Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Font Size

Women's Vitamin D Levels Play Role in IVF Success?

Small study suggests deficiency in the nutrient might impair fertility

WebMD News from HealthDay

By Robert Preidt

HealthDay Reporter

THURSDAY, Aug. 14, 2014 (HealthDay News) -- Vitamin D deficiency may lower a woman's chances of getting pregnant through in vitro fertilization (IVF), a small study suggests.

Researchers in Italy compared the success of IVF in 154 women with vitamin D deficiency against that of 181 women with sufficient levels of vitamin D.

Those with sufficient vitamin D levels were twice as likely to get pregnant as those with vitamin D deficiency, the team reported Aug. 14 in the Journal of Clinical Endocrinology & Metabolism

Women with sufficient levels of vitamin D were also more likely to have better-quality embryos and had a greater likelihood of an embryo implanting in the uterus, the study found.

According to the study authors, vitamin D levels of 20 to 30 nanograms per milliliter in their blood are considered sufficient or healthy, so the vitamin D-deficient women fell below that threshold.

The study does not prove cause-and-effect, and study co-author Alessio Paffoni stressed in a journal news release that "randomized clinical trials are needed to confirm the findings."

However, Paffoni, of the Ospedale Maggiore Policlinico in Milan, believes that the findings "certainly suggest that low levels of vitamin D contribute to infertility."

He added that, "since vitamin D supplementation is an inexpensive and simple intervention with few relevant side effects, additional study in this area has the potential to markedly influence the way infertility is treated."

Prior research has shown that vitamin D affects fertility in many mammals, the team pointed out.

More than 1 percent of infants born in the United States are conceived through IVF and other types of assisted reproductive technology, according to the U.S. Centers for Disease Control and Prevention.

Vitamin D is nicknamed the sunshine vitamin because the body produces vitamin D when exposed to sunlight. People also get vitamin D through foods like eggs, milk, yogurt, tuna, salmon, cereal and orange juice.

Vitamins and
Lifestyle Guide

Which Nutrients
Are You Missing?

Learn More

Today on WebMD

vitamin rich groceries
Do you know your vitamin ABCs?
St Johns wart
Ease hot flashes and other symptoms.
Are you getting enough?
Take your medication
Wonder pill or overkill?
fruits and vegetables
Woman sleeping
Woman staring into space with coffee

Send yourself a link to download the app.

Loading ...

Please wait...

This feature is temporarily unavailable. Please try again later.


Now check your email account on your mobile phone to download your new app.