B12 deficiency

[Farooqji]

A study of patients with early Parkinson’s disease found that groups with lower levels of vitamin B12 faced on average a more rapid acceleration of both motor and cognitive symptoms, which slowed in some cases after taking a daily multivitamin.

ucsf.edu/news/2018/03/40999...

[Enidah]

Vegetarians and vegans especially tend to have B-12 deficiencies. I've been a vegetarian for a long time, although I have now started eating fish, so I take B12 everyday.

[Hil101 in reply to Enidah]

Please can you tell me if you feel any better for eating fish? My partner, who's the one with Parkinson's, has been a strict vegetarian for 45 years and it seems clear that nutrition is involved since he has improved after taking supplements including B12 and folate.

Thanks

[Enidah in reply to Hil101]

No, I can't say that I notice any difference.