Here’s a compelling article from Deane Alban. It’s called How Vitamin B12 Benefits the Brain.
It makes some interesting points on Vitamin B12. Here’s one that’s particularly fascinating:
Many seniors diagnosed with dementia or Alzheimer’s are in fact “only” B12-deficient and can make remarkable recoveries when their low B12 levels are addressed.
This misdiagnosis occurs because the symptoms of vitamin B12 deficiency closely mimic that of these diseases.
Have a look at the complete article for more information and context.