While there are not many herbs that have been shown to benefit both male and female fertility, Tribulus terrestris is one of them. Tribulus has been used as a traditional fertility herb for years, in both Traditional Chinese Medicine (TCM) and Ayurveda. Traditional healing practices are rooted in time tested results, but scientific researchers in Bulgaria wanted to know how this herb really works. Several studies have been conducted to find out how Tribulus aids fertility, for both men and women.
Studies show the following fertility benefits:
- Increase in sex hormone production in both men and women.
- Increase in serum follicle stimulating hormone (FSH) and estradiol in women.
- Increase in luteinizing hormone (LH) and testosterone in men.
- Improvement in sexual desire in both men and women.
- Overall fertility tonic for the male and female reproductive systems.
- May help to normalize ovulation in women with anovulatory infertility when used prior to ovulation.
- Increase in sperm count, motility, and health.
- Decrease in the effects of antisperm antibodies.
- May aid the male body in producing DHEA to treat erectile dysfunction.
- Protective to liver health; raises glutathione (strong antioxidant) levels which are important to cellular health and immunity.
Tribulus for Male Fertility
The main part of Tribulus that aids in fertility for men, is a constituent called protodioscin. This constituent helps to improve DHEA levels in the male body. In men with erectile dysfunction (ED), it has been found they have low levels of DHEA. Some studies have shown that protodioscin, extracted from Tribulus, increases natural DHEA levels needed for proper erection. Protodioscin is also the main constituent that is responsible for Tribulus’ aphrodisiac qualities. An increase in sexual desire when using this plant has been reported by both men and women.
Antisperm antibodies are when the body has an immune response to semen. This can happen not only to men, but to women as well. Antibodies that are triggered during the immune response work to kill the sperm because the body identifies them as foreign invaders.
Antisperm antibodies may damage healthy sperm, causing poor sperm health.
High numbers of antisperm antibodies in women can make it difficult for the sperm to reach the egg, and/or fertilize the egg. The heightened immune response may also affect conception.
In rare cases, both partners can have antisperm antibodies. In this situation, conception can be very difficult due to a combination of poor sperm health and the woman’s antisperm antibodies attacking the sperm. When the sperm is deposited in the vagina during sexual intercourse, the sperm will then be attacked by the woman’s antisperm antibodies and the sperm that is of poor health will likely be killed. This greatly lowers a couple’s chance of conception.
A Bulgarian study showed that Tribulus can help to reduce the effects of antisperm antibodies. Researchers had couples who tested positive for antisperm antibodies take Tribulus extract and the results of the study showed a 61% increase in conception. An extract of Tribulus terrestris, made into a tablet was given orally to the couples in the study. Men received 1 dose, 3 times a day for 60 days. Women received 1 dose, 3 times a day for 7 days, in the beginning of their cycle (follicular phase), for 6 months. The average time it took for couples to conceive was 5.2 months. This shows that consistency of use is very important!
In addition, TCM and Ayurvedic practitioners have found Tribulus to be very effective in improving sperm count, motility, and morphology when combined with dietary and exercise changes.
Tribulus for Female Fertility
Using Tribulus for Female Fertility and Ovulation Stimulation
One study performed on 36 women who were not ovulating, showed that 67% realized normal ovulation after only 2-3 months of consistent use. The women were given 300-400mg a day, from day 5-14 of their menstrual cycle. 6% became pregnant right away.
A rat study using Tribulus, published in Aug. 2011, showed that Tribulus reduced the number of cysts in the ovaries, in female rats with PCOS. High doses of the extract were administered orally. The treatment showed the ovarian cysts to have significantly decreased, and normal ovarian function was restored. While this was not a human study, it gives scientists more research to use when considering this herb for treatment of PCOS in humans. Many herbalists find Tribulus is an effective, overall female fertility tonic and ovarian stimulant, making it an excellent choice for women with PCOS. This is especially true for women who are not ovulating due to PCOS.
This herb has been found to be wonderful in aiding women with menstrual irregularities, improving timing of the entire menstrual cycle. Tribulus is a nourishing tonic for the female reproductive system as a whole, especially concerning the ovaries.
Tribulus combines well with other herbs. See below for herbal combinations…
The following herbs have been shown safe and effective when combined with Tribulus.
- Lack of libido: Damiana, Maca
- Male Sexual Dysfunction: Korean Ginseng, Saw Palmetto, Maca or Ashwagandha
- Female Tonic for Reproductive Health: Shatavari, Maca
Traditional Suggested Dosage of Tribulus terrestris:
Capsules: 500mg a day to start, working up to 1500mg a day as needed.
Liquid Extract (Tincture): 3-5 mL, 2 times a day.
For Men: Tribulus has been shown best to use all month long, for 3-6 months consistently.
For Women: In general, Tribulus is fine to take all month long. For women with irregular ovulation timing or anovulatory cycles, Tribulus has been shown best to use from day 5-14 of the menstrual cycle, not past ovulation. Tribulus should not be used during pregnancy.
Safety of Tribulus Use: Pregnancy Caution
Many studies have been conducted using Tribulus. No adverse effects have been reported in humans, even with long-term use, with the exception of gastrointestinal upset in some people after 6 months of consistent use. Despite safety, there have been some reports by Traditional Chinese Medicine practitioners warning not to use Tribulus during pregnancy. Tribulus is not recommended for use during pregnancy. A woman who is trying to conceive should only use this herb prior to ovulation. Tribulus has been shown to cause or contribute to cholestsis when used during pregnancy. Cholestasis is a liver disease that only happens during pregnancy. In women who develop cholestasis, the normal flow of bile from the gallbladder is affected by very high levels of pregnancy hormones. The gallbladder holds bile from the liver, aiding in the breakdown of fats for digestion. Cholestasis slows this function down, which may cause bile acids to spill into the blood stream.
Some animal studies have shown Tribulus to cause the locomotor disorder known as staggers in pregnancy. While another showed decreased survival rate of offspring when taken during pregnancy. This is why Tribulus should not be used in pregnancy. Discontinue use of Tribulus once you find out you are pregnant, or if you think you may be pregnant.
– Stanislavov, R., & Nikolova, V. (2000). Tribulus terrestris and human male fertility: I. Immunological Aspects. Comptes Rendus de l’Academie Bulgare des Sciences, 53(10), 107.
Retrieved from: http://articles.adsabs.harvard.edu/full/2000crabs..53j.107s/J000107.000.html
– MacKay, D. (2004). Nutrients and botanicals for erectile dysfunction: examining the evidence. Alternative Medicine Review, 9(1), 4-16.
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– Dehghan, A., Esfandiari, A., & Bigdeli, S. M. (2012). Alternative treatment of ovarian cysts with Tribulus terrestris extract: A rat model. Reproduction in domestic animals, 47(1), e12-e15.
– Romm, Aviva. (2010). Botanical Medicine for Women’s Health. St. Louis, Missouri: Churchill Livingstone.
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– Yance, Donald R., C.N., M.H., R.H.(AHG). (2013) Adaptogens in Medical Herbalism – Elite Herbs and Natural Compounds for Mastering Stress, Aging and Chronic Disease; Tribulus: pp. 603-09. Healing Arts Press.
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