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Sex Hormone Binding Globulin (SHBG): What You Need To Know

May 3, 2024

Sex Hormone Binding Globulin (SHBG) plays a crucial role in men’s health today, particularly as they face different social and environmental challenges than previous generations. Thankfully, advancements in men’s health have empowered men to manage their well-being in ways that earlier generations couldn’t have imagined. Modern methods address various issues, from hair loss to sexual dysfunction, and conversations about male hormones, once considered taboo, are now more open and accepted. SHBG is one of the key players in this evolving dialogue.

Guys interested in improving their overall health are now diving deeper into understanding how their hormone levels can affect bodily functions. Sex hormone-binding globulin levels can become unbalanced and could be the culprit of several different issues for men. In this article, we’ll look at SHBG and discuss how it can affect men’s health.

What is SHBG?


Sex hormone-binding globulin, SHBG for short, is mostly produced in the liver and, to a lesser degree, the testes. Its main function is to bind certain hormones, namely estradiol, testosterone, and dihydrotestosterone (DHT). SHBG carries these sex hormones through the bloodstream. They aren’t available for the body to use in this bound state. This is one of the ways the body regulates hormone levels.

Specific Roles of Key Hormones

  • Estradiol: The most abundant form of estrogen in a woman who is cycling, playing a critical role in reproductive and sexual health.
  • Testosterone: The primary androgen found in both men and women, essential for muscle mass, bone density, and overall well-being.
  • DHT (Dihydrotestosterone): A more potent form of testosterone found in both men and women, linked to male pattern baldness and playing a significant role in the development of male characteristics.

When these hormones are bound to SHBG, they can’t bind to cells and exert their effects. Sex hormones need to be unbound and free in the blood to have an impact. In this way, SHBG helps regulate hormone levels by controlling the availability of these key hormones in the bloodstream.

The Importance of Mitochondrial Function for SHBG Production

Mitochondria are the powerhouses of every cell, essential for multiple vital functions. Their main job is to convert sugars, fats, and proteins into energy in the form of ATP (adenosine triphosphate). When it comes to liver health, efficient mitochondrial function becomes even more crucial.

SHBG, or sex hormone-binding globulin, is produced primarily in the liver. This protein plays a key role in regulating hormone levels by binding to sex hormones, like testosterone and estrogen. But what does mitochondrial function have to do with SHBG production?

Key Roles of Mitochondria in SHBG Production

  1. Energy Production:
    • The production of SHBG is an energy-demanding process. Mitochondria generate the necessary ATP to fuel this process, ensuring that the liver can produce adequate levels of SHBG.
  2. Cellular Health:
    • Healthy mitochondria promote overall cellular health. They protect cells from oxidative stress and damage, which is essential for the liver to function optimally and maintain adequate SHBG levels.
  3. Nutrient Utilization:
    • Mitochondria require essential nutrients such as antioxidants and B vitamins to function efficiently. These nutrients help prevent cellular damage and enhance energy production, both of which support healthy SHBG synthesis.
  4. Detoxification:
    • The liver’s role in detoxification is bolstered by robust mitochondrial activity. Efficient detoxification processes support overall hepatic health, which in turn sustains normal SHBG production.

In summary, efficient mitochondrial function is indispensable for the healthy production of SHBG in the liver. By ensuring that the cells have the energy and protection they need, mitochondria support a vital aspect of hormone regulation.

What Does SHBG Do for Men?


SHBG regulates how much of a particular sex hormone is available for the body. When levels are low, more of these hormones are available. However, when levels are high, the opposite occurs. SHBG binds sex hormones together, which renders them unusable. The only hormones the body can use are those that SHBG doesn’t bind.

SHBG levels must be within a certain range. When they’re either too high or too low, men can experience a wide range of adverse conditions. This highlights the need to ensure that your levels are optimal.

What Is the Normal SHBG Range for Men?


The normal range for SHBG in healthy men is 10 to 57 nanomoles per liter (nmol/L). Why a guy’s level falls is related to a few different factors. The most common factors for men that can affect their SHBG levels include:

  • Age
  • Weight
  • Genetics
  • Metabolism


SHBG levels for men are typically lower than those in women. However, as men age and their testosterone levels naturally decline, their SHBG levels will increase. This is normal; however, a man’s SHBG levels could sometimes be too high or too low. Both ends of the spectrum can cause men’s health issues.

Signs of Low SHBG Levels in Men

Low levels of SHBG in men mean that there are more sex hormones available for the body’s use. While you may think this is good, all hormones must be within a certain healthy range. When out of balance, a host of negative effects can occur.

Since SHBG controls how much of a particular sex hormone is available for the body, low levels of SHBG can lead to excess available testosterone. Higher-than-normal testosterone levels can cause:

  • Mood swings
  • The retention of fluids
  • Unusual development of acne, both on the face and body
  • An increase in appetite and unwanted weight gain

Low levels of SHBG can also affect how much estrogen is available for your body. Low SHBG levels can result in higher levels of estrogen in men. High levels of estrogen can lead to:

  • Erectile dysfunction (ED)
  • Lower or loss of sexual desire
  • Loss of energy
  • Loss of muscle mass
  • Abnormal breast tissue growth (Gynecomastia)

Several different factors can cause low SHBG levels. The most common causes of low SHBG include:

  • Obesity
  • Type 2 diabetes
  • Hypothyroidism
  • Fatty liver disease
  • Steroid use

When dealing with low SHBG and elevated hormone levels, it is essential to evaluate several key factors:

  • Evaluate Medication Impact: Review the use of steroids and other medications that may affect SHBG levels.
  • Adopt Diet and Lifestyle Changes: Implement strategies to manage blood sugar levels, reverse insulin resistance, and achieve a healthy weight. A balanced diet and regular exercise are crucial.
  • Increase Exercise: Regular physical activity promotes SHBG production, helping to balance hormone levels.
  • Support Liver Health: Enhance liver detoxification pathways to clear excess hormones and support overall liver function.
  • Consider Supplements: Certain supplements can help balance hormones and lower SHBG levels. Inositol, spearmint, licorice, and white peony are some options. It’s important to work with a functional medicine practitioner to choose the right supplements for your specific needs.


Signs of High SHBG Levels in Men


Just as low levels of SHBG can cause unwanted health issues in men, the same can be said for when they’re too high. High SHBG levels result in the body not having enough sex hormones available for use. High SHBG levels mean less testosterone for men. Lower than normal testosterone levels can cause:

  • Infertility
  • Loss of sex drive
  • Decreased energy
  • Erectile dysfunction
  • A reduction in testicle size
  • Bone density and muscle mass reduction


High SHBG levels could come from various reasons. A possible culprit could be liver disease since most of the body’s SHBG is produced in the liver. Some of the most common culprits for high SHBG levels also include:

  • Anorexia or other eating disorders
  • Hyperthyroidism
  • Low growth hormone levels

Factors to Consider When Lowering High SHBG Levels

When addressing elevated SHBG (Sex Hormone Binding Globulin) levels, several key factors should be evaluated to ensure an effective approach.

1. Identify Underlying Health Conditions

One primary step is to test for medical conditions that may contribute to high SHBG levels, such as hyperthyroidism or liver dysfunction. Both conditions can drive SHBG production, necessitating a tailored treatment plan.

2. Review Medication Use

Certain medications can influence SHBG levels. It’s crucial to evaluate any current prescriptions and discuss with a healthcare provider whether these could be contributing factors.

3. Maintain a Healthy Body Weight

Body weight management plays a significant role. Ensuring you maintain a healthy weight through balanced nutrition can lower SHBG levels. This includes consuming sufficient protein, as low protein intake and being underweight are linked to higher SHBG and lower sex hormone levels.

4. Incorporate Natural Remedies

Natural remedies can support SHBG reduction. For example, nettle leaf is known to help decrease SHBG levels naturally. Always consult with a healthcare provider before starting any new herbal treatments.

5. Support Hormone Levels

Supporting hormone levels with herbal medicine, supplements, or bioidentical hormone replacement therapy can be beneficial. Working with a healthcare professional, you can determine the best strategy to meet your body’s specific needs.

By addressing these factors, individuals can effectively work towards lowering high SHBG levels, promoting overall hormonal balance and well-being.


What Should I Do if My SHBG Levels Are Unbalanced?


Unfortunately, the lists of symptoms for both high and low levels of SHBG are varied, and it’s impossible to diagnose based on symptoms. Unbalanced hormone levels can cause too many issues to be properly identified without first seeking an expert opinion. Imbalances in hormones and other biomarkers can send out numerous red flags, each one pointing to a different condition.

The only way to ensure your SHBG levels are within the acceptable range is to have a blood test performed. You can ask your physician to schedule blood tests to determine whether your hormones are imbalanced.

However, there’s an easier and less painful way to check your SHBG levels and other important hormones and biomarkers. You can order an in-home testing kit for SHBG levels and also these other hormones and biomarkers:

  • Total Testosterone
  • Free Testosterone
  • Luteinizing hormone
  • Estradiol
  • Prostate-specific antigen (PSA) – Prostate cancer screening


After sending your sample using a nearly painless device, you’ll receive a full report of the tested hormones and biomarkers. Once you understand your hormonal levels, one of the Vitality Rx healthcare professionals can determine which treatment will provide the best results. You’ll receive your test results digitally and can schedule an online video call lab review with a men’s healthcare professional.

Are There Any Natural Methods to Help Men Maintain Normal Hormone Levels?


Fortunately, there are several ways to maintain healthy hormone levels.

Maintain a Protein Rich Diet


Consuming protein with each meal is required to stay healthy regardless of hormonal levels. Proteins provide you with essential amino acids that your body cannot produce independently. However, our bodies also need to produce peptides. The proteins you eat can influence the hormones that control appetite. A high-protein diet is likely to help lower SHBG levels.

Exercise Regularly


Any vigorous physical activity will strongly influence hormonal health. Regular exercise can not only improve blood flow to the muscles, but it can also increase hormone receptor sensitivity. Almost everyone knows a sedentary lifestyle isn’t healthy, but it can also negatively affect hormonal balance. A lifestyle without movement can cause liver problems, and since the liver is the body’s main source of SHBG, a damaged liver will affect SHBG levels.

Maintain a Healthy Weight


Obesity and abnormal weight gain can be linked to hormonal imbalances, typically related to a lack of testosterone, but could be due to other culprits. The benefits of a healthy body weight and BMI (Body Mass Index) with the help of proper nutrition and healthy exercise routines go well beyond hormonal health. They are crucial for optimal overall physical and emotional health.

Consider Natural Remedies

Use Natural Remedies: Incorporate natural remedies such as nettle leaf or Boron, which can help decrease SHBG levels. This offers a more holistic approach to managing hormone levels.

Support Hormone Levels

Support your hormone levels by optimizing testosterone and the testosterone to estrogen ratio through an integrative program that combines holistic and conventional medicine to reboot and rebalance hormones.

Annual Checkups


The importance of regular checkups with your primary healthcare physician cannot be stressed enough. Maintaining an open dialog with your doctor is key to staying fit and healthy and helping to diagnose health issues early. Men should openly discuss sexual dysfunction, hair loss, and other conditions that could be linked to imbalances in SHBG or other hormones.

Who Should Check Their SHBG Levels?


Typically, men should have their SHBG levels tested if they’re experiencing any issues caused by too much or too little testosterone. The list of symptoms for testosterone imbalances can be quite lengthy. However, some are more common than others. Understanding your SHBG levels is crucial to beginning a course of treatment that will be most beneficial.

Men with one or more of the following conditions make excellent candidates for SHBG testing:

  • Low sex drive
  • Fertility issues
  • Inability to achieve or maintain an erection
  • Difficulty losing weight
  • Mood swings
  • Aggressive behavior
  • Abnormal body hair growth or acne


In general, men with difficulties maintaining an erection or those who believe they may have fertility issues can get quality information about their SHBG and testosterone levels by asking their men’s healthcare professional for a hormone level test. Fortunately, these tests will also produce results from other hormones and biomarkers, which can present an overall picture of your hormonal health.

The Importance of Sex Hormone Binding Globulin Levels: The Bottom Line


As men age, it’s normal for us to experience lower testosterone levels. This is a natural part of the aging process. Unfortunately, for some men, the level dips below where it should be and can cause several different health-related conditions, each of which is difficult to find its root cause. However, it’s important to understand why this hormone’s level is dropping and if it’s related to SHBG levels.

Men with high levels of SHBG will have lower usable testosterone in their system, along with other necessary hormones. They could experience various symptoms, from erectile dysfunction to excessive mood swings to weight gain. However, from a medical viewpoint, it can be difficult to understand why these conditions are occurring.

Fortunately, ordering an at-home hormone test kit can easily pinpoint imbalances in men’s hormone biomarkers. Obtaining a sample is less painful than the old-fashioned finger prick method and can be done in the privacy of your own home. Once the sample has been processed, you can discuss the results with a men’s healthcare professional and determine if you require treatment.

SHBG: Frequently Asked Questions


Do you have more questions about the Sex Hormone Binding Globulin? Look below and get the answers you need!

  1. Is it better to have a higher or lower SHBG level?
    Having lower levels of SHBG is associated with several health conditions in both men and women, such as heart disease, type 2 diabetes, and high blood pressure. On the other hand, excessively high SHBG can be troublesome, as it reduces the availability of free testosterone.
  2. Does low SHBG influence fertility in men?
    When SHBG levels are low, it reduces sperm count and sperm mass, consequently increasing the risk of male infertility.
  3. Can you balance your SHBG levels with food and supplements?
    If you wonder whether some foods affect SHBG, the short answer is yes.

Consuming cruciferous vegetables like broccoli, cauliflower, Brussels sprouts, cabbage, curry kale, and bok choy aids the metabolism of excess estrogen and reduces SHBG levels. Moreover, eating more protein with every meal also decreases your excess SHBG levels. A third method of keeping your rampant SHBG levels in check is using supplements such as vitamin D, fish oil, zinc, magnesium, calcium, and boron.

On the other hand, a lower-calorie diet, regular exercise, and a medically-supervised weight loss plan greatly contribute to the increase of low SHBG levels.

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