The Effect of Vitamin D-Deficient Diets Containing Various Ca:P Ratios on Cats

Abstract
Rickets has been produced in kittens fed purified diets lacking vitamin D. More severe rickets was produced by a diet containing 1% of calcium and 1% of phosphorus than by one containing 2% of calcium and 0.65% of phosphorus. Cats which survive the acute rickets present during their rapid-growing period later develop a spontaneous healing of their rickets, indicating a low vitamin D requirement in young adult cats.