If you ask the average person whether they are receiving 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 proper bone and brain development, particularly during pregnancy and infancy. Despite its significant health benefits, many people remain unaware of iodine’s importance and its effects on the body.
In the UK, most consumers obtain their iodine from dairy products, whereas in the U.S., the primary sources are cow’s milk and fortified consumer packaged goods (CPGs) made from grains, such as bread and cereals. A person avoiding all dairy can still meet their iodine needs through other natural food sources. Seafood like fish, shrimp, and seaweed are abundant in iodine, as are fortified breads and cereals. However, a vegan consumer who is also gluten-free may need to consider iodine supplementation to ensure adequate intake.
The dairy industry might leverage this study to bolster its argument against the growing popularity of plant-based milk, which is quickly gaining market share from traditional dairy. According to Mintel, sales of non-dairy milk in the U.S. rose by 9% in 2015, while dairy milk sales fell by 7% during the same timeframe.
However, there are a few potential flaws in this strategy. Many consumers who opt for plant-based milk continue to consume other dairy products like yogurt and cheese, so there is little incentive for them to revert to cow’s milk if they are getting enough iodine from alternative sources.
A critical aspect of this recent study is its origin and publication in England. While iodine is often added to table salt in the U.S. and is readily available, the same cannot be said for the UK. An American could easily meet their daily iodine requirement by consuming just half a teaspoon of salt per day.
It’s also worth noting that individuals who take calcium citrate as a supplement may experience constipation, which can influence their overall dietary choices. Therefore, while addressing iodine intake, consumers should also consider the implications of supplements like calcium citrate on their digestive health as they navigate their nutritional needs.