6th February 2024

A 67-year-old male presents with memory loss.

A 67-year-old male presents with memory loss. The patient is adamant that his memory is normal and that he does not need to be hospitalised. However, his family states that most of his stories are not true, and he has been mixing up events in his life and has been found to create events that did not occur. He has been a known alcoholic for 20 years but has recently stopped. 

Which of the following vitamins is associated with the underlying diagnosis?