Deficiencies in a number of minerals may cause depression.
- Magnesium: Deficiency can result in depressive symptoms, along with confusion, agitation, anxiety, and hallucinations, as well as a variety of physical problems. Most diets do not include enough magnesium, and stress also contributes to magnesium depletion
- Calcium: Depletion affects the central nervous system. Low levels of calcium cause nervousness, apprehension, irritability, and numbness.
- Zinc: Inadequacies result in apathy, lack of appetite, and lethargy. When zinc is low, copper in the body can increase to toxic levels, resulting in paranoia and fearfulness.
- Iron: Depression is often a symptom of chronic iron deficiency. Other symptoms include general weakness, listlessness, exhaustion, lack of appetite, and headaches.
- Manganese: This metal is needed for proper use of the B-complex vitamins and vitamin C. Since it also plays a role in amino-acid formation, a deficiency may contribute to depression stemming from low levels of the neurotransmitters serotonin and norepinephrine. Manganese also helps stabilize blood sugar and prevent hypoglycemic mood swings.
- Potassium: Depletion is frequently associated with depression, tearfulness, weakness, and fatigue.