Pueraria mirifica belongs to the Leguminosae family of plants which have a great deal to offer both men and women in terms of sexual health, libido, fertility, and general health. These “pea” plants can work various miracles from helping people quit an addiction easily to improving digestive health through improved peristalsis in the intestines.

Pueraria mirifica: PCOS Weight Loss Herb to Boost Fertility


Pueraria mirifica, also known as Kwao Krua, is an herbal remedy for women’s health issues. It belongs to the family Leguminosae / Fabaceae along with the soy bean, Trifolium pratense, and Mucuna pruriens, all valuable herbs that can be used to treat infertility in men as well as in women.  This family of herbs contains some of the most powerful and least toxic estrogenic herbs that, in some cases, also promote the release of testosterone. Pueraria mirifica has long been used to treat a wide range of different health issues, particularly those pertaining to the aging process, but research also points to its utility as an herbal remedy for infertility.


Though the soy bean contains isoflavones that help many women through the initial stages of menopause, but unfortunately, genetically modified soybeans that have been sprayed with toxins like organophosphates may cause more health problems than they resolve. So, in this discussion, we’ve chosen to focus on the Pueraria mirifica, Mucuna pruriens, and Trifolium pratense members of the Leguminosae / Fabaceae family. 


All of these herbs must be studied carefully in order to find truthful, honest information about them because they all have powerful healing effects on the body that make it possible for people to overcome serious health challenges from addiction and mental health issues to parasites, cancer, dementia, and any disease process that involves overgrowth of tissues (endometriosis or fibroids, for example) or degeneration of the body (autoimmune disease, for example). The members of this bean-family contain nutrient medicines like L-Dopa (as differentiated from prescription L-Dopa which differs in terms of molecular shape as well as content in that prescription L-Dopa also contains carbidopa, which is toxic to brain tissues) and Vitamin B17 / Amygdalin. Mucuna pruriens has been known to reverse the aging process in notable ways such as re-pigmenting gray hair in elderly individuals. So, you can imagine that these herbs are a big threat to Big Pharma. Thus, it isn’t hard to understand why the scientific literature covering the miraculous medicinal utility of these herbs might be hard for the average person to find. 


Strategically, Big Pharma labeled the famous prescription Parkinson’s drug “L-Dopa” after a nutrient with the same name in an effort to confuse the public and cast fear over the amazing little velvet bean plant that can be eaten in soups along with fava beans and other bean and pea plants in the same family that contain similar medicinal agents in various configurations. The public has been programmed to remember the so-called “Levodopa / L-Dopa” prescription drug as a scary medicine that wears off over time, leaving Parkinson’s patients at the brink of death with no possible treatment to bring them back to life. But the real, nutrient Levodopa / L-Dopa is very safe, in fact, and it heals the brain rather than damaging the brain and body. 


Vitamin B17/ Amygdalin is another substance found in bigger and smaller quantities in this family of plants. Trifolium pratense contains the highest quantity of this incredible substance which has literally been made illegal in the U.S. because of its ability to cure 80-90% of all cancers even as a stand-alone treatment. Trifolium pratense, also known as red clover, is a vital ingredient in the herbal cure for cancer known as The Hoxsey Tonic, but this “noxious weed” that grows in practically every American lawn is also a powerful, natural fertility treatment.  It is especially valuable in the treatment of issues regarding endometriosis or fibroids, which are benign cancer-like diseases involving proliferation of tissues.


Pueraria mirifica, of course, is another miracle herb which means that Big Pharma works hard to cover up its usefulness and a substantial amount of funding is likely diverted into making sure the public, especially women, never learn about the true value of this herb. 


Writers like me compete with Big Pharma for airtime online and it’s gotten harder and harder for patients to find real, honest information about natural treatments for sexual health like Pueraria mirifica. And Pueraria mifirica is an herbal contraceptive for women, which means that it is shunned with even greater force by Big Pharma because women’s sexual health and contraceptive choices are another Big Business. Women who discover the potential of an herbal birth control option like Pueraria mirifica are empowered to live normal, healthy lives, after all, rather than being chained to The Machine by health problems caused by the pill and other contraceptive devices like the IUD. 

Pueraria mirifica Safety

It’s important to note that Pueraria mirifica is a woman’s herb. Men should not take Pueraria mirifica because of its high phytoestrogen content. 


That being said, in women, Pueraria has an excellent safety profile when women take it at the proper dose (which we discuss later in this article).  


Medicinal Effects of Pueraria Mirifica 

The tuberous roots of P. mirifica contain 17 compounds with estrogenic activity. These 17 compounds are typically divided into the following three groups:


Group 1: Teniso Flavonoids


  • Genistin
  • Genistein
  • Daidzein
  • Daidzin
  • Kwakhurin
  • Kwakhurin Hydrate
  • Tuberosin
  • Puerarin
  • Mirificin
  • Puemiricarpene


Group 2: Coumestans


  • Coumestrol
  • Mirificoumestan
  • Mirificoumestan glycol
  • Mirificoumestan hydrate


Group 3: 


  • Miroestrol
  • Deoxymiroestrol
  • Isomiroestrol


All of the above substances are phytoestrogens and all of them have a structure similar to that of beta-estradiol. But miroestrol is the substance with the most significant estrogenic activity and it is most similar to estriol, which is considered to be the safest estrogen in humans. 


Pueraria mirifica is an herb that is famous for its ability to increase breast size in women, but this herb contains powerful phytoestrogens that can also act as a natural herbal contraceptive and an herbal alternative to birth control pills. The pueraria plants tend to normalize blood sugar levels and indeed, Kudzu (another member of the Leguminosae / Fabaceae family) is an herb that is hugely beneficial in overcoming not just sugar addiction but also alcohol addiction via its action on normalizing blood sugar levels. As such, research has shown that the pueraria plants such as Kudzu, can be used to naturally boost weight loss and reduce body mass index. Of special note is Kudzu’s ability to reduce visceral body fat, or the fat surrounding the organs. Pueraria mirifica also promotes weight loss naturally (unlike prescription birth control pills) which, in turn, can benefit women who suffer from PCOS and the fertility problems associated with this disease. When combined with Lugol’s iodine therapy, Pueraria mirifica and the other Leguminosae plants have a lot to offer in terms of women’s sexual health and fertility in particularly.

Pueraria mirifica as an Herbal Contraceptive


Pueraria mirifica is an herb that originated in Burma and Thailand. In female Macaca fascicularis monkeys, P. mirifica caused a lengthening of the menstrual cycle with total disappearance of menstruation in monkeys that were treated with 1000 mg of Pueraria mirifica daily. The menstrual cycle length increased substantially, however, even in monkeys that were treated with 10 mg and 100 mg of Pueraria mirifica daily.


In addition to its estrogenic effects, in this particular study, Pueraria mirifica also lowered: 


  • Follicle Stimulating Hormone 
  • Luteinizing Hormone 
  • Estradiol
  • Progesterone, and 
  • Irinhibin  


Higher doses of Pueraria mirifica exerted a more pronounced effect on lowering the above listed hormones in monkeys. Changes in the length of the menstrual cycle and hormone levels in monkeys recovered after treatment with Pueraria mirifica at 10 mg per day and at 100 mg per day, but the monkeys treated with 100 mg per day but monkeys treated with 1000 mg per day apparently did not recover normal menstruation after treatment. Monkeys are smaller than humans, though so this dosing strategy would be different for humans.


Studies on Pueraria mirifica have yielded contradictory results in terms of its function as a natural contraceptive for women. A different study involving both rats with ovaries and rats without ovaries showed the following hormone levels increased significantly during treatment:


  • Testosterone
  • Follicle Stimulating Hormone
  • Luteinizing Hormone
  • Prolactin
  • Growth Hormone 


This study showed that isoflavones in Pueraria mirifica can sometimes increase estrogen levels (as in the rats without ovaries who needed more estrogen) by increasing Gonadotropic-Releasing Hormone. In rats that still had their ovaries, Pueraria mirifica decreased estrogen levels. 


This effect on estrogen levels wherein the estrogen levels may be either increased or decreased by Pueraria mirifica depending on the animal’s need can be explained by looking at scientific studies on Pueraria mirifica in post-menopausal applications. While research into the use of Pueraria mirifica for contraception in menstruating women of child-bearing age are contradictory and, dare I say, scary– research into the use of Pueraria mirifica as an herbal remedy for menopause symptoms is fairly well-developed and easy to understand. Studies into Pueraria mirifica for menopause regularly mentions the fact that P. mirifica is a Selective Estrogen Receptor Modulator that selectively binds to estrogen receptors to act as either an agonist that promotes estrogens binding to the receptors or an as antagonist that prevents estrogens from binding to the receptors depending on the needs of the study participant. 

Miroestrol: Natural Estrogen Replacement


Miroestrol is the substance that tends to get the most attention as a singularly important substance in Pueraria mirifica because it is rare to find a plant that contains such high levels of estriol phytoestrogens. Interestingly, though certain studies warn against the use of Pueraria mirifica for contraception because of its apparently carcinogenic effects on the body, in the scientific literature on menopause, miroestrol is said to compete with toxic human estrogesn in the body to block estrogen receptors that are involved in breast cancer and endometrial cancer. Indeed, miroestrol and other phytoestrogens in Pueraria mirifica go to work in menopausal women to support bone density, improve heart health, and yes, also relieve symptoms of menopause.


Other studies have backed up these results by showing that Pueraria mirifica stimulates estrogen in animals that need more estrogen and it lowers estrogen levels in animals that have normal or high levels of estrogen, but in studies observing Pueraria mirifica for birth control, the selective estrogen receptor discussion is conspicuously absent. And scientists seem to be mystified by the “contradictory” effects of Pueraria mirifica on a woman’s body.


So why is there a discrepancy between the scientific literature talking about the use of Pueraria mirifica for birth control versus the use of Pueraria mirifica for menopause? It’s hard to say exactly, but through my eyes, it looks like there is a difference in terms of funding or perhaps funding sources. In other words, while studies into herbal treatments for menopause have been funded, studies into herbal contraception have been less well funded and perhaps even politicized wherein scientists are inclined to observe and write about certain results (real or fake) rather than observing the actual data. Scientists, after all, have to put food on the table too, so they often pander to Consensus Based Science in order to get funding. But because I can’t say for sure that this is what’s going on, you should read this article and think carefully about how you choose to apply the information here. And note that generally, the average daily dose of Pueraria mirifica is between 25 to 200 mg/day though some women take up to 800 mg per day. Don’t take higher doses if you’re using P. mirifica as a stand-alone contraceptive if you think you might want to get pregnant later. 

Pueraria mirifica: Herbal Remedy for Menopause Symptoms


Despite the inconclusive research regarding Pueraria mirifica as an herbal contraceptive for women, this herb is well known in terms of its ability to relieve post-menopausal symptoms such as hot flashes, low libido, and vaginal tissue thinning. The research into Pueraria mirifica as an herbal remedy for menopausal symptoms is extensive and it generally points to beneficial effects on women’s body when it is taken at the proper dose. Whether you are post-menopausal or young and fertile, it would benefit you to consider taking Lugol’s iodine as a supplement daily to prevent breast cancer and other reproductive organ cancers. Learn more about Lugol’s iodine therapy here.  


In menopause, Pueraria mirifica releases isoflavones that modulate estrogen receptor expression. Studies recommend that menopausal women continuously take Pueraria mirifica at 20-100 mg per day for 6 months or at 100-200 mg per day for 12 months. No adverse effects were noted in women who took this Pueraria mirifica dose. 


Indeed, post-menopausal pre-treatment with Pueraria mirifica at 1000 mg/kg body weight per day for 28 days has been shown to prevent breast cancer and breast tumors in animal models of cancer. But, as mentioned previously in this article, high doses of Pueraria mirifica (more than 800 mg per day) in women of child-bearing age may be unwise given the supposed sterilizing effect of high dose Pueraria mirifica in monkeys. Whether sterilization is truly a potential issue or not is still up for debate. It seems unlikely, to be whole truth, but the research is simply not available at this time to prove that Pueraria mirifica is safe in mega doses for young women of child-bearing age.


That being said, a number of women take Pueraria mirifica with birth control pills and this can cause women to skip their periods. 


Miroestrol for Women’s Health


Pueraria mirifica contains the phytoestrogen known as miroestrol, which acts as a selective estrogen receptor modulator that binds competitively to estrogen receptors in the body, thus blocking excessive estrogen receptor stimulation by other, possibly more toxic forms of estrogen. The root extract of Pueraria mirifica has no known side effects and there are no known drug interactions reported for this herb. 


As a natural treatment for menopause, Pueraria mirifica has been studied in terms of its ability to do all of the following:


  • Reduce bone loss after menopause
  • Reduce hot flashes
  • Improve blood lipid profiles
  • Protect against cardiovascular disease
  • Improve genitourinary function


Studies have shown that Pueraria mirifica is an excellent herbal alternative to hormone replacement therapy after menopause.


Pueraria mirifica, as such, can be used as an herbal contraceptive in women. It has been shown to suppress ovulation in animal models of fertility by lowering serum levels of gonadotropins. If you wish to get pregnant in the future, Pueraria mirifica should be used at the recommended dosage (below 800 mg per day).


Do not take Pueraria mirifica if you are taking prescription estrogen, birth control pills, or if you are pregnant or nursing. Though some women take Pueraria mirifica with birth control pills to stop having periods, the long-term health effects of doing this aren’t established in the scientific literature. Note that reproductive hormones play a role in general health, not just reproduction or reproductive organ health, so exercise caution if you use Pueraria mirifica as a young woman of child-bearning age to stop your periods while also taking birth control pills.

Pueraria root extract is typically recommended in the treatment of menopause-related hot flashes, at a dose range of 200 mg containing 150 mcg Miroestrol twice per day. Symptom resolution of hot flashes often occurs within a few weeks of therapy.

Pueraria root extract has no known side effects at commonly prescribed doses. There are no confirmed drug interactions found in any clinical trial or quantitative systematic review.


Other Important Links:

Mucuna pruriens, Fertility, and General Sexual Health – How to Use the Mucuna Bean to Treat Male and Female Infertility Naturally

Trifolium pratense: Herbal Remedy for Fertility, Menopause, and So Much More..

Is meth addiction curable? Part II: More on Mucuna pruriens

Eat Your Beans: Mucuna pruriens Depression Cure

The Vitamin B17 – Laetrile – Amygdalin Cancer Cure

Vitamin C, B Complex, Magnesium, Methylene Blue, Mucuna, and NAC for Parkinson’s and Lewy Body Dementia

Puerariae Plants: Cure Androgenic Alopecia, Get Rid of Gray Hair Naturally, and Balance Reproductive Hormones with These Plants

Hoxsey Tonic at the Bio-Medical Center

How to Stop an Addiction to Sugar: Sugar Addiction Help for People Who Have Tried It All

How to Get Rid of Gallstones without Surgery: Dr. Hulda Clark’s Gallbladder Cleanse



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