Rx Vitamins Essentials 8 oz/226.80g Powder for Dogs Calcium citrate for bone health Spirulina microscopic algae that supports your dogs immune system and digestive health Defatted desiccated beef liver which is rich in protein and iron Malt dextrin which is a carbohydrate that provides your dog with energy Chicory root a prebiotic that encourages the growth of good bacteria in your dogs digestive system