Breakfast. Without a good, healthy breakfast, you wouldn't be able to function properly in the mornings. It also fulfills energy within your body so you feel good all day.
Most people would say dinner or lunch. a good breakfast can get you ready for the day ahead, if you eat a big dinner all that food will just sit and you will end up feeling bloated and unconformable, this is why walking after a big meal is good for your body.
