Blood consists of different types of components. Which hemoglobin is one of them? It is a type of protein that is found in red blood cells. Because of the hemoglobin, the blood seems red. The main job of hemoglobin is to carry oxygen throughout the body. When we talk about diabetes, people who are diagnosed with diabetes need to regularly check their blood sugar levels. … [Read more...] about Hemoglobin A1c (HbA1c) Test: What Level Indicates Diabetes?