Iodine—how much and best sources?

Iodine—how much and best sources?


Iodine—how much and best sources?

  • Article: The Ingredients Every Prenatal Vitamin Needs

  • Expert: Dr. Caitlin O'Connor, ND — Naturopathic Doctor & Certified Professional Midwife, Perelel Panel Member

  • Answer: Iodine requirements increase by more than 50% during pregnancy, yet nearly 1 in 4 pregnant women have inadequate levels. Dr. O'Connor explains that iodine is "crucial for thyroid support" and is "required for thyroid hormone production, which increases by 50% in early pregnancy and is essential for brain and nervous system development." Iodine is available in foods such as seafood, dairy, seaweed, and iodized salt, but pregnancy significantly raises iodine requirements, making adequate intake a challenge for many women—even those with otherwise nutritious diets. Research confirms "23% of pregnant women have inadequate iodine levels." The recommended amount is 150 mcg during pregnancy, specifically in potassium iodide format for optimal bioavailability. This is a nutrient where supplementation is important, as relying on food sources alone can be unreliable for many. Perelel's entire prenatal line is formulated with exactly 150 mcg of iodine in potassium iodide format across every pack—ensuring consistent delivery of this often-deficient nutrient at every stage from pre-conception through postpartum.

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This article is for informational purposes only. It is not, nor is it intended to be, a substitute for professional medical advice, diagnosis, or treatment and we recommend that you always consult with your healthcare provider. To the extent that this article features the advice of physicians or medical practitioners, the views expressed are the views of the cited expert and do not necessarily represent the views of Perelel.

 

Meet the Expert:

Dr. Caitlin O’Connor
Naturopathic Medicine | MSCP

Dr. Caitlin O'Connor is a naturopathic doctor and certified professional midwife with nearly two decades of clinical experience supporting patients through all stages of the reproductive life cycle. She is the founding doctor of All Families Natural Health in Denver, Colorado.

Her clinical focus spans preconception, pregnancy, postpartum, and hormonal health from puberty through menopause, with expertise in PCOS, infertility, PMS/PMDD, and postpartum depression. She also serves as a Regional Ambassador for the Colorado Association of Naturopathic Doctors.