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Iodine
Iodine: the essential nutrient for your baby's brain and your thyroid
Iodine is essential for the production of thyroid hormones, which regulate the development of the baby's brain and nervous system throughout pregnancy. An iodine deficiency can lead to neurological and psychomotor consequences in children, making it one of the most critical micronutrients in maternity.
According to the Elfe study, more than one in two women does not consume enough iodine. During pregnancy and breastfeeding, requirements increase considerably and it is virtually impossible to meet them through diet alone, making supplementation almost always essential during these periods.
In Jolly Mama food supplements, iodine is provided in the form of potassium iodide, the most bioavailable form, to ensure optimal absorption. In the granolas, iodine comes from naturally iodine-rich seaweeds such as royal kombu, providing an authentic and well-tolerated dietary source.
Origin and description
Iodine is an essential trace element, meaning the body cannot produce it and must obtain it entirely through food or supplementation.
Il est indispensable à la synthèse des hormones thyroïdiennes, la T3 et la T4, qui jouent un rôle central dans la régulation du métabolisme, de la croissance et du développement neurologique, aussi bien chez la maman que chez le bébé.
Son intérêt est particulièrement critique pendant la grossesse et l'allaitement, deux périodes où les besoins augmentent significativement et où un déficit prolongé peut avoir des conséquences durables sur le développement cognitif et psychomoteur de l'enfant. La forme d'iode utilisée, iodure de potassium ou iode organique issu des algues, conditionne directement la biodisponibilité et la tolérance digestive.
Sous forme naturelle, les aliments riches en iode sont les produits de la mer : poissons de mer, fruits de mer, crustacés et algues marines comme le kombu, la dulse ou la nori. Les produits laitiers, notamment le lait et les yaourts, constituent également une source appréciable dans les régimes occidentaux, car les vaches reçoivent souvent des compléments iodés. Les œufs et certains pains fabriqués avec du sel iodé apportent aussi des quantités modestes. L'assimilation de l'iode alimentaire dépend de la forme chimique dans laquelle il se trouve, de la matrice alimentaire et de la présence de goitrogènes, des substances présentes dans certains légumes crucifères qui peuvent interférer avec son absorption en cas de consommation très importante. Les apports via l'alimentation seule restent difficiles à garantir, notamment pour les femmes qui ne consomment pas de produits de la mer régulièrement ou suivent un régime végétalien.
Sous forme de compléments, l'iode se retrouve principalement dans l'iodure de potassium, une forme minérale hautement assimilable utilisée dans les multivitamines et compléments de grossesse, et l'iode organique issu d'algues marines standardisées. L'iodure de potassium est la forme de référence dans une vitamine pour femme enceinte, car sa biodisponibilité est excellente et sa teneur est précisément contrôlable d'un lot à l'autre. Les algues marines, comme le kombu royal utilisé dans les granolas Jolly Mama, apportent une iode naturelle intégrée dans une matrice alimentaire complète, ce qui en fait une source complémentaire appréciable. Il convient de vérifier la traçabilité des algues utilisées, leur origine et leur contrôle en métaux lourds, des critères de qualité essentiels. Les personnes souffrant de troubles thyroïdiens doivent impérativement demander un avis médical avant toute supplémentation en iode.
Products containing it
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Tomato croq
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300g de granola riche en fibres et magnésium
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Choco nut
Coconut chocolate granola for breastfeeding
300g de granola riche en fibres, vitamine C et magnésium
100% bio et naturel
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Baby Bump
Multivitamines DHA grossesse & fertilité
14 nutriments essentiels + DHA + Choline
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Bump essentials
Multivitamines vegan grossesse & fertilité
15 nutriments clés, dont choline et folates hautement biodisponibles
100 % vegan et sans DHA
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£18.92£27.81
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Post Essentials
Post-partum multivitamin supplement
17 nutrients in their best forms
Covers post-birth nutritional needs and reduces fatigue
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£23.17£28.68
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Mama Miso
Organic miso and iodine breastfeeding broth
6 exceptionally high-quality organic and vegan miso broths
Naturally high iodine content with red miso
PregnancyPost-partumfrom
£26.38£36.51
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4,5/5
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Mama Miso single unit
Organic miso and iodine breastfeeding broth
6 organic and vegan miso broths of exceptional quality
Naturally high iodine content with red miso
£6.95
Why is iodine an essential ally throughout your maternity journey?
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Baby's brain development
Contributes to the production of thyroid hormones, which regulate the neurological and psychomotor development of the foetus throughout pregnancy.
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Maternal thyroid function
Supports the mother's thyroid function, whose activity increases from the very first weeks of pregnancy to meet the baby's growing needs.
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Prevention of neurological deficiencies in children
An adequate intake contributes to preventing neurological deficits, developmental delays and cognitive disorders associated with iodine deficiency during pregnancy.
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Maintaining energy and vitality
Les hormones thyroïdiennes, dont la synthèse dépend de l'iode, régulent le métabolisme énergétique de la maman, contribuant à maintenir un bon niveau de vitalité pendant la grossesse et l'allaitement.
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Support during breastfeeding
Iodine passes into breast milk and continues to support the neurological development of the infant after birth, making breastfeeding a period during which iodine needs remain high (discover our breastfeeding supplements)
How does it work? (The science bit)
Iodine is absorbed in the small intestine, then taken up very selectively by the thyroid gland, which uses it to synthesise two essential hormones: thyroxine (T4) and triiodothyronine (T3). These hormones then circulate throughout the body and act on almost every cell, regulating basal metabolism, body temperature, cell growth, and above all the development of the nervous system. During pregnancy, the maternal thyroid must produce more hormones to meet both its own needs and those of the foetus, whose thyroid does not become functional until around the second trimester. Before this point, it is entirely the mother who supplies the thyroid hormones needed for the baby's brain development, making her iodine intake doubly critical.
In the event of prolonged iodine deficiency during pregnancy, the maternal thyroid may begin to enlarge to compensate, which can lead to a postpartum goitre. But the most concerning consequences affect the baby: iodine deficiencies during foetal life are associated with neurological disorders, psychomotor delays, and a reduction in cognitive abilities that may persist into childhood. Since more than one in two pregnant women has insufficient intake, supplementation via highly bioavailable sources such as potassium iodide represents a particularly important nutritional prevention measure throughout pregnancy and breastfeeding.
Your questions, our answers.
Iodine is essential for the production of thyroid hormones, which regulate the development of the baby's brain and nervous system from the very first weeks of pregnancy. Prolonged iodine deficiency can lead to neurological consequences in the child, and a thyroid goitre in the mother during the postpartum period. This is why supplementation is almost always recommended during this time.
In the vast majority of cases, no. The Elfe study shows that more than one in two pregnant women in France does not meet her iodine needs through diet alone. During pregnancy and breastfeeding, requirements increase considerably and it is difficult to meet them even with a varied diet that regularly includes seafood. Supplementation is therefore almost always essential.
Potassium iodide is a pure mineral form, highly bioavailable and with precisely controlled content, used in pregnancy supplements to ensure a consistent intake. Iodine derived from seaweed is a natural, food-based source, integrated within a plant matrix, whose content is more variable but which offers the benefits of other associated micronutrients. At Jolly Mama, both forms are used depending on the product, to meet complementary needs.
Les personnes souffrant de troubles thyroïdiens, d'hyperthyroïdie notamment, ne doivent jamais se supplémenter en iode sans avis médical préalable. Un excès d'iode peut aggraver certaines pathologies thyroïdiennes. Demandez l'avis d'un professionnel de santé avant de commencer une supplémentation si vous avez des antécédents thyroïdiens ou si vous prenez un traitement pour la thyroïde.
Plusieurs de nos multivitamines ne contiennent pas d'iode, afin d'être compatibles en cas de troubles de la thyroïde. C'est notamment le cas de nos vitamines ménopause et de notre multivitamines femme.
Yes, iodine passes into breast milk and continues to contribute to the neurological development of the infant after birth. A mother's iodine requirements remain high throughout the entire breastfeeding period, which confirms the importance of maintaining adequate supplementation or dietary intake beyond delivery.
Our other ingredients
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Iron bisglycinate