It helps the body process protein and supports the production of serotonin and dopamine, which influence mood, appetite, and sleep
You may find that like me, they are a different to normal for a while
B12: The Basics B12 is a water-soluble vitamin that plays a role in red blood cell formation, metabolism, immune health, DNA synthesis, and brain and nervous system functioning
Faster metabolism, sharper focus, and energy that lasts
Association of vitamin B12 deficiency in people with type 2 diabetes on metformin and diabetic peripheral neuropathy Nature article: Shows prolonged metformin use correlates with lower B12 and more severe diabetic neuropathy
Vitamin B12 deficiency is believed to be widespread all over the world