Symptoms of iodine deficiency in the body (Page 2 ) | August 8, 2025

Symptoms of iodine deficiency in the body

Iodine is responsible for the synthesis of thyroid hormone. This hormone controls the body’s metabolism and many important functions, so its deficiency has a significant impact on the body. Iodine deficiency can occur at all stages of a person’s life, from infancy to old age.

Learn about some symptoms of iodine deficiency in the body in adults:

• the thyroid gland may become enlarged (goiter)
• the development of hypothyroidism or a reduction in the levels of thyroid hormone production
• other symptoms of hypothyroidism: hoarseness, dry skin, weight gain and intolerance to cold
• can lead to infertility
• In the case of pregnant women, the symptoms are: premature births, fetal death and a high risk of miscarriages.

Symptoms of iodine deficiency in children:

• intellectual disability
• impaired physical development
• birth defects
• physical disabilities, such as deafness or muteness
• hypothyroidism.

How to obtain iodine?

You can obtain it through iodized table salt. By law, the salt sold in Brazil is iodized. If consumed in moderation, salt is safe and does not produce adverse effects.

Tips for using iodized salt

• Check the packaging to see if it contains iodine.\
• Do not put the container of iodized salt in the refrigerator; store it in a well-ventilated place.
• Check the expiration date on the packaging.
• Avoid placing it near very hot places, such as a gas stove.
• Pour the salt into a tightly sealed container.

Foods rich in iodine

In general, there is little iodine in foods, unless iodized salt is added during food processing.

• Seafood: herring, cod, mussels, salmon, halibut, seaweed, cockles, ….
• Cereals: wheat, rice, oats, rye.
• Dairy products: cheese, condensed milk.
• Vegetables: spinach, chard, onion, garlic, beets, cucumber, green beans

Note: This website is intended to provide information only, but is not a substitute for a healthcare professional. Consult your doctor regularly.

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