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Vitamin C Increases Fertility and Chances of Getting Pregnant by 25%

Vitamin C Increases Fertility and Chances of Getting Pregnant by 25%


According to a study published in Fertility and Sterility “A moderate amount of supplemental vitamin C improves hormone levels and increases fertility.”

150 women with luteal phase defect were enrolled in the current study. The participants were given 750mg of vitamin C per day or no treatment at all.

The group receiving vitamin C had an increase in progesterone levels, while the women receiving no treatment had no change in progesterone.

Also, the pregnancy rate was significantly higher in the vitamin C group: 25% within six months, while only 11% of the untreated women became pregnant in the same time period.


This study has proven once again the effects of a nutritionally abundant diet. To see this type of success rates that are comparable to IVF from a key nutrition is awesome.

Which vitamin C should I take?
I am always in favor of food-based supplementation. Supplements that are made from foods instead of synthetically manufactured have a higher absorption rate and are digested better. My favorite vitamin C is made from Acerola Cherries. I purchase it in a powdered form and mix it in my smoothies or with water. You can also find it in capsules or chewable tablets.

Which foods contain vitamin C?
Cherries, oranges, red and green peppers, lemons, spinach, and strawberries are some of the foods most potent in vitamin C.

Can I get too much vitamin C?
YES! You can consume too much vitamin C if you are using a supplemental vitamin C. When preparing to conceive, be careful not to take more than 750-1000mg of vitamin C a day. With higher dosages of vitamin C, the body may get acidic. An acidic environment in the body is unfriendly to sperm and implantation of the fertilized egg. So in this case, more is not better.

Final Notes: I want to emphasize the importance of eating a natural and balanced diet that is dense in nutrients and color.


  • Henmi, H., MD, Endo, T., MD, Kitajima, Y., MD, Manase, K., MD, Hata, H., MD, & Kudo, R., MD. (n.d.). Effects of ascorbic acid supplementation on serum progesterone levels in patients with a luteal phase defect. Retrieved from

Hethir Rodriguez - Certified Herbalist, Nutritionist, Birth Doula

Hethir Rodriguez is the Founder of Natural Fertility She is a Certified Herbalist, has a bachelors in Nutrition Sciences and is a trained Birth Doula and Massage Therapist. As a Natural Fertility Specialist, Hethir is dedicated to helping to provide a source for high quality, research based information and support for those on their journey to parenthood.

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  1. Hi! I was wondering if sugarless vitamin c would work the same way?

    • Dear Jess,

      It is my understanding that sugarless vitamin C should work in the same way, given by sugarless there are not “sugar substitutes” added in place of naturally-occurring sugars.

  2. Hello! My husband and I are trying to conceive for the first time. My period is mildly irregular so I read Vitex would help and vitamin C. I got both today, and my vitamin c has rose hips in it, is that okay when trying to conceive?
    Thank you!!

  3. I tried this last month after 10 months of TTC with no success with a short luteral phase. I took 750 mg at the beginning of my cycle. This month I got my BFP! First month of vitamin C and it worked for me!

  4. does this only to apply to the woman or to the man as well….we’ve both been taking 1000mg vitaman C slow release daily….should we go off completely? do you think this has been affecting us trying to conceive?

  5. Update 2014 – We are back! We have been away for a while and we sure have missed all of your wonderful questions and thoughts on our articles. Moving forward, one of our staff herbalists will be here to respond to comments! We look forward to connecting with our readers once again!

  6. I take a lot of Vit c from fruits and occasionally supplemental vit c, but i was told by my gynea that excess Vit c can dry up the cervical mucus thereby preventing pregnancy as sperm is not able to swim up to the eggs. What dosage do you recommend as i also have low progesterone. Please advise being trying to conceive for ages, am loosing it.thanks Teegal

    • Hi Taiyelollu,

      60-100mg a day is the suggested supplementation. You would not want to take high amounts of vitamin C except when directed to do so by a health care practitioner for a health condition.

      Best Wishes,