Minerals and why we need them
Iodine RDA 150ug.
One reason the body's metabolism can slow down is because of a lack of iodine. This mineral has an intimate relationship with the thyroid gland, which controls many functions within the body. When iodine is low, the thyroid cannot keep the body in an upbeat state of health, so everything slows down.
Iodine restores the temperature or heat in the body by increasing metabolism. Iodine is mostly stored in the thyroid, but smaller amounts are in the muscles and bones. Indirectly, iodine has a major effect on a lot of systems in the body through the thyroid gland. Hormones, which are produced by the thyroid gland, help control the metabolism of the body by increasing the assimilation of nutrients. So the closer your metabolism is to being normal (faster), the more nutrients you process. If you do not have enough iodine, everything slows down and the nutrients taken in cannot be processed properly. This underfunctioning is felt throughout the body.
Through the thyroid gland, iodine also helps control digestion, regulates the rate that the body uses oxygen, controls body temperature and affects mental function. It also has control over the nervous system, reproductive system, body weight and heart rate. Dry skin is a good indication of iodine deficiency.Iodine and its role within the nervous system
Low iodine levels can cause the body's engine to run at a lower pace, this inevitably results in a slow unproductive nervous system with the inevitable consequence of lowered neurotransmitter output, mental and physical fatigue.Symptoms associated with iodine deficiency
Goiter - cretinism - fatigue - overweight - mental retardation - debility - cancer - blood sugar problems - diabetes - poor hair skin and nails - rapid pulse - cold body - constipation - general weakness - excessive menstruation - nervousness - irritability - low resistance to colds and infections - low energy levels.Best food sources
Kelp - seaweeds - onions - shellfish.