Metformin Without Vitamin B12 May Impair Cognition

I am a little surprised at this study,
as I have been aware of this for some time and knew that metformin
caused Vitamin B12 deficiency. I also knew that Vitamin-B12
deficiency could cause cognition problems in patients. Now a new study from Australia suggests, repeat, suggests this may be true.
Yes, there have been some conflicting studies previously, but
apparently, this study can only