No. My body produces virtually no insulin. A C-Peptide test was performed in the past 10 years, when I was receiving immunomodulatory treatment, and showed no traceable C-Peptide in my body. Hence, my body is either producing none to extremely low levels of insulin.

By the time you are diagnosed with type 1 diabetes, around 90% or so of the islet cells (insulin producing cells) are eradicated, supposedly.