⭐️ All About Iodine

Why our bodies depend on iodine, and how seaweed naturally provides it

Iodine plays an essential role for the production of thyroid hormones, which regulate metabolism, brain development, and reproductive health. A healthy adult body holds just 15–20 mg of iodine, mostly stored in the thyroid gland. That small amount drives processes that affect nearly every organ system: protein synthesis, energy regulation, thermogenesis, and glucose metabolism.

But what happens when we don’t get enough Iodine?

Iodine deficiency is the leading cause of preventable brain damage worldwide. In children, it impairs mental development and lowers IQ by an average of 10–12 points in affected areas. In pregnant women, deficiency can lead to miscarriages, stillbirths, or congenital hypothyroidism. In adults, it manifests as goiter (thyroid enlargement), hypothyroidism, and decreased work capacity. Severe, prolonged deficiency can result in cretinism, characterized by intellectual disability, hearing and speech defects, and stunted growth.

The World Health Organization has called iodine deficiency “the single most significant preventable cause of brain damage” globally.

Beyond the thyroid:

Iodine also acts as an antioxidant, immunomodulator, and cellular regulator, with effects across multiple organ systems.

Recent studies have linked iodine status to modern metabolic disorders:

• Metabolic syndrome: Both deficiency and excess show U-shaped associations with risk, but seaweed intake appears protective.

• Obesity: Children and adults with low urinary iodine concentrations (UIC) are more likely to be overweight. Supplementation with iodine-rich seaweeds has reduced body fat and waist circumference in clinical trials.

• Diabetes and blood sugar: Iodine status influences fasting glucose and insulin sensitivity, with deficiency linked to greater risk of type 2 diabetes.

• Cardiovascular health: Iodine deficiency increases the risk of dyslipidemia, with low UIC associated with higher cholesterol and LDL.

In other words, iodine is not only about preventing goiter—it is about supporting whole-body resilience against oxidative stress, inflammation, and chronic disease.

How Much Iodine Do We Need?

The recommended daily intake is around 150 μg/day for adults, 220 μg/day in pregnancy, and 290 μg/day during lactation. While most countries rely on iodized salt as a public health strategy, many people are cutting salt intake for cardiovascular health. This creates a nutritional gap that must be filled by food sources.

Seaweed: Natures Iodine Reservoir

Marine algae are among the richest natural iodine sources, but the amount varies between different species. Chondrus crispus, also known as Irish Sea Moss, is a red seaweed species that provides a balanced, bioavailable source of iodine. Studies highlight that the iodine it contains is not only abundant but also bioavailable, meaning your body can absorb and use it effectively.

Because it is naturally encapsulated in a polysaccharide-rich matrix, the iodine in sea moss is thought to be released more gradually, potentially lowering the risk of thyroid overstimulation. This makes Irish Moss a safer whole-food option for people seeking iodine through diet rather than pills.

Uncracked’s sea moss gel is made from wild-harvested Chondrus crispus. The gel offers a simple, versatile format you can stir into smoothies, blend into dressings, fold into oatmeal, or even add to soups. It’s a way to honor the traditional use of Irish Moss while making it effortless to incorporate into your everyday routine.