How to Gain Muscle with Hormone Conditions
By Dr. Fiona McCulloch, ND, peer reviewer of the 2023 International Evidence-Based PCOS Guidelines and author of 8 Steps to Reverse Your PCOS
The standard advice, protein targets, creatine, progressive overload, is not wrong. But it was developed for people with normal hormonal function. When estrogen is declining, insulin resistance is impairing nutrient uptake into muscle cells, or cortisol is chronically elevated, the same strategies produce different results. The missing variable is not effort. It is the hormonal picture.
White Lotus Clinic’s naturopathic doctors work with women who have PCOS, perimenopause, and menopause to identify the hormonal factors affecting muscle and body composition.
You have been training consistently. You are eating enough protein. You may have followed a progressive program for months. And yet the results are not what you would expect, or muscle that was there before is disappearing despite real effort.
Some readers have been told this is simply a consequence of aging. Others have encountered social media content suggesting that exercise raises cortisol harmfully, worsens PCOS hormones, or raises testosterone, and have scaled back or stopped training entirely as a result. Both of these are understandable responses to incomplete information. This article addresses both directly.
Why Hormone Conditions Make Building Muscle Harder
Estrogen plays a direct structural role in activating satellite cells, the stem cells responsible for repairing and rebuilding muscle tissue after exercise. When estrogen declines in perimenopause and menopause, satellite cell activity slows, and the hypertrophy process that follows a training session becomes less efficient. The same training volume that reliably built muscle at 35 may produce noticeably less adaptation at 48, not because effort has decreased, but because the hormonal environment supporting recovery has changed.
Insulin Resistance and Nutrient Uptake into Muscle
In insulin-resistant states, which are common in PCOS and increasingly common after menopause, the body’s ability to transport glucose into muscle cells is reduced. Muscle cells rely on glucose transporters called GLUT4 to pull glucose in from the bloodstream. When insulin resistance is present, this process is less efficient, protein synthesis is reduced, and the inflammation associated with elevated insulin further undermines muscle recovery. Eating the right amount of protein can still produce poor results when insulin resistance has not been addressed. For women with PCOS specifically, functional insulin deficiency can be an underlying factor worth assessing.
Chronic Cortisol Elevation
Prolonged cortisol elevation from sleep disruption, under-recovery, or sustained psychological stress creates a catabolic hormonal environment that competes with muscle-building signals. This is distinct from the cortisol response that occurs during exercise itself, which serves an entirely different and purposeful biological function. That distinction is covered in detail in the exercise safety section below.
Thyroid Function: The Prerequisite That Fitness Advice Misses
Even subclinical hypothyroidism reduces metabolic rate and exercise tolerance in ways that are often attributed to effort, age, or lifestyle rather than thyroid function. A key clinical sequencing point: beginning an insulin resistance management or exercise protocol while hypothyroid means the metabolic environment is not ready for it. Patients in this situation will not be able to burn fat and build muscle as effectively, regardless of how sound the training and nutrition protocol is. Correcting thyroid function and iron status first creates the physiological conditions in which an exercise protocol can produce the results the research would predict.
Building Muscle with PCOS: The Advantage Most Practitioners Do Not Mention
Most women with PCOS expect their condition to make exercise harder across the board. The full picture is more nuanced.
The androgen profile associated with PCOS, particularly elevated testosterone and DHEA-S, is associated with greater muscle strength and a longer window for building and maintaining muscle mass. DHEA-S, which Dr. Fiona McCulloch describes as a longevity hormone, tends to remain elevated at older ages in women with PCOS compared to their non-PCOS peers. Research from the University of Skövde (2024) found that women with PCOS have greater muscle strength irrespective of body composition, providing external research support for this clinical observation.
This advantage applies across PCOS phenotypes. Even women with PCOS whose androgen levels fall within the normal reference range appear to maintain those levels for longer than women without PCOS. The result is a longer muscle-building window that extends into the years when most women are experiencing accelerated muscle loss associated with menopause.
This does not mean PCOS removes the need for a hormonal strategy. Insulin resistance, which is common in PCOS, still creates real barriers. But the starting position may be considerably stronger than most patients are told. For context on the PCOS and perimenopause overlap or on how DHEA-S and adrenal androgens in PCOS affect this picture, see those articles.
Practical notes for training with PCOS:
- Prioritize lower-body resistance exercises. The large muscles of the legs and glutes carry a high concentration of GLUT4 transporters, making them the most efficient target for improving insulin sensitivity through exercise.
- Time carbohydrate intake around training sessions. Consuming carbohydrates in the window before or after exercise takes advantage of the period when insulin sensitivity is highest, improving glucose uptake into muscle and supporting training quality.
- Progressive overload remains the foundational mechanism. Consistent incremental increases in training load over time drive adaptation. No exotic protocol is required.
Perimenopause, Menopause, and Muscle Loss: What Is Actually Happening
Estrogen does not only regulate reproductive function. It plays a direct role in the muscle repair cycle, specifically in activating the satellite cells that respond to training stimulus and carry out the work of hypertrophy. As estrogen declines in perimenopause and menopause, this repair process slows. A training session that previously triggered measurable adaptation may now produce a muted response, even with the same effort, the same nutrition, and the same program. This is a biological mechanism, not a personal failure.
Research published in peer-reviewed sports science literature indicates that post-menopausal women require larger training volumes than pre-menopausal women to achieve the same hypertrophic response. Studies suggest that exceeding six to eight sets per muscle group per week may be necessary to achieve meaningful muscle growth after menopause. Most women are training to pre-menopausal volume standards that no longer reflect their hormonal context. The capacity for adaptation does not disappear after menopause. The volume threshold shifts.
Hormone replacement therapy can be one component of a menopause muscle-maintenance strategy, as it addresses the estrogen mechanism underlying the training adaptation gap. For women who are candidates, this is worth discussing as part of a comprehensive assessment. It is also worth noting that it is never too late to begin strength training. Research on resistance training benefits extends clearly into the 60s and beyond. The question is not whether it is too late. It is whether the right protocol is in place. Learn more about the comprehensive menopause program at White Lotus Clinic, or about managing joint pain alongside muscle changes in menopause.
Does Exercise Raise Cortisol, and Will It Worsen Your Hormones?
A concern circulating widely in PCOS communities is that strength training spikes cortisol, which raises testosterone and worsens PCOS hormonal balance. The concern sounds physiologically plausible, and it has led many women to reduce or stop training entirely. That conclusion deserves a direct, evidence-based response.
Every type of exercise studied in PCOS populations has been shown to be beneficial, to varying degrees. The fear that exercise raises cortisol in a way that harms PCOS hormones has not been supported by the research. Dr. Fiona McCulloch, a peer reviewer of the 2023 International Evidence-Based PCOS Guidelines, confirms this directly: the concern has not been validated by the evidence base. All studied exercise types have shown benefit for PCOS.
The cortisol released during exercise serves a specific biological purpose. It signals muscle tissue to prepare for regeneration and drives the repair and adaptation process that follows a training session. This is mechanistically distinct from the chronic cortisol elevation associated with sustained psychological stress and HPA axis dysregulation, where cortisol is persistently elevated without the purposeful regenerative signal. Conflating the two leads to a conclusion the evidence does not support. Perhaps most importantly: most studies examining exercise in PCOS patients show that regular exercise reduces testosterone levels. Not raises them.
Genuine overtraining, meaning a training load that exceeds individual recovery capacity over a sustained period, can elevate cortisol and impair muscle recovery. This is a real physiological state, but it requires a significant and sustained training volume to produce. The vast majority of people exercising three to five times per week are nowhere near an overtraining threshold. If questions about recovery capacity or individual training tolerance arise, those are worth discussing with a practitioner. They are not a reason to avoid training.
A Training and Nutrition Framework for Hormone Conditions
Protein Intake
The research-supported range for muscle protein synthesis is 1.6 to 2.2 grams of protein per kilogram of body weight per day. For a woman weighing 70 kilograms, that is approximately 112 to 154 grams of protein daily. Distributing intake across meals, rather than concentrating it in one or two large servings, appears to optimize protein synthesis more consistently throughout the day. One important nuance for women with insulin resistance or PCOS: protein synthesis efficiency is reduced when insulin resistance is significant, which means adequate protein intake matters even more in this context, not less. Consistent protein sources include eggs, poultry, fish, Greek yogurt, legumes, and tofu.
Resistance Training: Volume, Load, and Compound Movements
Progressive overload, the principle of systematically increasing training stimulus over time, remains the foundational driver of muscle adaptation regardless of hormonal status. A protocol of three to five sets of six to twelve repetitions, built around compound movements, is well-supported in the research. Compound exercises that recruit multiple large muscle groups are most efficient for both muscle development and metabolic benefit:
- Squats and leg press
- Deadlifts and Romanian deadlifts
- Bench press or incline dumbbell press
- Pull-ups or lat pulldown
- Rows (cable, barbell, or dumbbell)
For women who are post-menopausal or in late perimenopause, research suggests that exceeding six to eight sets per muscle group per week may be necessary to achieve hypertrophy. This is not a reason to avoid training. It is a reason to ensure training volume is calibrated to the current hormonal context rather than to pre-menopausal standards that may no longer apply.
Timing carbohydrate intake around training sessions, consuming carbohydrates in the period immediately before or after exercise, takes advantage of the window when insulin sensitivity is at its highest. This improves glucose uptake into muscle cells and supports training quality.
Insulin Resistance and Lower-Body Strength Training
Resistance training improves insulin sensitivity through a specific mechanism: it increases the expression of GLUT4 glucose transporters in muscle cells. When GLUT4 expression is higher, muscle cells can pull glucose in from the bloodstream more effectively, reducing the insulin demand on the body. Lower-body exercises are particularly valuable in this context because the large muscles of the legs and glutes carry the greatest concentration of GLUT4-sensitive tissue. Lower-body strength training, as Dr. Fiona McCulloch describes it, is insurance against insulin resistance. Squats, leg press, deadlifts, and lunges are among the most metabolically efficient exercises for women managing insulin resistance alongside PCOS or menopause.
Creatine Supplementation
Creatine monohydrate at five grams per day is among the most thoroughly researched supplements for muscle development, with consistent evidence supporting its role in strength, power output, and lean mass. Beyond its muscle-building role, creatine has emerging research support for insulin-sensitizing properties, which is of particular relevance for women with PCOS or metabolic insulin resistance. Supplement decisions, including whether creatine is the right starting point and whether it should be combined with other interventions, are individual. The most efficient approach is to identify the highest-priority interventions through lab assessment and address them in order. For broader context, see the article on supplements for insulin resistance. For mitochondrial and energy support relevant to PCOS, L-carnitine is another option worth discussing with a practitioner.
Sleep and Recovery
Muscle adaptation occurs during recovery, not during the training session itself. Sleep is when the hormonal environment for repair is most favorable, and disruption of sleep quality from perimenopause or chronically elevated cortisol directly impairs this process. If sleep disruption is persistent and affecting training capacity, it is a clinical variable worth addressing, not simply a lifestyle factor to manage around. For context on fatigue and its relationship to PCOS, see that article.
If the mechanisms described above reflect your experience, a naturopathic assessment can help identify which hormonal factors are most relevant to your specific situation.
What a Personal Trainer Cannot Check
A personal trainer provides movement expertise and programming. A naturopathic clinical assessment provides a different layer of information: the hormonal and metabolic context that determines how the body responds to exercise and nutrition in the first place. Either in isolation gives an incomplete picture.
A naturopathic assessment for body composition and hormone health typically includes:
- Insulin resistance markers, including fasting insulin and HOMA-IR, to assess how significantly insulin resistance is affecting metabolic function and muscle nutrient uptake
- Thyroid function, including TSH and free thyroid hormones, to identify hypothyroidism that may be reducing metabolic rate and limiting exercise response
- Iron status, including serum ferritin, as iron deficiency is a common and frequently overlooked factor that limits exercise capacity and recovery
- Hormonal panel including estrogen, testosterone, and DHEA-S, to understand the specific androgen and estrogen environment affecting body composition
- Comprehensive metabolic panel including liver function and cardiovascular markers, to assess the full context of metabolic health
The order in which these factors are addressed matters as much as identifying them. The clinical reasoning: beginning an insulin resistance protocol while hypothyroidism is present means the metabolic environment is not ready for it. Patients in this situation will not be able to burn fat and build muscle as effectively as the protocol would otherwise predict. Correcting thyroid function and iron deficiency first creates the physiological conditions in which an exercise and nutrition protocol can actually deliver the results the research supports. A personal trainer, a fitness app, and a generic online program share one structural limitation: none of them can check these prerequisites.
Common Questions
Does strength training raise cortisol, and will it worsen my PCOS or hormones?
This is one of the most widely circulated concerns in PCOS communities, and it deserves a precise answer. Every type of exercise studied in PCOS populations has been shown to be beneficial. The fear that exercise raises cortisol in a way that harms PCOS has not been supported by the research evidence. The cortisol released during a strength training session prepares muscles for regeneration and drives the repair process. It is not the same physiological state as chronic cortisol elevation from sustained psychological stress. Critically, most studies examining exercise in PCOS patients show that regular exercise reduces testosterone levels. Not increases them. Genuine overtraining can elevate cortisol, but the vast majority of people exercising regularly are nowhere near that threshold.
Can I build muscle if I have insulin resistance?
Yes. Insulin resistance changes the efficiency of muscle nutrient uptake, but it does not eliminate the capacity for muscle growth. Resistance training is one of the most effective tools for improving insulin sensitivity, through a mechanism involving GLUT4 glucose transporter expression in muscle cells. Prioritizing lower-body exercises, timing carbohydrate intake around training, and ensuring adequate protein intake are practical steps that work within an insulin-resistant context. Where insulin resistance is significant, a clinical assessment can identify whether additional factors, such as concurrent thyroid or iron issues, would improve the training response if addressed first.
Is it too late to start strength training at 45, 50, or older?
No. The capacity for muscle adaptation through resistance training continues well into the post-menopausal years, though the volume requirements may be higher than at younger ages. Research clearly demonstrates benefits from strength training in the 60s and beyond. For women with PCOS, the androgen advantage, including elevated DHEA-S and testosterone that persist longer than in non-PCOS peers, may actually extend the muscle-building window further. The relevant question is not whether it is too late. It is whether the program accounts for the current hormonal context.
Why am I losing muscle in perimenopause even though I am eating enough protein?
Adequate protein intake is necessary but not sufficient when estrogen is declining. Estrogen supports the satellite cells responsible for muscle repair and hypertrophy. As it falls, the repair process slows, and the same training volume produces less adaptation regardless of protein intake. If insulin resistance is also present, protein synthesis efficiency is further reduced. The protein recommendation is still correct. It is simply one part of a more complete picture that includes the hormonal environment in which that protein is being metabolized.
Does PCOS make it harder to build muscle?
PCOS has competing effects on muscle. The insulin resistance component, which is common in PCOS, can impair nutrient uptake into muscle cells and create an inflammatory environment that reduces recovery quality. At the same time, the androgen profile associated with PCOS, including elevated testosterone and DHEA-S, is associated with greater muscle strength and a longer muscle-building window. Research from the University of Skövde (2024) found that women with PCOS have greater muscle strength irrespective of body composition. Whether the net effect on individual training is easier or harder depends on the specific hormonal presentation, which is one reason a personalized clinical assessment is more useful than a general PCOS exercise rule.
What would a naturopathic doctor check that a personal trainer cannot?
Lab-based assessment of the factors that determine how the body responds to exercise and nutrition: insulin resistance markers (fasting insulin, HOMA-IR), thyroid function (TSH, free T3 and T4), iron status (serum ferritin), hormonal panel (estrogen, testosterone, DHEA-S), and a metabolic panel covering liver function and cardiovascular markers. Beyond identification, the clinical value is in sequencing: if hypothyroidism is present, beginning an insulin resistance protocol before addressing it means the metabolic conditions for effective fat burning and muscle building are not yet in place. Correcting the thyroid picture first allows the rest of the protocol to work as intended.
Do I need to come to Toronto?
White Lotus Clinic is based in Toronto and offers both in-person appointments and virtual consultations. Virtual appointments allow patients to work with the clinic from elsewhere in Ontario.
Is creatine safe with PCOS or hormone conditions?
Creatine monohydrate has one of the strongest safety profiles in the sports nutrition research and has been studied extensively across many populations. It also has emerging evidence for insulin-sensitizing properties that are particularly relevant for women with PCOS or metabolic insulin resistance. That said, which supplements are most appropriate, and in what order to address them, depends on the individual clinical picture. A consultation can help identify the most effective starting point based on lab results rather than a generic recommendation.
Meet our Medical Director, Dr Fiona McCulloch
The training and nutrition recommendations in this article are well-supported by research. Protein targets, progressive overload, compound movements, creatine, and recovery protocols are all evidence-based. If you have been applying them consistently and not seeing expected results, that is a clinical signal worth investigating, not because the approach is wrong, but because the hormonal context in which the body is working may not have been assessed.
A consultation at White Lotus Clinic can help identify the hormonal and metabolic factors most relevant to your situation and clarify what a targeted assessment would involve.
PCOS Naturopathic Assessment Menopause Program
White Lotus Clinic offers in-person appointments in Toronto and virtual consultations for patients across Ontario.
References
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- Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18.
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- Resistance training and body composition in menopausal women. PMC10559623. Frontiers in Physiology. 2023.
- Eriksson M, et al. Women with polycystic ovary syndrome have greater muscle strength regardless of body composition. University of Skövde. 2024.
- Teede HJ, Tay CT, Laven JJ, et al. Recommendations from the 2023 international evidence-based guideline for the assessment and management of polycystic ovary syndrome. J Clin Endocrinol Metab. 2023;108(10):2447-2469.