Nature’s Organic Calcium is the only 100% certified organic natural calcium. Supporting good bone and joint health, and maintaining healthy teeth is important for your pet.Be sure to give them a formula that will support these key features over the long term. Nature’s Organic Calcum contains naturally-available zinc, magnesium, boron and iron to assist in bone health. Easily absorbed and containing no fillers, dairy or gluten, this is an excellent nutrient-dense supplement for your pet. See the difference in your pet’s well being.