July 2018 ~ HEALTHIMANIA

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Chasteberry, 
also known as Vitex agnus-castus, is the fruit of the chaste tree, which
 is native to western Asia and southwestern Europe [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
 
This fruit is used as a dietary supplement for conditions such as menopause, <a href="https://www.selfdecode.com/disease/infertility/?utm_source=seo&#38;utm_medium=selfhacked&#38;utm_campaign=id00002">infertility</a>,
 menstrual problems, and a number of other conditions. It is available 
as a capsule, liquid extract, tablet, and essential oil [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>].  
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLi2kwuh85XYl6-ESFBb5gms0VamJi7jP2a3NPzPMXYAnnKG8tBw24lnvb4NISOBus201W1omXZvEpTU3NvscKc-p4J2ZyoT5_A_iNa3nHjVhIgpvEYpqu6PLM_rqvqF__MW_I57MjL-U/s1600/chasteberry.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="259" data-original-width="194" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLi2kwuh85XYl6-ESFBb5gms0VamJi7jP2a3NPzPMXYAnnKG8tBw24lnvb4NISOBus201W1omXZvEpTU3NvscKc-p4J2ZyoT5_A_iNa3nHjVhIgpvEYpqu6PLM_rqvqF__MW_I57MjL-U/s1600/chasteberry.jpg" /></a></div>
 
The chasteberry is composed of [<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3873812/">R</a>, <a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]: 
<ul>
<li style="font-weight: 400;">Flavonoids (casticin, kaempferol, orientin, quercetagetin, and isovitexin): These are plant pigments that are naturally found in a variety of nuts, fruits, and vegetables. These chemicals have <a href="https://www.selfdecode.com/health-effect/anti-inflammatory/?utm_source=seo&#38;utm_medium=selfhacked&#38;utm_campaign=id00002">anti-inflammatory</a>, anti-cancer, and anti-viral properties [<a href="https://www.ncbi.nlm.nih.gov/pubmed/19075837">R</a>].</li>
<li style="font-weight: 400;">Essential oils (limonene, cineol, pinene, and sabinene): These
 are the naturally occurring chemicals that give the chasteberry (and 
other fruits) its odor and flavor. Blends of essential oils are 
frequently used in aromatherapy for their effects in decreasing <a href="https://www.selfdecode.com/trait/resting-heart-rate/#disease-symptoms">heart rate</a> and blood pressure [<a href="https://www.ncbi.nlm.nih.gov/pubmed/21922934">R</a>]. </li>
<li style="font-weight: 400;"><a href="https://www.selfdecode.com/health-effect/anti-inflammatory/?utm_source=seo&#38;utm_medium=selfhacked&#38;utm_campaign=id00002">Anti-inflammatory</a> compounds (iridoid glycoside): These compounds have similar effectiveness in treating inflammation as NSAIDs with far fewer side effects [<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3011108/">R</a>]. </li>
</ul>
<h1>
Mechanism of Action</h1>
Chasteberry increases <a href="https://www.selfhacked.com/blog/dopamine/">dopamine</a> activity in the brain. This results in a reduction of prolactin release in the body [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
When too much prolactin is circulating in the body, it can cause disturbances in the menstrual cycle as well as a deficiency in levels of estrogen (in women) and testosterone (in men) [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
However, these hormonal changes appear to be dose-dependent. Low doses (200 mg) of chasteberry can increase levels of <a href="https://www.selfhacked.com/blog/prolactin/">prolactin</a> and progesterone (likely by the inhibition of other hormones (FSH and LH)). At high doses (500 mg) of chasteberry, levels of prolactin are decreased (with LH and FSH levels unaffected) [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
Additionally, chasteberry may stimulate opioid receptors. Opioid drugs are medically used as painkillers (e.g. <a href="https://www.selfdecode.com/chemical/morphine/?utm_source=seo&#38;utm_medium=selfhacked&#38;utm_campaign=id00002">morphine</a>, codeine), therefore chasteberry may provide users with some pain relief by acting on similar pathways within the body [<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2993511/">R</a>, <a href="https://www.ncbi.nlm.nih.gov/pubmed/16439081/">R</a>]. 
Chasteberry also stimulates the secretion of melatonin, a hormone in your body that regulates the circadian rhythm (sleeping patterns) [<a href="https://www.ncbi.nlm.nih.gov/pubmed/12605350">R</a>]. 
<h1>
Health Benefits of Chasteberry</h1>
<h2>
1) Chasteberry Alleviates PMS</h2>
<img alt="" class="alignnone wp-image-44412" height="426" src="https://www.selfhacked.com/wp-content/uploads/2018/01/bigstock-155410649-min-300x200.jpg" width="640" /> 
In many clinical studies, chasteberry reduced a variety of PMS symptoms including breast pain and tenderness, edema, <a href="https://www.selfhacked.com/blog/causes-ibs-general-gut-dysfunction/">constipation</a>, irritability, depressed mood, anger, and <a href="https://www.selfhacked.com/blog/natural-treatment-migraines/">migraines</a> [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
In one study (DB-RCT) of 128 women 
with PMS symptoms, more than half of the patients treated with 
chasteberry over 6 days for 6 consecutive menstrual cycles experienced 
significantly reduced breast pain and tenderness, edema, constipation, irritability, depressed moods, and migraines [<a href="https://www.ncbi.nlm.nih.gov/pubmed/22359078">R</a>]. 
In some cases, PMS symptoms can be 
caused by an excess release of prolactin from the pituitary gland. In 
other cases, it may be a result of an imbalance of estrogen to 
progesterone [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
High doses (400 mg daily) of 
chasteberry may alleviate PMS symptoms by reducing circulating prolactin
 in the body, which restores estrogen levels. Additionally, it reduces 
progesterone levels, normalizing the ratio of progesterone to estrogen. 
These hormonal balances may provide significant relief during PMS [<a href="https://www.ncbi.nlm.nih.gov/pubmed/19469189">R</a>]. 
<h2>
2) Chasteberry Enhances Female Fertility and Treats Menstrual Cycle Disorders</h2>
In Germany, chasteberry is used to treat luteal phase disorders. This is the second half of the menstrual cycle, which is usually shortened in women with the disorder [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
Luteal phase disorder is primarily 
caused by progesterone deficiency in the first phase of the menstrual 
cycle. Another menstrual cycle disorder, called amenorrhea, is the absence of menstruation.
 This may be caused by sustained hormone fluctuations, thyroid 
malfunction, pituitary tumor, premature menopause, and pregnancy [<a href="https://www.ncbi.nlm.nih.gov/books/NBK278939/">R</a>]. 
In both of these conditions, it is 
quite difficult and/or impossible to become pregnant. Patients also 
experience a variety of other complications, especially in their PMS 
cycles. 
In a study (RCT) of 96 patients with 
luteal phase disorders, amenorrhea and idiopathic infertility (unknown 
infertility), chasteberry increased pregnancy rates compared to placebo.
 Pregnancy occurred twice as often in patients who consumed chasteberry 
over a period of 3 months compared to patients who did not use 
chasteberry as a treatment [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
These effects were mediated by 
normalizing the levels of progesterone. This helps to achieve pregnancy 
by alleviating progesterone deficiencies [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
Further, patients can experience a 
more regular menstrual cycle. In one study (DB-RCT) of 52 women with 
hyperprolactinemia (higher than normal levels of circulating prolactin),
 chasteberry improved irregular periods and enhanced fertility. This was achieved by chasteberry normalizing the levels of prolactin in patients with hyperprolactinaemia [<a href="https://www.ncbi.nlm.nih.gov/pubmed/8369008">R</a>]. 
For these reasons, chasteberry may be effective in the treatment of polycystic ovarian syndrome [<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528347/">R</a>]. 
<h2>
3) Chasteberry Reduces Symptoms of Menopause</h2>
Menopause marks the end of the 
menstrual cycle for women. This period is associated with a natural 
decline in the female reproductive hormones (estrogen and progesterone).
 In the time leading up to menopause, many women experience a variety of
 symptoms, including irregular periods, vaginal dryness, chills, night 
sweats, hot flashes, and dry skin. 
In two separate trials (and surveys) 
totaling 75 patients, most women suffering from menopausal symptoms who 
used the essential oils derived from the leaf and fruit of chasteberry 
reported strong symptomatic relief from these menopausal symptoms [<a href="https://www.ncbi.nlm.nih.gov/pubmed/12852933">R</a>]. 
Chasteberry increases progesterone at low doses (200 mg), which may be involved in reducing these symptoms of menopause [<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3800090/">R]</a>. 
<h2>
4) Chasteberry May Reduce Migraines</h2>
<img alt="" class="alignnone wp-image-44301" height="424" src="https://www.selfhacked.com/wp-content/uploads/2018/01/bigstock-Depressed-Man-154138076-min-300x199.jpg" width="640" /> 
In a 3 month study of 100 women with PMS and migraines,  chasteberry treatment reduced the frequency of monthly migraines by more than 50 %
 in 42 % of patients. In addition, 57 % of patients given chasteberry 
had more than a 50 % lower frequency of monthly days with headaches [<a href="https://www.ncbi.nlm.nih.gov/pubmed/22791378">R</a>]. 
<h2>
5) Chasteberry May Act as an Insect Repellant</h2>
Chasteberry is effective in repelling
 insects such as fleas, mosquitos, ticks, and biting flies. In a lab, 
animal, and human studies, a spray developed from a seed extract of 
chasteberry (monk’s pepper) was successful in keeping away these insects
 from humans and animals for a time period of about 6 hours [<a href="https://www.ncbi.nlm.nih.gov/pubmed/15682335">R</a>]. 
<h2>
6) Chasteberry Is Anti-Inflammatory and May Reduce Symptoms of Endometriosis</h2>
Endometriosis is when the 
uterine-tissue lining (endometrium) begins to develop outside of the 
uterus. It is generally caused by genetic factors or hormonal 
imbalances. A common symptom of endometriosis is heavy inflammation 
around the uterus, resulting in pain and increased bleeding during the 
menstrual cycle [<a href="https://www.ncbi.nlm.nih.gov/pubmed/24366116">R</a>]. 
Chasteberry may help reduce the 
amount of inflammation around the uterus by normalizing these hormonal 
imbalances, making the symptoms less painful [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>, <a href="https://www.ncbi.nlm.nih.gov/pubmed/23136064">R</a>]. 
It can also relieve symptoms by 
decreasing pain and inflammation. In one rat study, a number of 
compounds in chasteberry reduced pain (possibly by stimulating opioid 
receptors) and inflammation in various parts of these animals [<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4469960/">R</a>]. 
In another lab study (human blood cells), chasteberry exhibited moderate anti-inflammatory activity [<a href="https://www.ncbi.nlm.nih.gov/pubmed/21058321">R</a>]. 
<h2>
7) Chasteberry May Treat Enlarged Prostate</h2>
An enlarged prostate, also known as benign prostatic hyperplasia (BPH),
 occurs in most men as they grow older. Although it is not 
cancer-causing, an enlarged prostate can significantly increase the risk
 of <a href="https://www.selfdecode.com/disease/prostatic-neoplasms/?utm_source=seo&#38;utm_medium=selfhacked&#38;utm_campaign=id00002">prostate cancer</a>. The likelihood of prostate enlargement increases with age [<a href="https://medlineplus.gov/ency/article/000381.htm">R</a>]. 
Enlargement occurs when cells of the 
prostate gland begin to multiply increasingly, eventually causing a 
noticeable size difference. 
Prostate cancer can occur once the 
prostate gland cells begin to multiply out of control. In the lab, 
extracts of chasteberry reduced the growth of cells and even stimulated 
the death of prostate cells, indicating that chasteberry may be useful for the prevention and/or treatment of benign prostatic hyperplasia and human prostate cancer [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16254821">R</a>]. 
<h2>
8) Chasteberry May Reduce <a href="https://www.selfhacked.com/blog/everything-need-know-acne/">Acne</a></h2>
<img alt="" class="alignnone wp-image-44878" height="427" src="https://www.selfhacked.com/wp-content/uploads/2018/01/bigstock-222429682-min-300x200.jpg" width="640" /> 
One of the main causes of acne is 
hormonal fluctuation and imbalances, which are more pronounced during 
PMS. As a result, many women experience acne before their menstrual 
cycles. Because chasteberry normalizes these hormonal imbalances (by 
decreasing prolactin), it may treat premenstrual acne [<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5015761/">R</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3841997/">R</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4740760/">R</a>]. 
Chasteberry may also treat 
premenstrual acne due to its antibacterial and antioxidative properties.
 In the lab, gel extracts of chasteberry inhibited the growth of 
acne-producing bacteria (tested in cell plates) [<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4132408/">R</a>]. 
<h2>
9) Chasteberry May Treat Uterine Fibroids</h2>
A uterine fibroid is a non-cancerous tumor that develops in the uterus of many women [<a href="https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0024647/">R</a>]. 
Most of the time, uterine fibroids 
are caused by hormonal imbalances. Because of this, hormone therapy is 
commonly used to treat and shrink uterine fibroids.<a href="https://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0072716/"></a> 
The key hormones involved in this 
process are generally estrogen and progesterone. High levels of 
progesterone can promote the development of uterine fibroids<a href="https://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0072716/"></a><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3525705/"></a>. 
Since chasteberry reduces progesterone levels, it may alleviate some symptoms of uterine fibroids. 
Increased bleeding is one of the key 
symptoms of uterine fibroids. One study (DB-RCT) of 84 women with heavy 
bleeding in their uterus during menstruation found that chasteberry 
treatment for over a period of 4 months significantly decreased bleeding, indicating that it may reduce increased menstrual bleeding from patients with uterine fibroids<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4134154/"></a>. 
<h1>
Dosage</h1>
For PMS symptoms, uterine fibroids, 
premenstrual acne, endometriosis, and female infertility, 400 to 500 mg 
of standardized extract (with 0.5% agnuside) per day have been taken in clinical trials [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>, <a href="https://wholehealthchicago.com/2009/05/11/chasteberry/">R</a>]. 
For menopausal symptoms, low doses of about 200 mg per day were taken in clinical trials [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
Agnuside is the active ingredient 
found in chasteberry, and powder extracts of chasteberry are generally 
standardized to contain 0.5% agnuside [<a href="https://wholehealthchicago.com/2009/05/11/chasteberry/">R</a>]. 
<h1>
Side Effects</h1>
If used in limited amounts (not more 
than 1000 mg per day), this fruit tends to be very well-tolerated and 
there have not been many reported side effects. In rare cases, there 
have been reports of skin rashes and stomach discomfort, while there are
 also reports of increased menstrual flow [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
Do not take chasteberry during 
pregnancy, as this will cause hormonal fluctuations, which may have 
strong effects on an individual during this period. 
<h1>
Drug Interactions</h1>
Drug interactions or 
contraindications with chasteberry are unknown. However, because it 
increases dopamine, it may interfere with drugs that affect dopamine 
levels [<a href="https://www.ncbi.nlm.nih.gov/pubmed/16156340">R</a>]. 
This would mainly apply to patients 
taking antipsychotic drugs and those who suffer from Parkinson’s 
disease. These individuals should consult their doctor before taking 
chasteberry. 
Women taking other hormone-altering 
drugs such as birth control pills should not use chasteberry. Hormonal 
changes caused by chasteberry interrupt the action of these drugs. 
Furthermore, if you have a hormone-sensitive condition such as <a href="https://www.selfhacked.com/blog/66-natural-scientific-ways-prevent-treat-breast-cancer/">breast cancer</a>, then chasteberry should be avoided [<a href="https://nccih.nih.gov/health/chasteberry">R</a>]. 
<h1>
Natural Sources/Forms of Supplementation</h1>
Chasteberry can be found in a number 
of forms in your local store and online. The fruit is found in dried 
capsules as well as in liquid extracts. Most of the time it is mixed 
with other natural herbs, but can still be found in extracts of itself 
only. 
<h1>
Limitations and Caveats</h1>
The chasteberry has not received FDA 
approval as a health-product, and it’s always recommended to speak with a
 healthcare provider while using this as a supplement. 
High-quality clinical studies on 
chasteberry are limited and are small or of short duration. While some 
evidence supports the use of chasteberry for PMS and cyclical breast 
discomfort, evidence for its use in other conditions remains uncertain. 
</div>

Chasteberry, also known as Vitex agnus-castus, is the fruit of the chaste tree, which is native to western Asia and southwestern Europe [...

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