Increased antibody activity

Faster rejection of skin grafts

Accelerated production of various disease-fighting cells.

Protects the linings of the digestive tract, respiratory tract and hollow organs from attack by infectious agents.

Fortifies the cells of the digestive tract, respiratory tract and hollow organs and makes them more resistant to agents that cause respiratory infections, diarrhea and other ills.

Increases the cellular immunity of lung cancer patients who were given very high doses of vitamin A for three weeks.

Counteracts the depression of immune function in surgical patients when a high doses of vitamin A.

Very high doses of the preformed vitamin A can significantly reduce the immune-depressive effects of radiation treatment and cancer chemotherapy.