👉 Lactoglobulin, also known as albumin in milk, is an intermediate type of immunoglobulins that are produced by mammalian cells during lactation. It plays a crucial role in the immune response to breast milk and can be found in small amounts within the milk itself. Lactoglobulin is not related to a specific disease or condition; instead, it serves as a marker for the presence of certain antibodies in the body that are produced by the mother's immune system during pregnancy.