Well, I’m glad I found this thread and the others out there on colonoscopy prep. I’m going in for my first colonoscopy next Friday. I know there are other ways to screen, but I also know that 1) I’m adopted, so I don’t have that family history that most do, and 2) black Americans get colon cancer at a slightly higher rate. Therefore, I figure I’m one of the lucky folks out there with access to a great medical center and great insurance, so I’m just going to suck it up and get screened.
With that said, I had two surgeries last year at the same medical center, so I know a bit of the drill. I had my call with the anesthesia nurse this morning. I called my GI team twice just to nitpick some details. I’ve seen a few sites that say to transition to a softer sort of diet before the procedure. The person I spoke to was “have at it until 3 days before you come in.” I like that because I tend to like heartier sorts of foods. However, I did do a Costco run and got pasta just in case I lose my resolve regarding going crazy this weekend. 
I’m still on MDI at the moment, so like before, they have my dropping my Lantus dose. She didn’t advise me to drop my Humalog dose. I dose based on carbs eaten, insulin on board, and blood sugar. I’ll roll it back just a little bit to be safe in the days before my colonoscopy to see how I handle liquids only and self-induced diarrhea.
I wear a CGM, so I should be fine regarding that. I’m trying to decide if I want to go crazy with juice since I only drink apple juices when my blood sugar is low. I’ll think on that a bit more. I have tons of small bottles of Mott’s apple juices because I’d rather drink that than a glucose shot or chew on a dry glucose tab.
I’ve also stocked up on a few boxes of Jello. Lemon and lime are the two flavors you can have because those don’t have red or purple dyes. I got some coconut water, which I drink but not regularly, for the electrolytes. Colonoscopy prep cleans you out, but that means the good stuff gets wiped to based on what I’ve read. I’ve taken probiotics religiously for years. As a woman with type 1, once I realized, duh, my microbiome was a mess with the higher blood sugars, doubling down on probiotics really helped. I’ll keep that in place.
I already drink a ton of tea during the fall and winter months to ward off colds. I also stocked up on my usual supply of chicken broth, which I use for cooking. Now I’ll just be drinking it.
Now I just have to get the other stuff: a crazy supply of my favorite flavored waters, diaper rash cream or Prep H, and Tucks, and I’ll be good to go!
Anyway, I’ll stalk this and other threads in the run-up to this procedure and will report back if anything weird happens. I’m hoping that nothing weird will happen.