High estrogen level in men is generally caused by increased aromatase enzyme activity which involves conversion of testosterone into a form of estrogen known as estradiol. The process happens in the adipose (body fat) tissue. This is the reason why having too much belly fat exposes men to high levels of estrogen due to the higher amounts of the aromatase enzyme found within the adipose tissue.

It is worth to note that high levels of estrogen in males lead to testosterone suppression as a result of inhibited release of the luteinizing hormone by the pituitary gland. When this happens, a vicious cycle comes into play such that even less testosterone is produced and eventually the level of estrogen is extremely high. This has feminizing effects and presents with symptoms like:

·       Fatigue

·       Poor libido

·       Erectile dysfunction

·       Moodiness

·       Reduced muscle mass

·       Subcutaneous water retention

·       Feminized facial and body physique

·       Development of man-boobs

·       Prostate gland complications

This means that while men need some estrogen for their health, too much will make you less of a man and more feminine. It is therefore necessary to have just the right amount so that your testosterone – estrogen balance is supportive of your overall good health as well as your masculinity. If you have the above symptoms and fear that you are progressively becoming more feminine, it’s time to start working on regaining your hormonal balance.

To achieve this, you may need to get your hormone status tested at a professional laboratory. When this has been ascertained, conventional medications might be prescribed. But there also exists natural estrogen blocking supplements that can help you get back your old self without the side effects that come with synthetic supplements. In the following section, we look at the top 7 natural estrogen supplements to lower high estrogen.

Top 7 Natural Estrogen Supplements to Lower High Estrogen Levels

1.    Resveratrol

Several studies including this one have found that resveratrol; a polyphenol antioxidant contained in red grapes has powerful estrogen blocking properties besides increasing production of testosterone. Resveratrol works by inhibiting aromatase so that less testosterone is converted to estrogen. There is, however, a challenge with low bioavailability of resveratrol; for which reason you would need to eat very high amounts of red grapes. Otherwise, look for a product with proven enhanced absorption.

2.    Zinc

Zinc is one of the essential micronutrients required for human survival. It is involved in hundreds of body functions including supporting the proper functioning of the immune system besides being a constituent of many enzymes. Zinc is also known to act as an inhibitor of the aromatase enzyme and is therefore an important estrogen blocking supplement. It also helps increase DHT (dihydrotestosterone) and free testosterone levels besides lowering SHBG (sex hormone binding globulin) levels.

3.    Boron

While boron is a trace mineral element with whose functions are not considered essential for survival, studies have found that consumption of boron benefits the sexual health of men. In one study, a group of men were given 10mgs of boron for one week. At the end of this period, the men’s free testosterone levels were found to have risen by 28 percent while their free estrogen levels had decreased by 39 percent. The men’s inflammation biomarkers were also found to have reduced.

4.    Tongkat Ali

Tongkat Ali, whose scientific name is eurycoma longifolia is a native plant of Malaysia with known testosterone boosting properties. Tongkat Ali inhibits aromatase enzyme and suppresses SHBG. It also stimulates testicular enzymes thereby supporting testosterone production. In one rodent study, when tongkat ali was injected into the rodents, it achieved estrogen blockage equivalent to that achieved with the powerful synthetic tamoxifen.


5.    White Button Mushrooms extract

White button mushroom extract is another natural estrogen inhibitor. Some research studies have found that daily consumption of white button mushroom extract can inhibit estrogen significantly by reducing aromatase activity. One study found that a dose of 10 – 13 grams of white button mushroom extract per day for 12 weeks had the best estrogen blocking effect.

6.    Calcium D-Glucarate

Calcium D-glucarate is another natural estrogen blocker that works with virtually no side effects. Calcium D-glucarate works by binding with estrogen and transporting it outside of the body through the digestive system. Besides, by using calcium D-glucarate, you access other benefits like detoxification and reduction of LDL and bad cholesterol. Note that calcium D-glucarate has minimal adverse effects. You will therefore end up much healthier with normal hormone levels, improved circulation and higher libido without the side effects that are common with manufactured estrogen blockers.

7.    Grape seed Extract

Grape seen extract contains procyanidin, a phenol compound which increases nitric oxide levels in the body. This has the obvious benefit of improving circulation. However, studies have found that grape seed extract also have the ability to inhibit activity of the aromatase enzyme. This helps to lower estrogen levels thereby promoting healthier testosterone-estrogen balance.

There is, however, one downside to using grape seed extract as an estrogen blocking supplement. It has very low bioavailability. But according to a study, this can be greatly improved by taking grape seed extract during a fasting state.


High estrogen level leads to low testosterone levels and the symptoms and frustrations that come with it. But all is not lost. You can stop the feminizing characteristics by using the above best natural estrogen blocking supplements which are virtually side effect-free. The natural estrogen blockers work in a number of ways.

They may inhibit aromatase enzyme so that less testosterone is converted to estrogen, stop excretion of estrogen so that it is recycled in the liver for the production of more testosterone or bind to estrogen so as to excrete it through the alimentary canal. The overall result is that you will have less estrogen and more testosterone in your body. This will help your body recover its testosterone – estrogen balance so that you get back your healthy masculinity with all the benefits such as a healthier libido, adequate energy and overall well being.


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