Generally speaking, the proportion of calories a person should consume in three meals a day is about: breakfast accounts for _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _. 30%、40%、30%

A scientific diet should not only include proper and comprehensive nutrients, but also pay attention to the reasonable distribution of calories (prophase: 30%, metaphase: 40%, anaphase: 30%).