Type 1 diabetes means which of the following?

• A. The pancreas no longer produces insulin
• B. The pancreas continues to produce insulin but not properly used
• C. It is caused by allergies
• D. It is unrelated to insulin

Answer: (A)

Type 1 diabetes is characterized by autoimmune destruction of pancreatic beta cells, leading to little or no insulin production. Insulin allows glucose to enter body cells; without it, glucose accumulates in the blood and cells lack fuel. Because insulin production is essentially gone, people with Type 1 rely on insulin therapy to control blood sugar. This distinguishes it from Type 2 diabetes, where the body still makes insulin but either doesn’t use it well (insulin resistance) or doesn’t make enough, rather than having no production. The other statements—caused by allergies and being unrelated to insulin—are not correct.