Available in a 2oz pack for starters and a 4oz pack for the extra hungry hippos! Lamb liver is rich in vitamins A, C and B, thiamine, zinc, phosphorus, Iron, manganese, selenium and copper. These are all essential minerals and vitamins which contribute to healthy organs, optimal brain function, efficient metabolism and boosted immunity. Organs in general are the most nutrient dense part of an animal. As such, they are a vital part of your pet&';s health and is required in order to achieve optimal nutritional balance. For pets who are new to organs, please introduce slowly and gradually starting with just a few broken pieces a day. Giving too much of a good thing very suddenly can be too rich for your animal and may result in stool change. If you start to notice darker loose stools, skip feeding for a day or so until both shape and color resumes back to its usual form before feeding again. Best Suited For: All sizes of Dogs!