Cause 6: Exposure to Certain Chemicals
The modern industrialized world comes with its benefits, but it also carries unseen dangers, one of them being our constant exposure to a variety of chemicals. Some of these chemicals are endocrine disruptors, meaning they interfere with the body’s endocrine system, which includes the thyroid gland. This interference can disrupt iodine absorption, contributing to iodine deficiency.
Perchlorate, thiocyanate, and nitrates are common examples of such chemicals. Perchlorate, for instance, is a component of rocket fuel, fireworks, and certain types of fertilizers. It’s also found in small amounts in some public drinking water supplies and certain food products.
Thiocyanate is another such chemical, present in tobacco smoke and certain foods like cabbage, broccoli, and cauliflower. Nitrates, widely used in fertilizers and food preservatives, also belong to this category of chemicals that affect iodine uptake.
These chemicals don’t just reside in the external environment. They make their way into our bodies through the air we breathe, the food we eat, and the water we drink. Inside the body, they exert their influence by blocking the transport of iodine into the thyroid gland, a critical step in the synthesis of thyroid hormones.
Addressing this cause of iodine deficiency isn’t straightforward, as it’s closely tied to broader issues such as industrial regulations, environmental conservation, and public safety standards. However, at an individual level, being aware of these risks, making informed choices, and taking protective measures can help reduce exposure to these chemicals. (6)
