Most men can lower their estrogen levels through a combination of body fat reduction, dietary changes, and limiting exposure to estrogen-mimicking chemicals. The normal range for estradiol (the primary form of estrogen) in men is 20 to 50 pg/mL, and levels above that range can cause noticeable symptoms. The good news is that the biggest driver of excess estrogen in men, body fat, is something you can directly control.
Why Men Produce Too Much Estrogen
Only about 15% of the estrogen circulating in a man’s body comes from the testes. The rest is produced in other tissues, primarily fat, through an enzyme called aromatase that converts testosterone into estrogen. The more body fat you carry, the more aromatase you produce, and the more testosterone gets converted. A 2024 study in The Journal of Clinical Endocrinology & Metabolism found that body fat percentage was the single strongest predictor of aromatase activity in men, stronger than age, insulin levels, or waist-to-hip ratio.
This creates a frustrating cycle. Higher aromatase activity means less available testosterone and more estrogen, which in turn promotes fat storage (especially around the midsection), which increases aromatase further. Men with obesity had significantly higher aromatase gene expression and protein levels compared to lean men. Breaking this cycle is the most effective long-term strategy for bringing estrogen back into range.
Signs Your Estrogen May Be Too High
Elevated estrogen in men can show up as breast tissue swelling or tenderness (gynecomastia), erectile dysfunction, reduced fertility, and depression. Some men also experience increased frequency of migraines. These symptoms overlap with low testosterone, which makes sense: when aromatase is converting too much testosterone into estrogen, both problems occur simultaneously.
Lose Body Fat First
Reducing body fat is the most impactful thing you can do. Because fat tissue is the primary factory for estrogen production in men, losing even a moderate amount of body fat directly reduces the amount of aromatase available to convert testosterone. You don’t need to reach single-digit body fat percentages. Getting from an obese range into a healthy range can meaningfully shift the testosterone-to-estrogen ratio.
Resistance training is particularly useful here because it builds muscle while reducing fat, and the acute testosterone boost from heavy compound lifts works in your favor. Combining strength training with a moderate calorie deficit tends to preserve muscle mass better than dieting alone, which matters because losing muscle can slow your metabolism and make fat regain more likely.
Eat More Fiber
Your liver processes estrogen by attaching it to a molecule called glucuronic acid, then sending the bundled package into your digestive tract for excretion. The problem is that certain gut bacteria produce an enzyme that can snip estrogen free from that bundle, allowing it to be reabsorbed into your bloodstream instead of leaving your body.
Dietary fiber helps in two ways. It reduces the activity of that enzyme in your gut, and it physically binds to estrogen in the intestine, increasing the amount that leaves through your stool. Vegetables, legumes, whole grains, flaxseeds, and fruits with skin are all good sources. Most men fall well short of the recommended 30 to 38 grams per day, so even a modest increase can help.
Cut Back on Alcohol
Alcohol raises estrogen through a double mechanism. It can stimulate aromatase activity, increasing the conversion of testosterone to estrogen, and it impairs the liver’s ability to clear estrogen from circulation. Animal research shows that chronic heavy drinking leads to increased aromatization in the liver itself, and this effect is thought to explain the feminizing changes (including breast tissue growth) seen in some men with alcohol use disorders.
You don’t necessarily need to quit entirely, but regular heavy drinking is one of the more reliable ways to push estrogen levels up. Cutting back to a few drinks per week, or eliminating alcohol for a period, can help your liver do its job more efficiently.
Reduce Exposure to Estrogen-Mimicking Chemicals
Certain synthetic chemicals can mimic estrogen in the body. The most common ones you’ll encounter daily include BPA (found in plastic food containers and can linings), phthalates (found in fragranced products, soft plastics, and cosmetics), and pesticide residues on non-organic produce. These are collectively known as endocrine-disrupting chemicals.
Practical steps to reduce your exposure:
- Don’t microwave food in plastic containers or use them to store hot liquids, since heat accelerates chemical leaching
- Avoid plastics labeled #3, #6, and #7, which are more likely to contain harmful compounds
- Wash fruits and vegetables thoroughly before eating them
- Reduce canned and heavily processed foods, which can accumulate traces of these chemicals during manufacturing and packaging
- Choose fragrance-free products when possible, since “fragrance” on a label often includes phthalates
- Trim fat from meat and skin from fish, as some of these chemicals accumulate in animal fat
Supplements That May Help
Calcium D-glucarate is a supplement that supports the same liver detoxification pathway your body uses to eliminate estrogen. It works by inhibiting the gut enzyme (beta-glucuronidase) that frees estrogen from its packaging and allows reabsorption. By blocking that enzyme, more estrogen makes it out of your body instead of cycling back into circulation. It’s available over the counter and is one of the better-studied options for supporting estrogen metabolism.
Cruciferous vegetables like broccoli, cauliflower, Brussels sprouts, and kale contain compounds that support estrogen metabolism through the liver. Some men take concentrated forms of these compounds as supplements, though eating the vegetables regularly provides the same benefit along with the fiber that aids estrogen excretion.
When Medication Becomes Necessary
For men with persistently high estrogen despite lifestyle changes, or those with specific conditions like gynecomastia or infertility tied to a poor testosterone-to-estrogen ratio, doctors sometimes prescribe aromatase inhibitors. These drugs block the enzyme that converts testosterone to estrogen. They have no official approval for use in men and are prescribed off-label, but they are used in clinical practice for select cases.
These medications carry real risks with long-term use, including reduced bone mineral density, unfavorable changes in cholesterol (specifically lower HDL, the protective type), increased red blood cell counts, and spinal abnormalities. Estrogen isn’t just a female hormone you want to eliminate. Men need some estrogen for healthy bones, cardiovascular function, and even normal sexual desire. Driving estrogen too low with medication can cause loss of libido and other problems that are just as disruptive as having too much. This is why lifestyle approaches are the preferred first line, and why medication requires monitoring through blood work.
If your estradiol levels come back above 50 pg/mL, or if you’re experiencing symptoms like breast tissue growth or sexual dysfunction, getting a full hormone panel (including both testosterone and estradiol) gives you a clearer picture of what’s happening and whether the ratio between the two is off.