Root Cause Testosterone Care for Men
Functional Medicine Treatment for Low Testosterone: Beyond Replacement Therapy
Low testosterone is significantly underdiagnosed because standard testing checks total testosterone alone and stops there. Men with suboptimal levels experience fatigue, body composition changes, mood instability, and reduced drive. Functional medicine treatment goes beyond the single number to find the actual cause. In-person in Marquette, MI and virtual in Michigan.
Years of clinical experience
Why Standard Testosterone Testing Falls Short
Total Testosterone Is Only Part of the Picture. Functional Testing Sees the Rest.
Total testosterone tells you how much is in circulation. It does not tell you how much is biologically available, how fast aromatase is converting it to estrogen, or whether LH and FSH signaling is functioning correctly. Functional medicine treatment for low testosterone evaluates all of these, along with cortisol, thyroid, and genetic testing. In-person in Marquette, Michigan and virtually in Michigan. Related: men’s hormone health.
- Total and free testosterone, SHBG, estradiol, LH, and FSH for a complete testosterone production and metabolism picture
- InBody 570 body composition analysis to track muscle, fat, and visceral fat changes through treatment
Is This Right for You
Functional Medicine Treatment for Low Testosterone Works for Men Who Want to Address the Root Cause, Not Just Replace the Hormone

Persistent Fatigue Despite Adequate Sleep
Low testosterone is one of the most common identifiable causes of chronic fatigue in men over 35. It is frequently missed because standard fatigue workups do not include a complete hormone evaluation.

Loss of Motivation, Drive, or Competitive Edge
Testosterone directly affects dopamine signaling, which drives motivation and goal-directed behavior. When testosterone is low, motivation deficits are physiological, not a matter of discipline.

Increasing Body Fat and Loss of Muscle
Testosterone is an anabolic hormone that promotes muscle maintenance and fat oxidation. Low testosterone shifts body composition toward fat gain and muscle loss independent of calorie intake.

Mood Instability, Irritability, or Low-Grade Depression
Low testosterone in men produces mood symptoms frequently misdiagnosed as depression or burnout. Restoring testosterone often resolves these symptoms when hormonal imbalance is the root cause.

Low Libido or Reduced Sexual Function
Testosterone is the primary driver of libido in men. Combined with estrogen imbalance and cortisol dysregulation, low testosterone is the most common identifiable hormonal cause of reduced sexual drive.

Men Outside Marquette Who Want Expert Functional Medicine Care
Functional medicine testosterone evaluation goes far beyond what most providers offer. Monarch FM delivers this level of care through complete virtual consultations for men across Michigan.
Over 22 years of medical experience ★★★★★
The Monarch FM Process
How We Approach Functional Medicine Treatment for Low Testosterone at Monarch FM
Testosterone does not exist in isolation. Its production, availability, and efficacy depend on a cascade of hormonal interactions involving the hypothalamic-pituitary-gonadal axis, thyroid function, cortisol, insulin, and estrogen. Effective low testosterone treatment maps this full cascade before designing any protocol.
- 22 Years of Clinical Experience
- MMS | PA-C | FMACP Certified Provider
- In-Person in Marquette, MI | Virtual in Michigan
Complete Testosterone and Hormone Evaluation
We measure total testosterone, free testosterone, SHBG, estradiol, LH, FSH, prolactin, DHEA-S, cortisol, and a full thyroid panel. We add genetic testing for aromatase activity variants, androgen receptor sensitivity polymorphisms, and metabolism genes that determine how your body handles testosterone. This is what allows us to identify why your testosterone is low, not just confirm that it is.
Identifying the Root Cause
Low testosterone has several possible origins. Primary hypogonadism reflects a production problem in the testes. Secondary hypogonadism reflects a signaling problem from the hypothalamus or pituitary. High SHBG reduces bioavailability despite normal total levels. Elevated estradiol from aromatase activity suppresses the HPG axis. Julie identifies your specific pattern and builds the protocol around the actual cause of deficiency.
Personalized Low Testosterone Protocol
Your protocol is built around the identified root cause and your specific lab and genetic profile. It may include lifestyle and nutritional interventions to optimize natural testosterone production, supplementation targeting identified deficiencies, support for HPG axis signaling, and where clinically indicated and patient-preferred, testosterone replacement therapy with appropriate monitoring and aromatase management.
Body Composition and Hormone Monitoring
Progress is tracked through repeat hormone panels and, for in-person patients, InBody 570 body composition analysis, which measures changes in muscle mass, fat, and visceral fat over time. Body composition is one of the most objective indicators of testosterone optimization in men. Virtual patients receive the same clinical follow-up throughout the program.
A Smarter Approach to Men's Testosterone
Low Testosterone Has a Root Cause. Replacing the Hormone Without Finding It Is a Temporary Fix.
Functional medicine treatment for low testosterone is not opposed to TRT. But TRT applied without identifying why testosterone is low creates a dependency without addressing the underlying dysfunction. Related: men’s hormone health, hormone treatment overview. In-person in Marquette, MI. Virtual in Michigan.
Questions & Answers
Frequently Asked Questions
What are the symptoms of low testosterone in men?
Low testosterone in men produces a range of symptoms spanning energy, body composition, mood, and sexual function. The most common include persistent fatigue that does not improve with adequate sleep; loss of motivation and drive, often described as no longer caring about previously important goals; body composition shifts including increasing abdominal fat and decreasing muscle mass despite unchanged activity; mood instability including irritability, low-grade depression, or emotional flatness; reduced libido and changes in sexual function; and cognitive changes including difficulty concentrating or mental fog. Many of these symptoms overlap with depression, burnout, and thyroid dysfunction, which is why a complete hormone evaluation is essential. At Monarch Functional Medicine, we evaluate the full picture through advanced labs and genetic testing.
What is the difference between total testosterone and free testosterone?
Total testosterone measures all testosterone in circulation, including the portion bound to proteins (primarily SHBG and albumin) and therefore not bioavailable to tissues. Free testosterone is the fraction that is unbound and biologically active. A man can have total testosterone in the normal range while having low free testosterone if SHBG is elevated, which binds testosterone and reduces its bioavailability. This is a common clinical situation that standard total testosterone testing misses entirely. At Monarch FM, we test free testosterone alongside total testosterone, SHBG, estradiol, LH, FSH, and other relevant markers to get the complete picture of your testosterone status.
What causes low testosterone in men?
Low testosterone in men has several possible causes. Primary hypogonadism involves a production problem at the testicular level, reflected in elevated LH and FSH. Secondary hypogonadism involves impaired signaling from the hypothalamus or pituitary, often caused by obesity, chronic stress, sleep apnea, or opioid use, and is reflected in low or normal LH and FSH. High SHBG reduces free testosterone availability despite normal production. Elevated estradiol from excess aromatase activity suppresses the HPG axis and reduces testosterone production. Thyroid dysfunction and chronic cortisol elevation both impair testosterone production. Identifying which of these mechanisms is operating in your case is the starting point of effective treatment. Book a free strategy call to discuss yours.
Should I start testosterone replacement therapy?
Whether TRT is appropriate depends on the root cause of your low testosterone, your free and total levels relative to symptoms, your fertility plans, and your specific genetic and metabolic profile. TRT is highly effective for men with primary hypogonadism or secondary hypogonadism that does not respond to root-cause interventions. However, TRT suppresses the body’s own testosterone production and affects fertility, which means it is not appropriate as a first-line approach for every man. At Monarch FM, we evaluate the full hormonal picture before recommending TRT, and only recommend it when the clinical evidence supports it. See also: Men’s Hormone Health.
Can testosterone naturally increase without TRT?
Yes, for men whose low testosterone is driven by secondary or modifiable causes. Addressing insulin resistance has one of the strongest natural effects on testosterone production. Reducing excess aromatase activity through weight management and specific nutritional interventions reduces estrogen-driven testosterone suppression. Optimizing sleep, since the majority of testosterone is produced during deep sleep, often produces measurable increases. Correcting thyroid dysfunction and cortisol dysregulation removes their inhibitory effects on testosterone synthesis. Targeted supplementation with zinc, vitamin D, ashwagandha, and other evidence-based compounds can support natural production where deficiencies or functional gaps exist.
Does low testosterone affect mood in men?
Yes, significantly. Testosterone modulates dopamine receptor sensitivity and dopaminergic signaling in the limbic system, which governs motivation, reward, and emotional resilience. When testosterone is low, mood symptoms including low motivation, irritability, emotional blunting, and mild to moderate depression are common and well-documented. Many men with low testosterone are prescribed antidepressants without hormone evaluation, which treats the downstream neurotransmitter effect without addressing the upstream hormonal cause. See our page on hormonal mood swings for more on the relationship between hormones and mood.
Is low testosterone treatment available virtually at Monarch FM?
Yes. Monarch Functional Medicine provides complete virtual low testosterone care for men anywhere in Michigan. Lab work is coordinated through a draw site near you, and all consultations, protocol reviews, and follow-up appointments are conducted via telehealth. The full clinical evaluation and protocol design are available remotely. If you are outside Marquette, Michigan, virtual care is a complete clinical option. Start with a free 15-minute strategy call.
How do I start low testosterone treatment at Monarch FM?
Book a free 15-minute strategy call to discuss your symptoms and determine whether our approach is a fit. No referral is needed. If you have existing lab results, bring them to the call. From there, the 12-Week Hormone and Metabolism Reset (The 12 Week Reset is our foundational program, and where every patient begins. Comprehensive bloodwork (including hormones) and genetic testing give us a clear picture of what’s driving how you feel — so we can build your specific plan across Nutrition, Sleep, Stress, Supplements, and Mindfulness, the foundation functional medicine builds on), is the entry point for comprehensive hormonal care, available in-person in Marquette, Michigan and virtually for men across Michigan.
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Beyond the Single Number
Testosterone Optimization Starts With Understanding Your Whole Hormonal System.
At Monarch FM, every low testosterone evaluation covers free and total testosterone, SHBG, estradiol, aromatase genetics, LH, FSH, thyroid, and cortisol. Julie McDonald identifies the specific mechanism driving your deficiency before recommending any intervention, including TRT. In-person in Marquette, MI and virtually in Michigan.
Ready to Start
Low Testosterone Has Specific, Identifiable Causes. Let's Find Yours.
Functional medicine treatment for low testosterone at Monarch FM starts with a complete evaluation of your hormonal and metabolic picture, then builds a protocol around the actual cause of your deficiency. In-person in Marquette, MI or virtually from anywhere in Michigan.
Join hundreds of patients who have reclaimed their energy, hormones, and health.