Question: what vitamins and minerals are we most deficient in?
Answer: Iron deficiency. Iron is an essential mineral. ...  Iodine deficiency. Iodine is an essential mineral for normal thyroid function and the production of thyroid hormones ( 8 ). ...  Vitamin D deficiency. ...  Vitamin B12 deficiency. ...  Calcium deficiency. ...  Vitamin A deficiency. ...  Magnesium deficiency.