Introducing "Immune Support" - Elevate Your Dog's Health Naturally! Give your furry friend the gift of a stronger immune system with our premium powdered functional food topper, Immune Support. Crafted with love and care in the USA, this exceptional product is designed to enhance your dog's overall well-being. Natural Mushroom Power: Immune Support boasts a powerful blend of organic mushroom extracts rich in beta-glucans, carefully selected for their immune-boosting properties. From Turkey Tail to Chaga, Cordyceps to Maitake, Reishi to Shiitake, our formula harnesses the magic of nature's finest to fortify your dog's defenses. Mushroom extracts for dogs can offer various benefits, including: 1.