per se, the fact of drinking 9 glasses of milk is not bad.... it is good, milk protein ranks among the best for the absortion values.... when you say it is not good for cutting.... actually , it is not recomended when you want to get to exteme low values in bf%, bodybuilding competition levels of 3-4%... but as for the rest you can and you will have your 6-packs in sight... milk is very good and if it is skimmed then much better... calcium, and they come enriched with a bunch of other minerals and vitamins.... the only thing is that you may get bored to death after a while... in the past bodybuilders lived on tuna, eggs and milk... tons of them....and I mean guys like Arnold, D. Draper, F. Zane, etc.