well w/e u say but dere is no certain age limit i eman u cant be 3 to do da diet n it is not harmful its perfectly safe n helps u very much i mean i didt it wen i wuz 14 my friend did it wen she wuz 12 n my other friend did it wen she wuz 13. i mean i wuz tryin to help others bcuz i used to be fat n not im skinny n happy thanx to l a weght loss. n by da way there are practically no kid diets n if dere were dey would probably not work n it will take longer to loose. so i would advise u to look of info b4 u speak