Some side effects aren’t obvious right away, however. Vitamin B12 loss in particular could sneak up on a person, as it did to this reader.
Was Crippling Foot Pain a Result of Vitamin B12 Loss?
Q. I have been on metformin since I was diagnosed with diabetes several years ago. About a year ago, I develop debilitating neuropathy. Just going to the store for an hour kept me off my feet for a few days.
My podiatrist suggested a vitamin B complex. After taking it for two weeks, the difference is amazing. My feet hardly hurt at all and I can bend my toes more than I could before. I think I’m getting a little feeling back in areas that are numb.
Vitamin Depletion due to Metformin:
I read on your site that metformin can deplete B vitamins. I have suffered terribly for a year because doctors prescribe medicines without really knowing the side effects. Now I’m going to talk to my doctor about the gas and bloating I get from metformin.
Watching Out for Vitamin B12 Loss While Taking Metformin:
A. Metformin is well known to deplete vitamin B12. Levels should be monitored regularly for those on metformin or acid-suppressing drugs, which also can reduce vitamin B12 absorption.
Symptoms of vitamin B12 deficiency include numbness, tingling, nerve pain, difficulty walking, fatigue and anemia. We are sending you our Guide to Managing Diabetes with more information on metformin and nondrug ways to help control blood sugar.