Lactoferrin Supplementation Benefits

Key Biological Properties of Lactoferrin

Lactoferrin is a whey glycoprotein closely related to transferrin with an iron-binding capacity approximately 300 times higher than transferrin, allowing it to retain iron even in acidic environments (down to pH 3) 1, 3
It functions as an antimicrobial agent by withdrawing iron from pathogens and through specific interactions with bacterial walls, viruses, and parasites 1
Lactoferrin demonstrates immune modulating and anti-inflammatory effects through direct influence on the migration, maturation, and function of various immune cells 1, 4

Lactoferrin may serve as a biomarker for intestinal inflammation, with fecal lactoferrin levels correlating with inflammation observed by endoscopy 5

While lactoferrin receptors have been identified in the small intestine of infants and neonates, suggesting a role in iron absorption, evidence from rodent studies and early human studies with bovine lactoferrin added to infant formula have not consistently shown increases in iron absorption or iron status 1
Bovine lactoferrin may not bind effectively to human lactoferrin receptors, potentially limiting its efficacy compared to human lactoferrin 1