Each of these foods contains 250 mg of calcium per portion   Portion Size # of Portions Total Calcium  Firm cheese (cheddar, swiss,         gouda, reg or low fat) 1 1/4" cube      Processed cheese slices         (reg or low fat) 2 slices      Salmon, canned with bones 1/2 can      Sardines, canned with bones 1/2 can      Yogourt, fruit flavoured         (reg or low fat) 3/4 cup