A method for the augmentation of immune function is described. The invention comprises a combination of ß-1,3 (4)-endoglucanohydrolase, ß-1,3 (4)glucan, diatomaceous earth, mineral clay and glucomannan, which is fed to or consumed by mammalian or avian species in amounts sufficient to augment immune function. The invention described may be admixed with feeds or foods, incorporated into pelleted feeds or foods or administered orally to mammalian and avian species.
