Men on testosterone therapy can manage elevated estrogen by adjusting testosterone dosage, reducing body fat, or using aromatase inhibitors like Exemestane.
TRT helps men who have low testosterone. It can boost energy, mood, and muscle strength. However, sometimes the body converts some of that testosterone into oestrogen using a special enzyme called aromatase. Even though oestrogen is known as a female hormone, men need a small amount too. It helps keep bones strong and supports brain and heart health.
Too much oestrogen, though, can cause unwanted side effects. That is why it is essential to regularly check hormone levels and take steps to maintain them within a healthy range. This may include adjusting the TRT dose, improving diet, exercising, or taking medication or natural supplements.
In this blog, we will explain what oestrogen does in the male body, how to spot the signs of a hormone imbalance, and what you can do to stay healthy while on TRT.
When men take TRT, their bodies get more testosterone. But not all of it stays as testosterone. Some of it turns into oestrogen. This happens through a natural process in the body using an enzyme called aromatase. Aromatase is found in places like fat tissue, the liver, and even the brain.
Even though people often call oestrogen a female hormone, men need it too. It helps with:
But balance is the key. Men need just the right amount of oestrogen. Too little can cause joint pain, low mood, and weak bones. Too much can lead to swelling in the chest area (called gynecomastia), tiredness, and low sex drive.
When a man starts TRT, his testosterone levels go up. This increases the body's production of testosterone, which can then be converted into oestrogen, especially if the individual has more body fat. This is why some men on TRT end up with high oestrogen levels.
It is essential to know the signs when oestrogen levels are not correct. This can help you identify problems early and access the right assistance.
If oestrogen levels get too high, men might notice:
These changes can happen slowly, so it is good to pay attention to how your body feels over time.
Sometimes, oestrogen levels can drop too low. This might cause:
Just like with high oestrogen, these signs can be mild or intense. Everyone is different.
The goal is not to eradicate oestrogen. Men need a healthy amount to feel and function their best. That is why keeping it in balance is so important.
Despite having normal testosterone levels and not being on testosterone replacement therapy (TRT), some men still have high levels of estrogen. This can also occur in men with low testosterone levels.
This can lead to an accumulation of Oestrogen in the body, which can increase the risk of cancer. Therefore, it is essential to be aware of the effects of Oestrogen and to take steps to prevent cancer.
Genetic factors can also lead to elevated estrogen levels in men.
Men with high oestrogen levels suffer from the following causes:
Men with high body fat often experience elevated levels of estrogen, which in turn leads to a decrease in testosterone production due to a negative feedback loop. As a result, it is not uncommon for these individuals to have high estrogen levels despite having low levels of testosterone.
Among the best natural methods for lowering oestrogen levels are:
These can be utilised by both men who undergo TRT and individuals who have naturally elevated estrogen levels.
A decrease in oestrogen levels in a biological individual can lead to a rise in testosterone levels.
Other methods of lowering oestrogen levels in men on TRT include:
You need to consult with your prescribing doctor before adjusting your TRT protocol.
Adjusting the dosage of exogenous testosterone or administering smaller injections can help decrease oestrogen levels, as HCG stimulates the production of specific forms of Oestrogen more than testosterone alone.
Strategy |
Effectiveness |
Notes |
Reduce TRT dose |
Moderate |
Useful if estrogen spikes due to excessive testosterone |
Split testosterone injections |
High |
Reduces peak T levels and subsequent estrogen conversion |
Reduce or stop HCG |
Moderate |
HCG may spike estrogen more than testosterone alone |
Use Exemestane |
High |
Best AI for stability, fewer lipid effects, no rebound |
Use Anastrozole |
Moderate |
May cause rebound estrogen if not dosed precisely |
Lifestyle (fat loss, sleep, diet) |
Moderate to high |
Supports long-term estrogen and testosterone balance
|
Oestrogen plays a significant role in maintaining the overall well-being of men. It supports cardiovascular health, regulates cholesterol levels, promotes mental well-being, and contributes to sexual function and libido. Additionally, estrogen plays a crucial role in maintaining healthy sleep patterns and supporting the strength of bones and joints.
Maintaining appropriate estrogen levels is essential for men's well-being and should not be unnecessarily diminished.
However, if you are experiencing symptoms related to high oestrogen levels or if your levels are significantly above the normal range, it may be beneficial to explore options for reducing it, such as consulting with a healthcare professional.
Aromatase inhibitors (AIs) can be a viable option for men who are unable to regulate their oestrogen levels using alternative methods or for those genetically predisposed to high levels. Additionally, it may serve as a temporary solution for men with elevated body fat percentages.
Encouraging a reduction in body fat levels and making lifestyle changes to lower oestrogen levels, while minimising the need for aromatase inhibitors, is ideal. However, it is essential to acknowledge that achieving this may only sometimes be feasible or practical for some individuals.
Each AI has its unique potency, variations in its action methods, particularly in its binding to the aromatase enzyme, and differences in its half-lives.
Anastrozole and Exemestane are the two most commonly prescribed aromatase inhibitors (AIs) for men. Unlike other AIs used in women for breast cancer treatment, these medications are chosen for their lower potency to suit the needs of male patients better.
Due to its high potency, Letrozole is not recommended for use as an aromatase inhibitor (AI) in the majority of men, whether they are on or off testosterone replacement therapy (TRT). The medication carries a significant risk of completely inhibiting aromatase activity, which can lead to a sharp decline in estrogen levels, a phenomenon commonly referred to as "crashing."
Suppose anastrozole is not dosed correctly or the protocol is not optimal. In that case, the temporary attachment and subsequent disengagement of the aromatase enzyme can cause a rebound in estrogen levels, which can be problematic.
Exemestane, a steroidal aromatase inhibitor, binds to the enzyme and remains attached, effectively blocking its conversion of testosterone into estrogen. As a result, estrogen levels do not suddenly increase, but it can prolong the process or increase the likelihood of experiencing a decreased recovery process.
Exemestane is widely regarded as the optimal choice, not just due to its lack of rebound effects but also thanks to its numerous other advantageous qualities.
Unlike anastrozole, Exemestane has a milder impact on a patient's lipids, making it a safer option for long-term usage.
By dosing Exemestane less frequently, you can maintain a more stable level of Oestrogen, avoiding any significant rebound effect. This ensures consistent control over aromatase activity and promotes steady oestrogen levels.
What causes high oestrogen levels in men on testosterone therapy?
High oestrogen levels in men on testosterone therapy are often caused by aromatisation, where extra testosterone is turned into oestrogen by an enzyme called aromatase. This process happens more in men with higher body fat, which is why controlling weight can help manage oestrogen levels on TRT.
Is it normal for oestrogen to increase on TRT?
Yes, a slight increase in oestrogen is expected when starting TRT because the body naturally converts some testosterone into oestrogen. However, if oestrogen levels become too high, it can lead to side effects, so regular testing is needed to keep oestrogen within the healthy range.
How do I lower oestrogen levels while on TRT naturally?
To naturally lower oestrogen levels while on TRT, focus on reducing body fat, eating more cruciferous vegetables like broccoli and kale, and avoiding alcohol and processed food. These steps support healthy hormone balance and reduce aromatase activity in the body.
What are the symptoms of high oestrogen levels in men on TRT?
Common symptoms of high oestrogen in men on TRT include breast swelling (gynecomastia), mood swings, water retention, low energy, and reduced sex drive. These are signs that you may need to adjust your treatment or check hormone levels more closely.
Can supplements like DIM help control oestrogen on testosterone therapy?
Yes, supplements like DIM (diindolylmethane) can help control oestrogen levels on testosterone therapy by supporting the body’s ability to break down oestrogen into weaker forms. It’s a popular natural oestrogen blocker for men on TRT, but results vary from person to person.
Should I use an aromatase inhibitor for high oestrogen on TRT?
Aromatase inhibitors like anastrozole are sometimes used to lower oestrogen levels in men on TRT when symptoms are intense and blood tests confirm high estradiol. However, they should only be used under a doctor’s care to avoid lowering oestrogen too much.
How often should I check oestrogen levels on testosterone therapy?
Men on testosterone therapy should check their oestrogen (estradiol) levels every few months during the early stages, and then at least twice a year once things are stable. Regular hormone testing helps keep oestrogen and testosterone in a healthy balance.
What is a good oestrogen level for men on TRT?
A good oestrogen level for men on TRT is usually between 40 and 65 picograms per millilitre (pg/mL), but the ideal range can vary based on symptoms and lab standards. The key is to find the level where you feel your best without unwanted side effects.
Maintaining balanced oestrogen levels is crucial for men's overall health and well-being. Healthcare professionals and individuals should prioritise natural methods to regulate oestrogen levels in the long run, considering pharmaceutical interventions only as a temporary solution for managing excessive Oestrogen.
Exemestane is often the preferred choice for AI in many situations due to its ability to maintain steady estrogen levels without causing a sudden drop. Utilising a low dosage and frequent administration ensures optimal results without the risk of crashing estrogen levels.
It is essential to regularly monitor oestrogen levels during TRT to ensure they are at the optimal range. However, if a patient is not experiencing any adverse side effects despite slightly elevated levels, it may be best to refrain from making any adjustments to their oestrogen levels. If you need help, you can contact Androgenix for professional guidance and assistance.