Which statement correctly distinguishes type 1 diabetes from type 2 diabetes?

The correct statement highlights a fundamental difference between type 1 and type 2 diabetes regarding insulin production and utilization. In type 1 diabetes, the body's immune system mistakenly attacks and destroys insulin-producing beta cells in the pancreas, leading to little or no insulin being produced. This lack of insulin necessitates lifelong insulin therapy for individuals to manage their blood glucose levels.

In contrast, type 2 diabetes typically begins with insulin resistance, where the body's cells do not respond effectively to insulin. Over time, the pancreas may still produce insulin, but it is often not sufficient to meet the demands due to this resistance. Therefore, while both types involve issues with insulin, the core distinction lies in type 1 diabetes being characterized by an absence of insulin secretion, requiring external insulin administration, while type 2 diabetes involves impaired utilization of insulin and often begins with the presence of insulin, though in insufficient amounts as the condition progresses.

This understanding is crucial for recognizing how to approach treatment strategies for each type of diabetes, providing essential insights into managing the conditions effectively.