It depends on the type of tortillas and bread that you're comparing. Wraps do tend to have lower calories than bread and sometimes contain less fibre, but it depends on the size of the tortilla. Many tortillas and breads can also be filled with lots of processed ingredients, so try to find a variety with less processed ingredients such as Dave's Killer bread, Food for Life Ezekial bread and Angelic Bakehouse tortillas. Whether you choose bread or tortillas, ideally it's best to look for 100% whole grain on the label rather than white, enriched or multi-grain to ensure that the grains haven't been stripped of key nutrients like fibre, B vitamins and iron.