Host Defense Turkey Tail Powder supports immune response digestive health and gut microbiome balance. Made with mushroom mycelium this supplement helps support immune cell function an active immune response and healthy Gi function. Turkey Tail is one of the most studied mushroom species and is valued for its role in supporting immune health and digestive wellness. This prebiotic formula also helps nourish beneficial microflora in the gut microbiome. Suggested use is one half teaspoon one to three times daily with food or on an empty stomach or as directed by a healthcare advisor. Host Defense products contain no fillers and are third party tested for quality and safety. Made by Fungi Perfecti a family owned company founded in 1980 by Paul Stamets this product is grown in Washington State using cultivated mushroom mycelium and fruit bodies.