If you ask the average consumer whether they are getting enough iodine, you might be met with a puzzled expression. Iodine is an essential mineral that the body requires to produce thyroid hormones, which regulate metabolism. These hormones are also vital for proper bone and brain development during pregnancy and early childhood. Despite its significant role in overall health, many people are unaware of what iodine is and how it affects their bodies.
In the UK, consumers primarily obtain their iodine from dairy products, while in the U.S., the main sources are cow’s milk and fortified consumer packaged goods (CPGs) derived from grains, such as breads and cereals. A person who avoids all forms of dairy can still meet their iodine needs through other natural food sources. Foods like fish, seaweed, shrimp, and various seafood are rich in iodine, along with fortified breads and cereals. However, a vegan consumer who also avoids gluten may need to consider taking an iodine supplement to ensure adequate intake.
The dairy industry might leverage this study to bolster its argument against the rising popularity of plant-based milk, which is quickly gaining market share from traditional dairy. According to Mintel, U.S. sales of non-dairy milk increased by 9% in 2015, while dairy milk sales fell by 7% during the same timeframe.
However, there are potential flaws in this approach. Many consumers who opt for plant-based milk still consume other dairy products, such as yogurt and cheese. There is little incentive for them to revert to cow’s milk if they are obtaining sufficient iodine from alternative sources. It is also crucial to note the location where this study was conducted and published: England. Unlike the U.S., where iodine is frequently added to table salt and is readily available, this is not the case in the UK. An American consumer looking to fulfill their daily iodine requirement through salt alone would need to consume approximately half a teaspoon each day.
In addition to iodine, it is essential for individuals to also focus on other nutrients, such as calcium and vitamin K, to maintain overall health, especially if they are reducing dairy intake. While iodine supports thyroid function, calcium is crucial for bone health, making it important for consumers to ensure they are getting enough of both minerals through their diets or supplements as needed.