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Glandular NutritionDietary SupplementMade From Cold-Processed Bovine Glandular TissueMade From Quality IngredientsScience-Backed Quality Since 1969Boost kidney health with kidney glandular supplements. Swanson Kidney Glandular supplement is made only from cold-processed bovine glandular tissue collected at USDA-inspected facilities. This high-quality tissue is desiccated (dried) defatted (when applicable) and powdered at cGMP-certified laboratories in Nebraska.