the body weight gain of the calcium-deficient rats for 8 days receiving a calcium-deficient diet supplemented with raw-powdered spinach ( r-sp ) , boiled-powdered spinach ( b-sp ) , or calcium-oxalate ( ca-ox ) , and a control diet supplemented with oxalic acid ( ox-c ) were 4.8 , 2.8 , 4.9 , and 5.1 g , respectively .
C0006706
calcium-oxalate
C0069715
oxalic acid