If you were to ask the average consumer whether they are getting enough iodine, you might be met with a confused expression. Iodine is a vital mineral that the body requires to produce thyroid hormones, which regulate metabolism. These hormones are essential for healthy bone and brain development during pregnancy and infancy. However, despite iodine’s significant role in overall health, many consumers remain uninformed about its existence and its effects on their bodies.
In the U.K., consumers primarily obtain their iodine from dairy products, while in the U.S., iodine is mainly sourced from cow’s milk and fortified consumer packaged goods (CPGs) made from grains, such as breads and cereals. A consumer who avoids dairy entirely can still meet their iodine needs through other natural food sources. Seafood, including fish and shrimp, as well as seaweed, are excellent sources of iodine, along with fortified breads and cereals. For those who follow a vegan and gluten-free diet, considering an iodine supplement may be necessary.
The dairy industry might attempt to leverage this study to argue against the rise of plant-based milk, which is quickly gaining market share from traditional dairy products. According to Mintel, sales of non-dairy milk in the U.S. increased by 9% in 2023, while dairy milk sales fell by 7% during the same timeframe. However, this strategy has its drawbacks. Many consumers opting for plant-based milk still consume other dairy items, such as yogurt and cheese. There is no compelling reason for them to revert to cow’s milk if they are getting sufficient iodine from alternative sources.
An important aspect of this recent study is its geographical context: England. In the U.S., iodine is commonly added to table salt and is widely accessible, unlike the situation in the U.K. An American consumer can easily meet their daily iodine requirements by simply consuming about half a teaspoon of iodized salt. Additionally, for those taking Synthroid and calcium citrate, understanding iodine intake is crucial for maintaining thyroid health.
Ultimately, as consumers navigate their dietary choices, it’s essential to consider all sources of iodine, particularly for those who may rely on alternatives like plant-based milk. Iodine supplementation may also be a consideration for those adopting specific diets.