36 min video
https://www.youtube.com/watch?v=e_5oU06GpSE
13 min...
Quite a good list to be aware of...
Adenosylcobalamin
Cyanocobalamin
Hydroxocobalamin
https://youtu.be/1RV13OaKXUg...
they treat the subject well.
Listen to the end.
https://youtu.be/IkeuKPZxEhM?si=0SoIsQsH4iO33N1x...
https://www.prnewswire.com/news-releases/could-all-the-experts-be-wrong-about-parkinsons-301308244.h