Lactoferrin interacts with immune cells through multiple surface receptors (LfR1, intelectin-1, TLR-4, CD14) to produce context-dependent immunomodulation. In the absence of infection, lactoferrin has mild immunostimulatory effects. During infection, it amplifies innate and adaptive responses. In hyperinflammatory states, it reduces excessive cytokine production.

Is lactoferrin safe for autoimmune conditions?

Lactoferrin's immunomodulatory (not simply immunostimulatory) profile makes it potentially safer than pure immune stimulants in autoimmune conditions. Some case reports and small studies suggest benefit in inflammatory bowel disease. Discuss with your rheumatologist or immunologist before use.

Does lactoferrin boost immunity or modulate it?

Both, context-dependently. During infection: boosting (amplifies NK, macrophage, and T cell responses). In hyperinflammatory states: modulating (reduces excessive cytokine production). In healthy resting state: mild stimulation of baseline immune surveillance.