“…Intestinal calcium-binding protein (CaBP) has been detected in a wide variety of animals including frog, carp, and pike (1,2), chick (1,(3)(4)(5), rat (5)(6)(7)(8)(9), hamster ( l o ) , guinea pig2 (13), dog (14), pig (1, 5 , 13), bovine (15), horse (13), squirrel and cebus monkeys (16), and human (17)(18)(19)(20). In at least the chick (3,4), rat (6)(7)(8), dog (14), and monkey (16) CaBP is vitamin D-dependent, i.e., in the absence of vitamin D, synthesis of CaBP is reduced or absent.…”