The riddle of nonalcoholic fatty liver disease: Progression from nonalcoholic fatty liver to nonalcoholic Steatohepatitis (in Eng)
Point 1 in above link is about being under treated for B12 deficiency with neuro symptoms present
Oral vitamin B12 supplements come as tablets, lozenges, and high-dose regimens
Biologically active vitamin B12 compounds in foods for preventing deficiency among vegetarians and elderly subjects
Ailments like anemia and undergone gastrointestinal surgery patients also will not have absorption ability
Any neurological symptoms: Mind : brain fog, poor memory, poor concentration, word finding difficulties, dementia, parkinsonism, insomnia