it for 3 consecutive days. If the temperature is 97 or below each day you have hypothyroidism.
on iodine. In a severe deficiency of adequate iodine the gland cannot produce adequate amount of hormone. This leads to hypothyroidism. If this occurs early in life, the brain never develops. Collectively all adverse effects emerging from lack of iodine are currently called Iodine Deficiency Disorders (IDD). The World Health Organisation (WHO) estimates that roughly 2 billion humans (30% of world population) suffer from or are at risk for IDD. Biochemically iodine’s main function is as
Thyroxine (T4) and triodothyronine (T3) are comprised of approximately 65 and 59% iodine by weight respectively. All mammals depend on thyroid hormones for regulation of enzymatic activity and protein synthesis. In a slightly deficient state the thyroid swells up to compensate often leading to goiter. Iodine is readily absorbed via the entire length of intestinal tract. Although iodine deficiency is the most common cause for hypothyroidism globally, nearly all cases of hypothyroidism in the industrialised world are secondary to autoimmune disease.
Thyroid hormones perform the following functions:
- Regulation of basal metabolic rate
- Regulation of macronutrient metabolism.
- Regulation of development, growth and sexual maturation.
- Regulation of breathing
- Regulation of heart rate
- Regulation of body weight
- Regulation of body temperature
- Regulation of muscle strength and many more
If the T3 and T4 are either too high or two low they produce symptoms of hyperthyroidism and hypothyroidism respectively. Hypothyroidism is a common problem and causes tiredness, weight gain or difficulty in losing weight, lower than normal body temperature. Hyperthyroidism causes anxiety, anorexia, weight loss, hand tremors, increase in heart rate.
Iodine is abundant in soil and sea water, but regional levels vary tremendously based on past snow, rain and glaciation all of which leach it to the ocean. Many regions in the world in the past have been known as goitre belt due to low soil iodine. The regional variation in goitre is
due to the fact that the amount of iodine found in the plants varies with the concentration of the iodine in the soil. Since iodine is abundant in sea water, nearly all foods from the sea are rich in it. Iodine fortification of salt has all but eliminated goitres but hypothyroidism is prevalent widely. Goitrogens are plant chemicals that block the iodine uptake and are found in cruciferous vegetables, millet and soy. These chemicals are heat-labile and rendered