Key points by Dr. Navleen Arora, ND – Insight Naturopathic Clinic

Iodine has recently gained popularity in health circles, but it’s always been a vital mineral, especially for thyroid health. Iodine is essential for the production of thyroid hormones that regulate metabolism and energy. Both iodine deficiency and excess can cause thyroid-related issues, so it’s important to maintain balanced levels for optimal health.

The Role of Iodine in Thyroid Function

Iodine is crucial for thyroid hormones, particularly thyroxine (T4) and triiodothyronine (T3), which regulate metabolism and energy. Deficiency can lead to goiter, hypothyroidism, fertility concerns and developmental issues in children. Hypothyroidism symptoms include fatigue, weight gain, and depression.

Iodine Deficiency in North America

Iodine deficiency is rare in the US and Canada due to iodized salt and dietary sources like dairy, seafood, and seaweed. However, individuals on restrictive diets or pregnant women may still be at risk and need to monitor their intake.

The Dangers of Excess Iodine

Excess iodine can disrupt thyroid function, leading to hyperthyroidism, hypothyroidism, or autoimmune thyroid diseases like Hashimoto’s and Graves’ disease. The thyroid has a narrow range for iodine intake, so both deficiency and excess can cause problems.

Dietary Sources of Iodine

Common sources include:

  • Iodized salt
  • Dairy products
  • Fish and seafood
  • Seaweed
  • Commercial bread

While iodine is found in many foods, it’s important to balance intake to avoid overconsumption.

The Importance of Practitioner Guidance

Given iodine’s narrow therapeutic range, it’s crucial to consult with a healthcare provider to determine whether you need supplementation. Your provider can help assess your iodine needs and prevent complications related to deficiency or excess.

Conclusion

Iodine is essential for thyroid health, but balance is key. Ensure adequate iodine intake through food sources and work with a healthcare provider to avoid potential risks associated with both deficiency and excess.

For further reading, explore these scientific studies: