metformin b12 injections If you have been on for several years, monitoring is essential. The Link: Long-term use (typically 4+ years) can interfere with Vitamin B12 absorption. Symptoms to Watch: Fatigue, memory issues Why Metformin Lowers B12: Signs
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LafeberVet.
1, 2009, pp
For example, too much folic acid can hide a Vitamin B12 deficiency, causing nerve damage if not managed right
