Healthy breakfast. View of a healthy breakfast consisting of a soft-boiled egg and wholemeal bread, with a cup of tea. Eggs are a good source of protein and vitamin A, as well as some of the B-complex vitamins. Wholemeal bread is an excellent source of dietary roughage and fibre, which aid digestion. Tea contains the mild stimulant caffeine, which some people enjoy in the morning to temporarily boost their alertness.