The Sneaky Hormones That Keep You From Losing Weight
Is your body not responding the way it used to, to diet and exercise? If so, you’re not along. You and many other women may be experiencing hormonal imbalance issues that keep you from meeting your goals.
Many women eventually notice something frustrating happening with their bodies.
You’re exercising…
Eating reasonably well…
You’re trying to stay active.
And yet…
- The scale won’t move.
- Building muscle feels harder than it used to.
- Your body just doesn’t respond the same way anymore.
Hormones That Affect Muscle and Weight in Women

It’s misery. Perhaps you think it’s because of age, or something wrong with your diet. So you try and try again to no avail. Doctors tell you that your labs look “normal”. But are they?
But sometimes the bigger conversation is about hormones, but focused on your hormones being optimal–not just clinically accurate.
Hormones go beyond estrogen and testosterone. The body uses different hormones to send messages through the body. Hormones control many systems that affect metabolism, muscle growth, fat storage, and energy levels.
When they shift—even slightly—it can change how your body responds to diet and exercise.
Hormones That Affect Muscle Growth in Women
Muscle growth doesn’t just come from lifting weights. Hormones help determine how easily your body can build and maintain muscle. Several hormones play important roles:
Testosterone
Even though testosterone is often labeled a “male hormone,” women produce it too. Women also need testosterone for a healthy reproductive system.
Testosterone helps support:
- Muscle development
- Strength
- Energy
- Libido
- Motivation
When testosterone levels are lower, some women notice:
- Difficulty building muscle
- Fatigue during workouts
- Lower physical strength
- Reduced motivation to exercise
- Difficulty losing fat
If you’re curious about how testosterone works in the female body, you can read more in our guide to low testosterone in women and its symptoms.
Growth Hormone
Growth hormone helps your body repair and rebuild tissue after exercise. It supports muscle recovery and maintenance. Healthy sleep and resistance training both help support natural growth hormone release.
Estrogen
Estrogen is often associated with reproductive health, but it also plays a role in muscle recovery and joint health.
When estrogen levels shift—especially during perimenopause or menopause—many women notice changes in muscle tone and recovery depending on where their hormonal levels are.
SBGH Hormone
SBGH hormone is a liver-produced protein that binds to sex hormones in the liver. This hormone primarily works with testosterone and estrogen, regulating their transport and bioavailability throughout the body.
If the body is overloaded with SBGH Hormone, this could mean that your sex hormones are held hostage and are not available for the body to use.
This means, this hormone will trap testosterone and estrogen in the liver, instead of allowing your body to use it!
How are hormonal imbalances treated?
If your levels are not optimal, hormone replacement therapy for women or even a change in birth control is frequently prescribed to bring your hormones into their optimal levels.
The key is finding that they are at optimal levels–please refer to your medical practitioner for advice.
Hormones That Affect Weight in Women
Weight regulation is also influenced by several hormones working together. If one of them changes, your metabolism may respond differently than it used to.
Cortisol
Cortisol is often called the stress hormone. When cortisol stays elevated for long periods, it can affect:
- Fat storage
- Appetite
- Energy levels
- Sleep quality
Chronic stress may contribute to stubborn weight changes that don’t respond to diet alone. If you find you are fighting stress–vesus managing it–you may want to consider having these levels checked by your medical practitioner.
Insulin
Insulin helps regulate blood sugar and fat storage.
When the body becomes less sensitive to insulin, it may store more energy as fat. This is why insulin balance is often discussed in conversations about metabolism and conditions like PCOS.
Not to mention, imbalances of sex hormones can cause PCOS-like symptoms.
Insulin resistance is a common cause of inability to lose weight, and can be managed easily with an inexpensive medication.
Thyroid Hormones
Your thyroid plays a major role in controlling metabolism.
If thyroid hormone levels shift, it can affect:
- Energy
- Body temperature
- Weight regulation
- Fatigue levels
Why Hormone Symptoms Can Feel Confusing
Hormones rarely change in isolation.
When one hormone shifts, it can influence several others. That’s why symptoms like fatigue, weight changes, low libido, or difficulty gaining muscle can overlap with different hormonal conditions.
For example, some women experience symptoms similar to PCOS even if they don’t have a diagnosis.
Understanding the full hormone picture can help explain why your body feels different.
My Doctor Isn’t Listening–What do I do?
If you’ve noticed persistent changes like:
- difficulty losing weight
- trouble gaining muscle
- low energy
- irregular cycles
A medical professional can determine whether a hormone panel for women could provide helpful information about what your body is experiencing.
Sometimes that means finding a new practitioner. If your conventional practitioner doesn’t seem keen to test, request that they note it in your chart. At Peach Kisser, we humbly suggest finding functional medicine doctor.
These are practitioners that focus more on optimizing the body, versus treating acute issues. Functional medicine practitioners tend to treat the whole person.
Hormone testing doesn’t mean something is wrong. It simply gives you more insight into how your body works.
A Reminder
Bodies change over time.
Muscle, weight, energy, and metabolism are influenced by many factors—including hormones, sleep, stress, and lifestyle.
Understanding how hormones affect muscle and weight can be one step toward listening more closely to what your body is telling you.
Disclaimer
The information provided on this blog is intended for educational and informational purposes only. It is not medical advice and should not be used as a substitute for professional medical guidance, diagnosis, or treatment.
Always consult a qualified healthcare professional or licensed medical practitioner regarding any questions you may have about your health, wellness, or medical conditions. Never disregard professional medical advice or delay seeking it because of something you have read on this website.
The content on this blog reflects personal opinions and general information only, and reliance on any information provided here is solely at your own risk.
