Roasting Veg

Hi,

Im coming of my cleanse today, day 8, cant do anymore, have the energy of a small fly. This is my first cleanse and I will be back. Am still proud of myself for going this long!
I am making my soup tonight and wanted to try the receipe posted a few weeks ago, cant remember whos post it was. It involves roasting the veg, but people are telling me that roasting the veg destroys all the vitamins and minerals and makes the veg very acidic, any any views?