Eating healthy doesn't have to be expensive. The CSIRO diet that I'm on is very expensive unfortunately. But generally speaking, informal dieting, or should I say healthy eating, can actually be a lot cheaper than you might think. If we aren't on a diet we might have takeaway several times a week. We might buy chocolate and chips and ice cream and ready made snack foods and sweet biscuits. All of these foods are really expensive in comparison to healthier options. You can spend $30 on fresh fruit and veg to last the week, $20 of meat will probably last you a fortnight (unless you happen to be on the CSIRO diet in which case it might last 2 days!) and then you have your staples in the cupboard which need to be replaced as they're used - pasta, rice, flour, cereal, tinned foods etc. But these things are going to need to be bought whether you're on a diet or not. I personally think that dieting is generally cheaper than not, unless you are on a formal program.