Lactalbumin, also known as alpha-lactalbumin, is a protein found in milk. It is commonly used as a food supplement due to its high nutritional value and easy digestibility. There are several synonyms for lactalbumin that are commonly used in scientific literature, including alpha-LA, lactalb, and lactoglobulin B. Other synonyms include lactoglobulin alpha, alpha-lactoglobulin, and soluble alpha-lactalbumin. Despite the variety of names used, these terms are all referring to the same protein found in milk. Lactalbumin is particularly rich in essential amino acids, making it an important component of infant formula and a popular supplement for athletes and bodybuilders.