Hi there, I hope you are well. Maida or refined flour doesn't take time to get digested which means it can raise your blood sugar levels quickly, and eventually you will feel hungry soon, it cannot keep you full for long. However, personally, as a qualified nutritionist and Dietitian, I'd not like to group foods as good or bad but rather healthy, and unhealthy. Yes, maida shouldn't be consumed in a regular basis, and you can consume it once in a week, for any one meal, either lunch or dinner , and not both :) excessive intake is to be avoided as it can lead to weight gain, skin issues, digestive issues at a later stage.