TempoLife › Funkcijas › Reference intakes by nutrient, age and sex › pregnancy

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 piezīme par šo rindu:palielināts par trešdaļu augļa smadzeņu attīstībai

Tās ir publicētas populācijas atsauces vērtības, nevis diagnoze un nevis recepte. Atsauces uzņemšanas norma apraksta to, kas nosedz veselas grupas vajadzības; tā nevar pateikt jūsu paša stāvokli, un to nevar neviena lapa. Grūtniecība, hroniskas slimības, medikamenti un uzsūkšanās traucējumi — tie visi maina ainu; ar šiem jautājumiem dodieties pie ārsta, vecmātes, farmaceita vai uztura speciālista.

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.

Kā tas izskatās salīdzinājumā ar visām citām grupām

Parasts ēdiens pretthe 200 µgrādītājsgrūtniecība

Šīs vietnes pamatā esošais pārtikas sastāva momentuzņēmums nesaturjodsvērtības, tāpēc šajā lapā nav aprēķinātas tabulas. Skaitļu izdomāšana būtu sliktāka par to izlaišanu;tā vietā iepriekšējās sadaļas apraksta, no kurienes tas nāk.

Visa uzturviela, ne tikai šī grupa

The Jodsreferences uzņemšanas lapā ir pilna vecuma un dzimuma tabula, augšējais pieļaujamais līmenis un tas, ko nozīmē vērtības veids.

Saistītās lapas

Avoti:EFSA uztura references vērtības · Regula (EU) No 1169/2011, XIII pielikums · USDA FoodData Central SR Legacy (pārtikas sastāvs) · EFSA zinātniskais atzinums par joda uztura atsauces vērtībām (2014) · Pasaules Veselības organizācijas norādījumi par joda deficītu un sāls jodēšanu· pārbaudīts2026-09-06

Bieži uzdotie jautājumi