The normal range of albumin is between 35-51g/l. Generally to supplement albumin is less than 30 g/l. If the albumin is a little low, you need to strengthen nutrition, supplement energy or eat more egg whites, protein powder, you can supplement albumin. If it is lower than 20g/l, you may have to give supplemental human albumin, you have to give a human albumin injection to supplement protein. We also need to investigate what causes and diseases cause low albumin, whether it is malnutrition, liver disease or other diseases that cause low albumin. In addition to treating the primary disease, supplemental albumin should be given to enhance energy and give symptomatic treatment.