10 signs of iodine deficiency

4. Depression/memory problems
Hypothyroidism can cause signs of depression and memory issues in the early stages. When the body can't metabolize calories for energy, that affects the brain's ability to process and react efficiently. Thought processes and memory could be slowed and scattered. Iodine deficiency affects many chemical reactions within the mind and body. Researchers have proven that chemical imbalances can cause mental disorders, including depression and anxiety.
5. Cold sensitivity
Feeling cold and chilled is a common complaint from someone suffering from iodine deficiency. Individuals with hypothyroidism have reduced energy production. In addition, the skin may also appear pale from the lack of proper metabolism and nutrients. Also, thyroid hormones help regulate the body's temperature. If those hormones are low, temperature sensitivity is likely to occur.
6. Infertility
Hypothyroidism disrupts the ovulation cycles of females, affecting fertility by disrupting regular cycles. Furthermore, hormonal imbalances can cause women to experience heavier than usual or irregular menstrual cycles.
7. Goiter
The thyroid gland is a butterfly-shaped gland at the front of the neck. The neck area is where a goiter can form in cases of iodine deficiency. A goiter is one of the earliest signs of hypothyroidism because the thyroid gland swells in response to constant stimulation to produce more hormones. The body also tries to enlarge the thyroid gland so it will be able to absorb more iodine. Typically, a goiter is not a problem, but if it becomes too enlarged it can cause breathing and swallowing difficulties.
8. Heart complications
A typical symptom of hypothyroidism is a slow heart rate. Thyroid hormones directly affect body temperature and heart rate regulation. If thyroid levels are lacking, the body can't regulate the heart rate effectively. A slow heart rate, or bradycardia, can cause symptoms such as dizziness, nausea and fainting. Chronic hypothyroidism can lead to high levels of LDL (bad) cholesterol. High cholesterol increases one's risk of heart attacks, heart disease and heart failure.
9. Hair, skin and nail problems
Thyroid hormones support the growth of hair, skin and nails. The lack of these hormones commonly causes the skin to become dry, pale and itchy. The nails and hair can become dry, thin and brittle. A decrease in metabolism further hinders skin, hair and nail health as the amount of nutrient-rich blood delivered to the body is insufficient.

10. Birth defects
Babies born to mothers with an iodine deficiency can experience serious complications. Iodine is essential for normal growth, healing and metabolism. Babies who are iodine deficient face an increased risk for intellectual and developmental delays. Mental retardation, deafness, mutism, stunted growth, neurological problems and delayed sexual maturity are possible complications of iodine deficiency. The mother and infant are also at an increased risk of experiencing a miscarriage or stillbirth.