{"id":25837,"date":"2026-03-11T10:55:51","date_gmt":"2026-03-11T09:55:51","guid":{"rendered":"https:\/\/clinicafertia.com\/?p=25837"},"modified":"2026-07-27T18:45:18","modified_gmt":"2026-07-27T16:45:18","slug":"vitamin-d-fertility-implantation-pregnancy","status":"publish","type":"post","link":"https:\/\/clinicafertia.com\/en\/blog\/vitamin-d-fertility-implantation-pregnancy","title":{"rendered":"Vitamin D deficiency and fertility: what you need to know"},"content":{"rendered":"

 <\/p>\n

Many people have vitamin D deficiency (levels below 20 ng\/ml), and this problem is even more common in the African American population. Vitamin D is not only good for bones: it acts on more than 1,000 genes and participates in many processes in the body.<\/p>\n

In addition to helping maintain strong bones, vitamin D also influences:<\/p>\n

– Inflammation<\/p>\n

– The immune system<\/p>\n

– Glucose metabolism<\/p>\n

– Oxidative stress<\/p>\n

Therefore, having good levels is associated with a lower risk of inflammatory and autoimmune diseases such as diabetes, rheumatoid arthritis, and multiple sclerosis.<\/p>\n

 <\/p>\n

And what about fertility?<\/strong><\/h2>\n

In men, adequate vitamin D levels are associated with:<\/p>\n

– Better semen quality<\/p>\n

– Increased sperm motility and improved sperm shape<\/p>\n

– Increased sperm survival<\/p>\n

– Improved fertilisation rates<\/p>\n

In women, especially those with polycystic ovaries:<\/p>\n

– Helps regulate menstrual cycles<\/p>\n

– Improves insulin resistance<\/p>\n

– Promotes ovulation<\/p>\n

– Associated with a higher likelihood of having a healthy baby.<\/p>\n

 <\/p>\n

A recent meta-analysis showed that women with good vitamin D levels are more likely to have a positive pregnancy test and achieve a clinical pregnancy than those with a deficiency.<\/p>\n

Interestingly, this benefit does not seem to be due so much to improving the egg, but rather to the endometrium (the \u201cterrain\u201d where the embryo implants). Vitamin D helps prepare the uterus for implantation by reducing inflammation and the risk of rejection.<\/p>\n

In addition, a study in Sweden involving more than 2,000 women found that those with low vitamin D levels had:<\/p>\n

– More miscarriages<\/p>\n

– More neonatal complications<\/p>\n

And that vitamin D supplementation reduced these risks.<\/p>\n

Maintaining adequate vitamin D levels is important for fertility and for reducing the risk of miscarriages and complications during pregnancy. A deficiency is not a minor issue, and correcting it can make a big difference.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

  Many people have vitamin D deficiency (levels below 20 ng\/ml), and this problem is even more common in the African American population. Vitamin D is not only good for bones: it acts on more than 1,000 genes and participates in many processes in the body. In addition to helping maintain strong bones, vitamin D […]<\/p>\n","protected":false},"author":5,"featured_media":25850,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-25837","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cat-fertility"],"yoast_head":"\nVitamin D and Fertility: Impact on Implantation, Pregnancy and Miscarriage Risk - Cl\u00ednica Fertia<\/title>\n<meta name=\"description\" content=\"Vitamin D plays a key role in fertility, embryo implantation and miscarriage risk. 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