This diet does not allow for bread or potatoes on a regular basis. However, the longer you go without eating these things, the more you will find that you don't miss them. You can make "legal" substitutions - there are recipes for low-carb "breads" and there are low-carb tortillas on the market. You can substitute cauliflower cooked different ways for potatoes. Spaghetti squash is a low-carb option that is great with a some butter and parmesan cheese as an alternative to pasta. Once they are on maintenance, some people may try to eat very small portions of lower-carb, non-refined versions of some of these foods (e.g. - whole-grain bread or whole-wheat pasta). Some people do fine with that, but others find that eating the foods in even limited amounts sets of carb cravings that can lead to binges.