First ever Colonoscopy next week. I received very limited details about what is okay to eat/drink the 1 or 2 days before a colonoscopy from the nurse who scheduled my appointment. I pick up the "prep" drink this weekend from the pharmacist and hope to get more info then. Info online is conflicting ... one site says to avoid certain items, another site has a different list. I know liquid/soft is okay, but no color dyes ... so, what does that allow?