A shake is most useful where having a ready, measured meal removes a recurring difficulty. A planned bar is most useful near the time you often reach for an unplanned snack. The regular meal protects the food occasion you want to keep.
For example, a person who enjoys breakfast but struggles to organize lunch may benefit from a lunch shake. Someone whose strongest craving happens while watching television may find an evening snack plan more relevant than an afternoon one.
If you cannot see how the recommendation connects to your answers, tell us which part does not fit. We can help you review it. We will not infer your answers or your reason for craving from your age alone.