Keep your immune system defense as strong as it can be AHCC immune system support. Maintains peak natural killer cell function. Supports enhanced cytokine production. Promotes optimal T-cell & macrophage activity. Gluten free. AHCC (Active Hexose Correlated Compound), is made from hybridized mushrooms used in traditional Japanese healing, cultured in a liquid medium. It delivers activated hemicelluloses, glyco-proteins, amino acids and oligosaccharides with a unique alpha-1,4 glucan structure. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.) Product of Japan.