If you experience hair loss because of an iodine deficiency, getting enough of this mineral may help correct your thyroid hormone levels and stop hair loss. An iodine deficiency may prevent hair follicles from regenerating.
Fortunately, getting sufficient iodine can help correct hair loss that occurs due to an iodine deficiency. Thyroid hormones, which contain iodine, help your skin cells regenerate. Additionally, thyroid hormones help the body regulate sweat.
People with lower thyroid hormone levels, such as those with an iodine deficiency, tend to sweat less than people with normal thyroid hormone levels 18 , Given that sweat helps keep your skin moist and hydrated, a lack of sweat may be another reason why dry, flaky skin is a common symptom of iodine deficiency. Dry, flaky skin may occur with an iodine deficiency, as the mineral helps your skin cells regenerate. It also helps your body sweat and hydrates your skin cells, so an iodine deficiency can cause you to sweat less.
Since iodine is used to make thyroid hormones, an iodine deficiency can cause your thyroid hormone levels to plummet. Given that thyroid hormones help control the speed of your metabolism, low thyroid hormone levels may cause it to slow down.
A slower metabolism generates less heat, which may cause you to feel colder than usual 20 , Also, thyroid hormones help boost the activity of your brown fat, a type of fat that specializes in generating heat. This means that low thyroid hormone levels, which may be caused by an iodine deficiency, could prevent brown fat from doing its job 22 , It may be affected by your iodine levels.
Too little of this mineral could cause your heart to beat slower than usual, while too much of it could cause your heart to beat faster than usual 24 , A severe iodine deficiency may cause an abnormally slow heart rate. This could make you feel weak, fatigued, dizzy and possibly cause you to faint An iodine deficiency may slow your heart rate, which may leave you feeling weak, fatigued, dizzy and at risk of fainting. An iodine deficiency may affect your ability to learn and remember 27 , 28 , A study including over 1, adults found that those with higher thyroid hormone levels performed better on learning and memory tests, compared to those with lower thyroid hormone levels Thyroid hormones help your brain grow and develop.
In fact, studies have found that the hippocampus, the part of the brain that controls long-term memory, appears to be smaller in people with low thyroid hormone levels An iodine deficiency at any age may cause you to struggle to learn and remember things.
One possible reason for this might be an underdeveloped brain. This is because they need to consume enough to meet their own daily needs, as well as the needs of their growing baby.
The increased demand for iodine continues throughout lactation, as babies receive iodine through breast milk Not consuming enough iodine throughout pregnancy and lactation may cause side effects for both the mother and baby. Mothers may experience symptoms of an underactive thyroid, such as a goiter, weakness, fatigue and feeling cold. Meanwhile, an iodine deficiency in infants may stunt physical growth and brain development 4. Furthermore, a severe iodine deficiency may increase the risk of stillbirth Getting enough iodine is especially important for pregnant and breastfeeding women, as they have higher needs.
An iodine deficiency may cause severe side effects, especially for the baby, such as stunted growth and brain development. Heavy and irregular menstrual bleeding may occur as a result of an iodine deficiency Like most symptoms of iodine deficiency, this is also related to low levels of thyroid hormones, given that iodine is needed to make thyroid hormones. Research also shows that women with low thyroid hormone levels experience more frequent menstrual cycles with heavy bleeding.
This is because low thyroid hormone levels disrupt the signals of hormones that are involved in the menstrual cycle 37 , Some women with an iodine deficiency may experience heavy or irregular periods.
This is because low thyroid hormone levels may interfere with hormones that are involved in regulating the menstrual cycle. There are very few good sources of iodine in the diet.
This is one reason why iodine deficiency is common worldwide. The recommended daily intake RDI is mcg per day. However, pregnant or breastfeeding women need more. Pregnant women need mcg daily, while lactating women need mcg daily The foods below are excellent sources of iodine 39 :. Seaweed is usually a great source of iodine, but this depends on where it came from. Seaweed from some countries, such as Japan, are rich in iodine Smaller amounts of this mineral are also found in a variety of foods like fish , shellfish, beef, chicken, lima and pinto beans, milk and other dairy products.
The best way to get enough iodine is to add iodized salt to your meals. It's true that not having enough iodine iodine deficiency can cause hypothyroidism. But iodine deficiency has been rare in the United States and other developed countries since iodine has been added to salt iodized salt and other foods.
If the underactive thyroid isn't caused by iodine deficiency, then iodine supplements give no benefit and shouldn't be taken.
In fact, for some people with an underactive thyroid, too much iodine can cause or worsen their condition. You can also get it in foods like fish, Brazil nuts, meat and poultry. Eating the wrong foods or taking the wrong supplements can cause trouble for people with thyroid problems. Learn more about vaccine availability. Advertising Policy. You have successfully subscribed to our newsletter.
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