As mussels are a natural sea-water filter, they retain a huge number of potent nutrients and minerals. Green-lipped mussels are a rich source of glucosamine and chondroitin, vitamins C and E, antioxidants, and minerals such copper, zinc, and selenium, all of which are vital to your pet’s joint health. These Green Lipped Mussels are ground into small pieces for easy meal-topping. Recommended feeding: 1/3 tsp for every 20lb body weight. * 1 oz dehydrated weight = about 4.3 oz fresh weight. * 3 oz dehydrated weight = about 13 oz fresh weight. * 6 oz dehydrated weight = about 26 oz fresh weight These were dehydrated raw in low heat.