We've been on the diet for a year. Something I've noticed in the last month - more and more people are checking the ingredients on the packets in the supermarket. Thanks again for all your persistence with the food industry. - by email

Q. Do you have any suggestions about which brands of bread are preservative-free and/or how I could obtain preservative-free bread in the northern suburbs of Sydney? Most of the brands of breads in the supermarket (Cole's and Woolworths) have preservatives in them. 

A. See Failsafe Shopping List, frequently updated as new reports of preservative-free bread come in.