Answer:
Vitamin A deficiency can cause vision loss and blindness. It can also lead to complications with your skin, heart, lungs, tissues, and immune system.
Iron - You may notice pale skin and cold hands and feet. Iron-deficiency anemia can also cause you to feel dizzy or lightheaded. Occasionally, it can cause chest pain, a fast heartbeat and shortness of breath. Iron deficiency can cause you to have unusual cravings for non-food items such as ice, dirt or paper.
Iodine - Symptoms include enlargement of the thyroid gland causing a bulge in the neck (goiter). Fatigue, constipation, and sensitivity to cold temperatures may also occur. lump or swelling in the neck, enlarged thyroid, constipation, difficulty thinking and understanding, fatigue, sensitivity to cold, or slow growth