A member asked:

After one month of taking oral b12 vitamin of 500 mcg my level came back to normal. then after 3 months of quitting the vitamin, my level dropped to deficient level. could this indicate an issue of absorption in the intestines?

A doctor has provided 1 answer
Dr. Mark Owolabi answered

Specializes in Family Medicine

Possibly. But nevertheless, oral B12 corrects the deficiency so you should probably stay on the vitamin. You can discuss with your doc about potential causes.

Answered 7/2/2022

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