If you are planning a diet or want to follow a proper routine, you need a healthy meal menu. Planning for a longer period, like a month or more, can be difficult for you if you have a busy routine and a tight budget.
That is why building a healthy meal menu for a week would be more convenient.
At the same time, if you are a full-time worker, a university-going student, or someone who is not good at managing multiple tasks. You already have a lot on your plate; adding meal planning and preparation to the list can make things even harder.