Calci Vit supplement is an easy-to-use and completely natural source of calcium that promote proper bone growth and supports contractions in heart muscle, which helps the heart to function very well in growing pups as well as the proper development of offsprings in bitchs. Not only does Calci-Vit offer a natural source of Calcium, but also contains phosphorus, magnesium, selenium, and other essential minerals that are very necessary for fast-growing animals.