Albumin is a type of protein found in the blood, primarily produced by the liver. It plays a crucial role in maintaining the osmotic pressure of blood, which helps keep fluids from leaking out of blood vessels. Additionally, albumin transports various substances, including hormones, vitamins, and drugs, throughout the body. Low levels of albumin can indicate health issues, such as liver disease, kidney problems, or malnutrition. Doctors often measure albumin levels through blood tests to assess a person's overall health and diagnose potential medical conditions. Maintaining proper albumin levels is essential for overall bodily function.