thatitneedstofunctionproperly从句修饰的是哪个it指的又是谁
Well,simplyexpressed,aproperhealthydietisonethatiswell-balanced,or,inotherwords,onethatincludesenoughbutnottoomanyofthekindsoffoodsthatprovidethebodywiththenutrientsthatitneedstofunctionproperly.