Iodine Supplementation Before, During and After Pregnancy

Area of Science:

• Public Health Nutrition
• Endocrinology
• Pediatric Development

Background:

• Iodine is essential for thyroid hormone synthesis, critical for fetal and infant development.
• Insufficient iodine intake is a widespread issue, particularly affecting pregnant and breastfeeding women.
• Iodine deficiency poses significant risks to neurocognitive and psychomotor development in children.

Purpose of the Study:

• To review the current iodine status and intake in pregnant and breastfeeding women globally.
• To highlight the risks associated with inadequate iodine intake for maternal and child health.
• To discuss strategies for improving iodine status and prophylaxis.

Main Methods:

• Narrative review of existing literature and studies on iodine status.
• Analysis of current national recommendations for iodine supplementation.
• Discussion of benefits and drawbacks of various iodine intake improvement measures.

Main Results:

• Iodine intake remains insufficient in many populations, including Germany, Europe, and worldwide.
• Pregnancy and lactation are critical periods where iodine needs are elevated.
• Universal salt iodization is identified as the most effective prophylaxis method.

Conclusions:

• Public health bodies must implement and monitor measures for adequate iodine intake.
• Continuous iodine supplementation is recommended for women of reproductive age if salt iodization is not feasible.
• Ensuring sufficient iodine is vital for preventing neurodevelopmental deficits in offspring.