Some people with B12 deficiency experience reduced appetite and unintended weight loss.
These symptoms are nonspecific, meaning many medical conditions can cause them. Persistent unexplained weight loss should therefore be discussed with a healthcare professional rather than assumed to be a vitamin problem.
8. Mood or Psychological Changes
Vitamin B12 deficiency can affect the nervous system and, in some cases, may be accompanied by psychological symptoms.
These may include:
Low mood
Anxiety
Irritability
Confusion
More severe deficiency can sometimes be associated with significant cognitive or psychological changes.
Mental-health symptoms should never be assumed to result solely from a vitamin deficiency.
9. Vision Problems
