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Iodine in pregnancy
Two hundred micrograms a day, up from 150 — a third more, and one of the largest pregnancy increases in the table. The reason is blunt: for the first months, fetal brain development runs entirely on the mother thyroid hormone.
EFSA-Hinweis zu dieser Zeile:um ein Drittel angehoben für die fetale Hirnentwicklung
Das sind veröffentlichte Populationsreferenzwerte, keine Diagnose und kein Rezept. Eine Referenzaufnahme beschreibt, was eine gesunde Gruppe abdeckt; sie kann Ihren eigenen Status nicht sagen, und keine Seite kann das. Schwangerschaft, chronische Krankheit, Arzneimittel und Malabsorption ändern das Bild — diese Fragen zu Arzt, Hebamme, Apotheke oder Ernährungsberatung.
The timing is the whole argument
The fetal thyroid does not begin producing hormone until partway through pregnancy. Until then, every bit of thyroid hormone reaching the developing brain comes from the mother, and thyroid hormone is built around iodine atoms. Maternal iodine supply in early pregnancy is therefore an input to fetal neurodevelopment in a very direct sense.
The window opens before most women know they are pregnant, which is the same structural problem as with folic acid. It is one reason iodine sufficiency is treated as a matter for women of childbearing age generally, not only for those already pregnant.
Why this is a live issue in the Nordic and Baltic countries
Iodine intake in this region has been a recurring public-health concern, and women of childbearing age have repeatedly been the group closest to the line. The mechanisms are ordinary. Sea salt and rock salt are usually not iodised, so the shift away from iodised table salt removes iodine. Salt-reduction advice, which is correct on its own terms, reduces the vehicle. And dairy, another significant carrier, is often reduced or replaced without a fortified substitute.
None of that is an argument for eating more salt. It is an argument for buying iodised salt when you buy salt, and for knowing where else your iodine comes from.
Where it comes from, and the one to avoid
Iodised salt, milk and dairy, sea fish and eggs are the practical sources in this region. The site food database does not carry iodine values, so this page describes sources rather than ranking them — inventing numbers would be worse than leaving the table out.
Seaweed is the exception that needs a warning rather than a recommendation. Kelp products can carry thousands of micrograms per gram, enough to exceed the 600 microgram adult upper level many times over in a single serving, and both too little and too much iodine disturb the thyroid. Kelp supplements are not a sensible way to cover pregnancy iodine.
This one belongs with your midwife
Thyroid function in pregnancy is monitored clinically where there is reason to, and thyroid disease in pregnancy is managed by specialists. Iodine supplementation in pregnancy is recommended in some countries and handled through diet in others, and the right answer depends on the local food supply as much as on the individual.
Ask at your antenatal appointment. It is a one-sentence question with a locally correct answer, which is more than any reference table can give you.
Wie das mit jeder anderen Gruppe vergleicht
| Gruppe | Referenzwert | Typ | Hinweis |
|---|---|---|---|
| Männer 19–50 | 150 µg | AI | |
| Frauen 19–50 | 150 µg | AI | |
| Männer 51 und älter | 150 µg | AI | |
| Frauen 51 und älter | 150 µg | AI | |
| Erwachsene 65 und älter | 150 µg | AI | |
| Schwangerschaft | 200 µg | AI | um ein Drittel angehoben für die fetale Hirnentwicklung |
| Stillen | 200 µg | AI | angehoben, um zu decken, was in der Milch geht |
Gewöhnliche Lebensmittel gegenthe 200 µgZahl fürschwangerschaft
Der Lebensmittelzusammensetzungs-Schnappschuss hinter dieser Site trägt keinejodWerte, daher gibt es auf dieser Seite keine berechnete Tabelle. Zahlen zu erfinden wäre schlimmer, als sie wegzulassen;die Abschnitte oben beschreiben stattdessen, woher es kommt.
Der ganze Nährstoff, nicht nur diese Gruppe
The JodReferenzaufnahmeseite trägt die volle Alters- und Geschlechtstabelle, das obere Niveau und was der Werttyp bedeutet.
Verwandte Seiten
Iron in pregnancy
Dieselbe Lebensphase, ein anderer Nährstoff.
Folate in pregnancy
Dieselbe Lebensphase, ein anderer Nährstoff.
Vitamin D in pregnancy
Dieselbe Lebensphase, ein anderer Nährstoff.
Quellen:EFSA-Referenzwerte für die Nährstoffzufuhr · Verordnung (EU) Nr. 1169/2011, Anhang XIII · USDA FoodData Central SR Legacy (Lebensmittelzusammensetzung) · Wissenschaftliche Stellungnahme der EFSA zu Referenzwerten für Jod (2014) · Leitlinie der Weltgesundheitsorganisation zu Jodmangel und Salzjodierung· geprüft2026-09-06
Häufige Fragen
How much iodine in pregnancy?
EFSA adequate intake rises from 150 micrograms a day to 200 micrograms in pregnancy and while breastfeeding.
Why does iodine matter so much in early pregnancy?
Because the fetal thyroid does not work for the first months, so early fetal brain development depends entirely on maternal thyroid hormone, which is built around iodine.
Should I take a kelp supplement for iodine in pregnancy?
No. Kelp products can contain enough iodine in one serving to exceed the adult upper level several times over, and excess iodine disturbs the thyroid. Discuss iodine with your antenatal care instead.
Machen Sie aus einem Referenzwert Ihre eigene Woche
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