Calcium supplements are indicated for the prevention and treatment of calcium deficiency and to balance diets that may be low in calcium. Calcium deficiencies cause skeletal deformaties and lameness in growing animals. Calcium liquids are absorbed better than tablets and powders and are used to treat calcium deficiencies. Calcium powder and tablets combine calcium with phosphorus and vitamin D3 and are used to supplement pets fed home made diets. Calcium powder is scientifically formulated to correct the calcium/phosphorus balance in meat and cereal diets. The appropriate amount of the powder can be easily mixed with the daily meal.