Doctors often diagnose diabetes without checking how much insulin your pancreas actually produces. That’s a huge mistake — because the C-peptide test reveals exactly that. ✅ What it tells you: How much insulin your body still makes ✅ Why it matters: It determines whether your diabetes is type 1, type 1.5, or type 2 It shapes your entire treatment plan And it sets the right expectations for what happens when you start the Mastering Diabetes Method ❌ Without it, people are often misdiagnosed, over