Biochemistry Form of vitamim D which is measured in serum ? A Cholecalciferol B 25 hydroxyvitamin D C 1,25 dihydroxyvitamin D D 24,25 dihydroxyvitamin D 💡 Explanation Form of vitamim D which is measured in serum ? ✓ Correct Answer: D. 24,25 dihydroxyvitamin D