supplements prevent or treat dementia in people who are not deficient, but B12 deficiency itself can cause serious symptoms and needs proper treatment.
6. Mood Changes, Depression, or Irritability
Vitamin B12 deficiency can also affect mood. Some people experience depression, irritability, anxiety, personality changes, or emotional instability.
Cleveland Clinic explains that vitamin deficiency anemia can cause depression, and severe vitamin B12 deficiency may cause confusion, forgetfulness, or personality changes.
Mood changes do not always mean B12 deficiency. They can come from stress, grief, sleep problems, depression, medication effects, or many
