{"id":15472,"date":"2026-03-12T17:36:13","date_gmt":"2026-03-12T16:36:13","guid":{"rendered":"https:\/\/kinderwunschaerztin.de\/vitamin-d-and-fertility\/"},"modified":"2026-10-06T15:15:28","modified_gmt":"2026-10-06T14:15:28","slug":"vitamin-d-and-fertility","status":"publish","type":"post","link":"https:\/\/kinderwunschaerztin.de\/en\/vitamin-d-and-fertility\/","title":{"rendered":"Vit\u00adamin D and Fer\u00adti\u00adli\u00adty"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Few vit\u00adamins are dis\u00adcus\u00adsed as exten\u00adsi\u00adve\u00adly and con\u00adtro\u00adver\u00adsi\u00adal\u00adly as vit\u00adamin D. It is a fasci\u00adna\u00adting vit\u00adamin becau\u00adse it can be obtai\u00adned through diet on the one hand, and on the other hand, a lar\u00adge por\u00adti\u00adon is pro\u00addu\u00adced by the body its\u00adelf in the skin through sun expo\u00adsure (UVB light). Vit\u00adamin D is found in only a few foods (e.g., fat\u00adty sea fish, organ meats, and to a les\u00adser ext\u00adent in egg yolk and mar\u00adga\u00adri\u00adne), so only a small amount, appro\u00adxi\u00adm\u00adate\u00adly 10\u201320%, can be obtai\u00adned through diet, while a much lar\u00adger por\u00adti\u00adon must be pro\u00addu\u00adced by the body its\u00adelf through sun expo\u00adsure. Unfort\u00adu\u00adna\u00adte\u00adly, in our lati\u00adtu\u00addes, this is only pos\u00adsi\u00adble from appro\u00adxi\u00adm\u00adate\u00adly March to Octo\u00adber, and vit\u00adamin D defi\u00adci\u00aden\u00adcy is quite com\u00admon. For women or cou\u00adples try\u00ading to con\u00adcei\u00adve, the ques\u00adti\u00adon often ari\u00adses as to what role vit\u00adamin D plays in fer\u00adti\u00adli\u00adty.   <\/p>\n\n<ul class=\"wp-block-list is-style-toc\">\n<li id=\"warum_vitamin-d\"><a href=\"#warum_vitamin_d\" id=\"#warum_vitamin-d\">Why is vit\u00adamin D important for health?<\/a><\/li>\n\n\n\n<li id=\"vitamin_d_bestimmen\"><a href=\"#typical\"><\/a><a href=\"https:\/\/kinderwunschaerztin.de\/en\/signs-of-an-ectopic-pregnancy-in-the-5th-week-of-pregnancy\/#symptome_eileiterschwangerschaft\"><\/a><a href=\"#vitamin_d_bestimmen\">How can vit\u00adamin D levels be deter\u00admi\u00adned?<\/a><\/li>\n\n\n\n<li id=\"einnahme_vitamin_d\"><a href=\"#einnahme_vitamin_d\">What are the recom\u00admen\u00adda\u00adti\u00adons for sup\u00adple\u00admen\u00adta\u00adti\u00adon?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/kinderwunschaerztin.de\/en\/signs-of-an-ectopic-pregnancy-in-the-5th-week-of-pregnancy\/#diagnostik\"><\/a><a href=\"#vitamin_d_fruchtbarkeit\" id=\"#vitamin_d_fruchtbarkeit\">What influence does vit\u00adamin D have on fer\u00adti\u00adli\u00adty and the chan\u00adce of beco\u00adming pregnant?<\/a><\/li>\n\n\n\n<li><a href=\"#faqs\">Fre\u00adquent\u00adly asked ques\u00adti\u00adons about vit\u00adamin D and fer\u00adti\u00adli\u00adty<\/a><\/li>\n<\/ul>\n\n<h3 class=\"gb-text\" id=\"warum_vitamin_d\">Why is vit\u00adamin D important for health?<\/h3>\n\n<p class=\"wp-block-paragraph\">Vit\u00adamin D is invol\u00adved in many meta\u00adbo\u00adlic pro\u00adces\u00adses and in the regu\u00adla\u00adti\u00adon of a multi\u00adtu\u00adde of genes. The\u00adre are num\u00ade\u00adrous stu\u00addies show\u00ading a cor\u00adre\u00adla\u00adti\u00adon bet\u00adween vit\u00adamin D levels and the occur\u00adrence of chro\u00adnic dise\u00ada\u00adses, auto\u00adim\u00admu\u00adne dise\u00ada\u00adses, can\u00adcer, and car\u00addio\u00advas\u00adcu\u00adlar dise\u00ada\u00adses. Howe\u00adver, a cau\u00adsal rela\u00adti\u00adonship has not yet been demons\u00adtra\u00adted.  <\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"gb-text\" id=\"vitamin_d_bestimmen\">How can vit\u00adamin D levels be deter\u00admi\u00adned?<\/h3>\n\n<p class=\"wp-block-paragraph\" id=\"message\">Vit\u00adamin D levels can be mea\u00adsu\u00adred in the blood. Accor\u00adding to inter\u00adna\u00adtio\u00adnal cri\u00adte\u00adria, a value  12 ng\/ml indi\u00adca\u00adtes vit\u00adamin D defi\u00adci\u00aden\u00adcy, and a value  20 ng\/ml indi\u00adca\u00adtes sub\u00adop\u00adti\u00admal sup\u00adp\u00adly. <\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"gb-text\" id=\"einnahme_vitamin_d\">What are the recom\u00admen\u00adda\u00adti\u00adons for sup\u00adple\u00admen\u00adta\u00adti\u00adon?<\/h3>\n\n<p class=\"wp-block-paragraph\" id=\"message\">The Ger\u00adman Nut\u00adri\u00adti\u00adon Socie\u00adty recom\u00admends that adults take 20 \u00b5g of vit\u00adamin D per day. In many sup\u00adple\u00adments, the dosa\u00adge is given in units, which cor\u00adre\u00adsponds to 800 I.U. Howe\u00adver, this only appli\u00ades under the con\u00addi\u00adti\u00adon that the body does not pro\u00addu\u00adce its own vit\u00adamin D. <\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"gb-text\" id=\"vitamin_d_fruchtbarkeit\">What influence does vit\u00adamin D have on fer\u00adti\u00adli\u00adty and the chan\u00adce of beco\u00adming pregnant?<\/h3>\n\n<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" class=\"dl-img-left gb-media-3554a67f\" alt=\"Pregnant woman forming a heart with her hand on her belly\" title=\"Pregnancy (2)\" src=\"https:\/\/kinderwunschaerztin.de\/wp-content\/uploads\/Schwangerschaft-2.jpg\" srcset=\"https:\/\/kinderwunschaerztin.de\/wp-content\/uploads\/Schwangerschaft-2.jpg 800w, https:\/\/kinderwunschaerztin.de\/wp-content\/uploads\/Schwangerschaft-2-300x188.jpg 300w, https:\/\/kinderwunschaerztin.de\/wp-content\/uploads\/Schwangerschaft-2-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\">\n\n<p class=\"wp-block-paragraph\">Inte\u00adres\u00adt\u00adingly, pregnan\u00adcy rates in our nor\u00adt\u00adhern hemi\u00adsphe\u00adre fluc\u00adtua\u00adte depen\u00adding on the sea\u00adsons. Pregnan\u00adcy rates are hig\u00adhest in sum\u00admer and autumn, the sea\u00adsons with the hig\u00adhest vit\u00adamin D con\u00adcen\u00adtra\u00adti\u00adons (Mus\u00adco\u00adgi\u00aduri et al. 2017). <\/p>\n\n<p class=\"wp-block-paragraph\">A num\u00adber of stu\u00addies in high-ran\u00adking jour\u00adnals descri\u00adbe a posi\u00adti\u00adve cor\u00adre\u00adla\u00adti\u00adon bet\u00adween pregnan\u00adcy and birth rates and vit\u00adamin D levels. A lar\u00adge review that exami\u00adned 11 stu\u00addies with a total of over 2,700 women show\u00aded that in IVF\/ICSI tre\u00adat\u00adment, the chan\u00adces of pregnan\u00adcy and live birth rates are lower in women with low vit\u00adamin D levels than in women with ade\u00adqua\u00adte vit\u00adamin D sup\u00adp\u00adly (Chu et al. 2018). <\/p>\n\n<p class=\"wp-block-paragraph\">Ano\u00adther stu\u00addy in Eng\u00adland exami\u00adned vit\u00adamin D levels and live birth rates after assis\u00adted repro\u00adduc\u00adtion in 500 women. 50% of the women had vit\u00adamin D defi\u00adci\u00aden\u00adcy, 30% had low vit\u00adamin D levels bet\u00adween 20\u201329 \u00b5g\/l, and only 16% had suf\u00adfi\u00adci\u00adent\u00adly high vit\u00adamin D levels of &gt; 30 \u00b5g\/l. The results show\u00aded that 24% of women with low, 27% of women with medi\u00adum vit\u00adamin D, and 34% of women with a value &gt; 30 \u00b5g\/l had a live birth (Chue et al. 2019).  <\/p>\n\n<p class=\"wp-block-paragraph\">Addi\u00adtio\u00adnal stu\u00addies show a posi\u00adti\u00adve cor\u00adre\u00adla\u00adti\u00adon bet\u00adween AMH levels, ova\u00adri\u00adan reser\u00adve, and vit\u00adamin D levels.<\/p>\n\n<p class=\"wp-block-paragraph\">Com\u00admon con\u00addi\u00adti\u00adons asso\u00adcia\u00adted with fer\u00adti\u00adli\u00adty, such as PCOS and endo\u00adme\u00adtrio\u00adsis, are also lin\u00adked to low vit\u00adamin D levels.<\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"dl-grid--33-67 dl-blocks--faq\" id=\"faqs\">\n<div>\n<h2 class=\"gb-text\" id=\"faqs\">Fre\u00adquent\u00adly Asked Ques\u00adti\u00adons About Vit\u00adamin D and Fer\u00adti\u00adli\u00adty<\/h2>\n<\/div>\n\n\n\n<div>\n<div class=\"gb-accordion dl-accordion\">\n<div class=\"gb-accordion__item gb-accordion__item-b101c92c\">\n<div role=\"button\" tabindex=\"0\" class=\"gb-accordion__toggle\" id=\"gb-accordion-content-0edea186\">\n<h3 class=\"gb-text\"><strong>What sym\u00adptoms occur with vit\u00adamin D defi\u00adci\u00aden\u00adcy?<\/strong><\/h3>\n\n\n\n<span class=\"gb-accordion__toggle-icon\"><span class=\"gb-accordion__toggle-icon-open\"><\/span><span class=\"gb-accordion__toggle-icon-close\"><\/span><\/span>\n<\/div>\n\n\n\n<div class=\"gb-accordion__content\" id=\"gb-accordion-content-3e45d344\">\n<div>\n<p class=\"wp-block-paragraph\">Tho\u00adse affec\u00adted fre\u00adquent\u00adly report fati\u00adgue, exhaus\u00adti\u00adon, mus\u00adcle or bone pain, and increased sus\u00adcep\u00adti\u00adbi\u00adli\u00adty to infec\u00adtions. Sin\u00adce the\u00adse sym\u00adptoms are non\u00adspe\u00adci\u00adfic, a blood test pro\u00advi\u00addes the most cla\u00adri\u00adty. <\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-accordion__item gb-accordion__item-5034b1a2\">\n<div role=\"button\" tabindex=\"0\" class=\"gb-accordion__toggle\" id=\"gb-accordion-content-0edea186\">\n<h3 class=\"gb-text\"><strong>Can vit\u00adamin D defi\u00adci\u00aden\u00adcy pre\u00advent pregnan\u00adcy?<\/strong><\/h3>\n\n\n\n<span class=\"gb-accordion__toggle-icon\"><span class=\"gb-accordion__toggle-icon-open\"><\/span><span class=\"gb-accordion__toggle-icon-close\"><\/span><\/span>\n<\/div>\n\n\n\n<div class=\"gb-accordion__content\" id=\"gb-accordion-content-a10d1099\">\n<div>\n<p class=\"wp-block-paragraph\">Vit\u00adamin D defi\u00adci\u00aden\u00adcy is usual\u00adly not the sole reason for fail\u00adure to con\u00adcei\u00adve, but it can indi\u00adrect\u00adly affect fer\u00adti\u00adli\u00adty. It is the\u00adr\u00ade\u00adfo\u00adre advi\u00adsa\u00adble to deter\u00admi\u00adne the level (25-OH-vit\u00adamin D) in the blood rather than taking high doses wit\u00adhout con\u00adfir\u00adma\u00adti\u00adon. <\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-accordion__item gb-accordion__item-df054a9c\">\n<div role=\"button\" tabindex=\"0\" class=\"gb-accordion__toggle\" id=\"gb-accordion-content-0edea186\">\n<h3 class=\"gb-text\"><strong>How much vit\u00adamin D should one take for fer\u00adti\u00adli\u00adty?<\/strong><\/h3>\n\n\n\n<span class=\"gb-accordion__toggle-icon\"><span class=\"gb-accordion__toggle-icon-open\"><\/span><span class=\"gb-accordion__toggle-icon-close\"><\/span><\/span>\n<\/div>\n\n\n\n<div class=\"gb-accordion__content\" id=\"gb-accordion-content-e6526a69\">\n<div>\n<p class=\"wp-block-paragraph\">The Ger\u00adman Nut\u00adri\u00adti\u00adon Socie\u00adty recom\u00admends that adults take 20 \u00b5g of vit\u00adamin D per day (equi\u00adva\u00adlent to 800 I.U.) when the body does not pro\u00addu\u00adce its own vit\u00adamin D. The dosa\u00adge that is appro\u00adpria\u00adte for you when try\u00ading to con\u00adcei\u00adve should first be deter\u00admi\u00adned medi\u00adcal\u00adly through blood test\u00ading.  <\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"gb-accordion__item gb-accordion__item-960a5fe1\">\n<div role=\"button\" tabindex=\"0\" class=\"gb-accordion__toggle\" id=\"gb-accordion-content-0edea186\">\n<h3 class=\"gb-text\"><strong>Why is it some\u00adti\u00admes said \u201cno vit\u00adamin D\u201d during pregnan\u00adcy?<\/strong><\/h3>\n\n\n\n<span class=\"gb-accordion__toggle-icon\"><span class=\"gb-accordion__toggle-icon-open\"><\/span><span class=\"gb-accordion__toggle-icon-close\"><\/span><\/span>\n<\/div>\n\n\n\n<div class=\"gb-accordion__content\" id=\"gb-accordion-content-a6557bf3\">\n<div>\n<p class=\"wp-block-paragraph\">Vit\u00adamin D is not fun\u00adda\u00admen\u00adtal\u00adly pro\u00adhi\u00adbi\u00adted during pregnan\u00adcy, but uncon\u00adtrol\u00adled high doses can adver\u00adse\u00adly affect cal\u00adci\u00adum meta\u00adbo\u00adlism. The\u00adr\u00ade\u00adfo\u00adre, sup\u00adple\u00admen\u00adta\u00adti\u00adon should be dosed and ide\u00adal\u00adly coor\u00addi\u00adna\u00adted with your phy\u00adsi\u00adci\u00adan or mid\u00adwi\u00adfe. <br><br><br><br><br><br><br><br><br><br><br><br><br><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"dl-grid--100 dl-blocks--notes\">\n<div>\n<div class=\"gb-accordion\">\n<div class=\"gb-accordion__item\">\n<div role=\"button\" tabindex=\"0\" class=\"gb-accordion__toggle\" id=\"gb-accordion-toggle-418fd31e\">\n<span class=\"gb-text\">Our Sources<\/span>\n\n\n\n<span class=\"gb-accordion__toggle-icon gb-accordion__toggle-icon-e6e676b0\"><span class=\"gb-accordion__toggle-icon-open\"><\/span><span class=\"gb-accordion__toggle-icon-close\"><\/span><\/span>\n<\/div>\n\n\n\n<div class=\"gb-accordion__content\" id=\"gb-accordion-content-f3b98e9c\">\n<div class=\"gb-element-03a6d77a\">\n<p class=\"wp-block-paragraph\">Mus\u00adco\u00adgi\u00aduri G., Altie\u00adri B., de Ange\u00adlis C., Palom\u00adba S., Pivo\u00adnel\u00adlo R., Colao A., Orio F. Shed\u00adding new light on fema\u00adle fer\u00adti\u00adli\u00adty: The role of vit\u00adamin D. Rev. Endo\u00adcr. Metab. Dis\u00adord. 2017;18:273\u2013283   <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chu J., Gal\u00adlos I., Tobi\u00adas A., Tan B., Eapen A., Coo\u00adma\u00adra\u00adsa\u00admy A. Vit\u00adamin D and assis\u00adted repro\u00adduc\u00adti\u00adve tre\u00adat\u00adment out\u00adco\u00adme: A sys\u00adte\u00adma\u00adtic review and meta-ana\u00adly\u00adsis. Hum. Reprod. 2018;33:65\u201380. <\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Few vit\u00adamins are dis\u00adcus\u00adsed as exten\u00adsi\u00adve\u00adly and con\u00adtro\u00adver\u00adsi\u00adal\u00adly as vit\u00adamin D. It is a fasci\u00adna\u00adting vit\u00adamin becau\u00adse it can be obtai\u00adned through diet on the one hand, and on the other hand, a lar\u00adge por\u00adti\u00adon is pro\u00addu\u00adced by the body its\u00adelf in the skin through sun expo\u00adsure (UVB light). Vit\u00adamin D is found in only \u2026 <a title=\"Vit\u00adamin D and Fer\u00adti\u00adli\u00adty\" class=\"read-more\" href=\"https:\/\/kinderwunschaerztin.de\/en\/vitamin-d-and-fertility\/\" aria-label=\"Read more about Vit\u00adamin D and Fer\u00adti\u00adli\u00adty\">Read more<\/a><\/p>\n","protected":false},"author":6,"featured_media":15473,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[225],"tags":[226],"class_list":["post-15472","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medical-knowledge","tag-tese"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vitamin D and Fertility<\/title>\n<meta name=\"description\" content=\"What role does vitamin D play in fertility? 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