As in humans, calcium is the most abundant mineral in the animal body. In addition to its role in the formation of bones and teeth, it also has a very important role in blood clotting, joint structure, pulse regulation and restoration of the neural system.Therefore, it is very important to meet the daily calcium needs of our furry friends. Especially during pregnancy and lactation period, both the mother and the offspring have an increased need for calcium.Similarly, rapid growth in large breed pets continues until 24 months of age. During this critical period, lack of calcium may cause life-long, irreparable skeletal problems.Calcium absorption may decrease for various reasons. Vitamin D is a key player in calcium absorption, and deficiency can lead to decreased calcium absorption. Therefore, let your furry friend run and play around and get plenty of sunlight on sunny days.D-Kaltabs contains sufficient amount of Vitamin D in addition to calcium and phosphorus.D- Kaltabs for Cats Feeding Directions: For cats 2 tablets daily; 1 tablet in the morning and 1 tablet in the evening. Can be given directly or can be crushed and sprinkled into the dry/wet food.