source so far Amazon. Careful, cos they can be very expensive, so shop around!