Iron is the most important mineral for transporting oxygen and for the production and functioning of red blood cells throughout the body. A deficiency of red blood cells increases exhaustion and reduces the ability of the immune system to fight infections, leading to many issues. Adequate iron is also required for proper functioning of immune cells – neutrophils and lymphocytes.
Iodine is the best nutritional mineral for the thyroid. The thyroid controls the functioning and efficiency of the metabolism, which is directly related to immune system performance.