Oldvatr
Expert
- Messages
- 8,470
- Type of diabetes
- Type 2
- Treatment type
- Tablets (oral)
I agree in principle with your statements above, but we are all different, and, as a habitual user of Metformin ~(4x500mg per day) for over 10 years, I can report that my B12 levels are fine and well up according to my last 2 blood tests. My last 2 HbA1c were 43 so I am well controlled for last year.I started taking Vitamin B12 and Alpha Lipoic Acid (ALA) after getting pins and needles sensations in my hand. Neuropathy is a symptom of prolonged high blood sugar, so I was a little surprised at getting symptoms once my blood sugars had normalised. I was also getting symptoms of "brain fog" and finding it difficult to remember things. Alpha Lipoic Acid is also good for brain fog as well as neuropathy.
Metformin can cause vitamin B12 deficiency which can result in neuropathy symptoms and memory loss. I think it is unwise to take high doses of Metformin if you have effectively controlled high blood sugar through a low carb diet. For that reason I reduced my Metformin from 2x500 to 1x500 in February and stopped taking it altogether in May once my HbA1C reduced to 44. Anyone taking Metformin should consider taking B12 supplements and maybe ALA as well.
Having said that, I am going to ask my GP to halve my Metformin dose since i do not like being on a long term med amd my lifestyle changes are bearing fruit so that I can also reduce my other diabetic meds, and also my BP meds. I have been taking ALA recently, but not noticing any benefit, so will drop it and see if things change the other way.