Biochemistry Which of the following is not true in vitamin B9 deficiency A Vitamin B9 is stored in liver for 3 - 4 months B Deficiency manifests as increased homocysteine and normal methylmalonic acid levels. C Deficiency manifests as increase in both homocysteine and methylmalonic acid levels. D Phenytoin intake can cause deficiency state of Vitamin B9 💡 Explanation Which of the following is not true in vitamin B9 deficiency ✓ Correct Answer: C. Deficiency manifests as increase in both homocysteine and methylmalonic acid levels.