Calcium is interrelated with phosphorus. A proper ratio of the two minerals is needed to ensure their utilization by a pet. Animal nutrition studies show that calcium and phosphorus should be included in a pet's diet at a ratio of 1.0 to 2.0 parts calcium to each 1.0 part phosphorus. Widening ratios beyond this point may be detrimental to bone calcification. If the amount of phosphorus far exceeds the amount of dietary calcium, bone abnormalities may occur.
Meats are deficient in calcium and the ratio of calcium to phosphorus is very poorly balanced.
Some lean meats have only one part calcium to 18 parts phosphorus. The absorption of calcium and phosphorus into the bones and teeth also requires a sufficient amount of vitamin D in a pet's diet. Excessive amounts of vitamin D may be toxic to a pet. Again, high quality pet foods to the rescue. They offer proper levels of vitamin D in relation to the levels and ratio of calcium and phosphorus in a diet.