How Vitamin D Helps Women Get Pregnant – Sunshine and Pregnancy

green fertilityResearch shows a lovely, relaxing way to improve your chances of getting pregnant: Vitamin D and sunshine! Here’s how sun exposure could be a key factor in increasing fertility for both men and women.

“For decades – or longer – gynecologists and even some fertility experts have been advising couples to ‘take a vacation’ if they want to get pregnant,” says Colette Bouchez, author of Green Fertility. “The idea behind the suggestion was to reduce stress – and it was often the first line of defense for couples suffering with ‘unexplained’ infertility. Now, however, new research shows there may be an even stronger scientific reason why so many couples get pregnant when they go on vacation – particularly to a warm sunny climate.  The connecting link between sunny vacations and pregnancy is none other than Vitamin D!”

For more tips from Bouchez, read Green Fertility: Nature’s Secrets For Making Babies: A Powerful Proven Plan To Help You Get Pregnant Fast & Have a Healthy Baby.

And, here’s how she describes the research about Vitamin D, sunshine, and getting pregnant…

Get Pregnant Faster With Vitamin D and Sun Exposure

“One of the primary ways in which the body makes vitamin D is via exposure to sunlight. And now research shows that vitamin D appears to have a direct impact on ovarian function, as well as hormone production – and that can make a huge difference if you are trying to get pregnant,” says Dr. Niels Lauersen, author of Getting Pregnant: What You Need To Know Right Now.

But Lauersen says it’s not just women alone whose fertility may prosper from sunlight. Men are affected as well.

In one very early study on sunlight and male fertility,  a group of researchers measured levels of testosterone ( the male hormone key to sperm production)  in a group of men both before  and after exposure to sunlight.  They then exposed the men’s chests to daily UVB light for five days – each day just long enough to cause a slight reddening of the skin.

At the end of five days they remeasured testosterone levels. They found that exposure to the UVB light ( the same kind you get from the sun) caused a whopping 120% increase in testosterone production!

More importantly,  they remeasured the levels again eight days later – during which the men got no UVB exposure – and their testosterone levels once again dropped down to pre-testing level. Since testosterone plays such a key role in sperm growth and development, it’s easy to see how spending time in the sun may actually make some men more fertile.

And, epidemiologic data shows that in countries where the latitude is the highest and sun exposure varies dramatically during the year, researchers found conception rates were consistently higher in late summer ( following a season in the sun) and birth rates highest the following spring.

Protect your skin from the sun – even if you’re trying to get pregnant

Of course it’s still very important to protect your skin from extended sun exposure. Remember, it’s sunlight and not sun burn that may increase fertility, so wearing sunscreen should still be a vital part of your health protection strategy.  That said, recent research suggests that up to 20 minutes a day of unprotected sun exposure is a healthy way to increase vitamin D levels – and is not likely to cause you any serious harm, so keep that in mind when planning your time out doors

A vacation in the sun could help you get pregnant, but there is no guarantee.  However, if you combine the romance of the moonlight with the power of vitamin D from the sun….it could happen!

For more fertility tips, read How to Get Pregnant – 5 Most Important Tips From the NIH.

If you have any questions or thoughts about getting pregnant faster with sun exposure, comment below.

Visit Bouchez at – a great source  for doctor-approved pregnancy and fertility resources and information.

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4 thoughts on “How Vitamin D Helps Women Get Pregnant – Sunshine and Pregnancy”

  1. Cara, thank you for clarifying that the sun, vitamin D, and getting pregnant aren’t necessarily a cause-and-effect relationship. It’s never that easy, is it? Imagine just being able to lie in the sun and get pregnant 🙂

  2. Cara | Get Pregnant Naturally

    New research in this field still hasn’t been able to demonstrate a cause and effect relationship between vitamin D levels and fertility. But there are many other known health benefits of getting enough vitamin D, and getting our levels checked should definitely be part of preparations for a healthy pregnancy.

    Nice blog, Laurie!

  3. By the end of the pregnancy, average weight gain (for the average woman — but not all women are average!) is 24 pounds.

    The amount of weight a woman gains depends on how much she weighed to begin with.

    Good luck with your assignment, Adonia!

  4. I am using this for a health assignment, but how much weight can a pregnant woman gain over the 9 months of pregnancy?