best way not to eat the junk is to not have it iin the house, obviously. but i think the best way to go about things is have one free day. dont know about a nutritionist, havent been to one so i dont know whether its worth it or not.
Go the aussies! stosur!!!
and good luck russians: dementieva, safina, kirilenko, sharapova, kuznetsova, bovina, zvonareva, dushevina.
also good luck to: azarenka, lucic, sprem, vakulenko, vaidisova, safarova, ivanovic, groenefeld, mirza, krajicek, kvitkova, larcher de brito, lisicki.