Hi, I supposed you've already tried the fast but want others reading this to know that Type 1 diabetics need insulin even if they're not eating. I'm type 1 and do Water Fasts regularly for 2+ days. When I fast I don't have to take short-acting insulin (meal bolus on a pump, or meal shot if on MDI), but it's CRITICAL to continue taking your basal insulin if you're on a pump, or your long-acting insulin if you're on shots. Otherwise you'll wind up in the ER with acidosis very quickly. Wishing you the best.