Vitamin B12 deficiency can lead to pernicious anemia, which can cause mood swings, paranoia, irritability, confusion, dementia, and hallucinations.
Vitamin B complex deficiency can negatively affect memory function, lead to cognitive impairment and dementia.
Vitamin B1 (thiamine) deficiency is associated with memory loss, anxiety, depression, irritability and insomnia.
Magnesium deficiency has been linked to anxiety and dysregulation of the HPA axis, which can lead to mood imbalances.
Zinc deficiency can contribute to depression, anxiety and mood swings
Selenium deficiency has been linked to depression and negative mood
Copper deficiency can cause irritability, anxiety and depression
Manganese deficiency can cause mood swings, anxiety and depression
Vitamin D deficiency can cause fatigue, muscle weakness, hair loss, back pain, poor skin healing, bone pain and mood swings.
A lack of omega-3 fatty acids has been linked to depression and other mood disorders