Normal hemoglobin levels for an adult male are between 13.8 and 17.2 grams per deciliter (g/dL). For adult females, a hemoglobin count of between 12.1 and 15.1 g/dL is typically considered normal and ...

Hemoglobin is a key protein found in red blood cells. Its main job is to carry oxygen from your lungs to the rest of your body. When hemoglobin levels drop, the body may not receive enough oxygen to ...

Anemia occurs when you have fewer red blood cells or low hemoglobin, reducing oxygen levels in your blood. Iron deficiency anemia is common and can be treated with dietary changes and supplements.