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Vitamins & Immune SupportAdvanced Immune Support No Wheat*Vet FormulatedNASC Quality Seal - National Animal Supplement CouncilMushroom blend and antioxidants provide advanced immune support.Veterinarian formulated for use in dogs and cats over the age of 12 weeks. Mushrooms naturally contain powerful immune-boosting substances which help support overall health and strengthen the immune system. Our unique mushroom blend along with a combination of antioxidants is extremely beneficial for pets requiring advanced immune support.*No wheat added.