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Episode
How To Increase Your Testosterone Levels Naturally | Derek from MPMD
~233 min
Episode Brief·YouTube

How To Increase Your Testosterone Levels Naturally | Derek from MPMD

Rhonda Patrick
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TL;DR

The four things you'd lose by not watching

4 items

TL;DR

The four things you'd lose by not watching

4 items
1

Testosterone levels in men are declining, largely due to lifestyle factors like obesity, poor diet, and lack of sleep, rather than solely endocrine-disrupting chemicals.

2

Key supplements for optimizing testosterone, if deficient, include Vitamin D, Magnesium, and Zinc, potentially increasing total testosterone by 100-150 ng/dL.

3

Testosterone Replacement Therapy (TRT) should be considered only after exhausting natural interventions and confirming low levels with repeat measurements and symptoms, ideally under the guidance of a highly educated medical professional.

4

For hair loss, the most effective intervention is inhibiting DHT, primarily through drugs like finasteride or dutasteride, as minoxidil only stimulates growth and does not prevent miniaturization.

Protocols

Concrete recipes — what, when, how much, and why

8 items

Testosterone Measurement Best Practices

WhatMeasure total and free testosterone levels, ideally in the morning, fasted, and well-hydrated, avoiding biotin supplements.
WhenEarly morning (peak levels), fasted.
DoseRepeat measurements are crucial before making decisions.
For whomAnyone assessing their testosterone levels, especially before considering interventions.
WhyTestosterone secretion is pulsatile, peaking in the morning. Fasting and hydration ensure accurate readings. Biotin can interfere with assays. Repeat measures confirm findings due to variability.
CaveatsAvoid biotin-containing supplements. Ensure adequate hydration. Do not rely on a single reading; confirm with repeat measurements and symptom assessment.

The speaker outlines critical best practices for accurately measuring testosterone. He stresses that total testosterone reflects overall production, while free testosterone (typically 2-3% of total) is the biologically active form. Both are important. Measurements should ideally be taken early in the morning due to testosterone's pulsatile, diurnal rhythm, where levels are highest. Patients should be fasted and well-hydrated, and avoid biotin supplements, which can cross-react with assays and lead to inaccurate results. Crucially, he advises against making any treatment decisions based on a single reading, as levels can vary significantly. Repeat measurements, combined with a thorough assessment of symptoms, are essential to confirm low levels and determine the appropriate path forward, whether natural interventions or hormone therapy.

Mechanism

Testosterone is secreted in a pulsatile manner with a diurnal rhythm, peaking in the morning. SHBG (Sex Hormone Binding Globulin) and albumin bind most testosterone, rendering it inactive until dissociated. Free testosterone is unbound and readily available to target tissues. Biotin can interfere with immunoassay tests, leading to false readings. Hydration status affects hematocrit, which can influence perceived blood values.

So typically the best way to assess peak levels would be early in the morning and ideally you would have um not taken certain confounding variable supplements like biotin that can cross detect is you know estrogens and whatnot.

Also said
“So total testosterone is the number that most people are familiar with which reflects the total production that can be detected in your sample of blood that was taken.”— Defines total testosterone.
“The free testosterone number is just like freely circulating, not bound to binding proteins, and it's like ready and readily available to be used by target tissues.”— Defines free testosterone and its importance.
“Ideally, you would get a repeat measurement before you make any sort of especially before you make any sort of choices on uh path forward because you definitely want to get confirmation if you have a low reading or even one that's like mildly concerning.”— Emphasizes the importance of repeat measurements.

Optimizing Diet for Testosterone

WhatConsume a balanced diet with sufficient fat, carbohydrates, and protein, avoiding extreme deficiencies.
For whomAnyone looking to naturally optimize testosterone levels.
WhyFats provide cholesterol, the substrate for hormone production. Carbohydrates facilitate insulin signaling, which helps regulate SHBG. Protein supports muscle growth and recovery, indirectly improving body composition and hormones.
CaveatsAvoid extreme diets (e.g., totally fat-deficient, void of carbohydrates) unless clinically necessary and monitored.

The speaker highlights the critical role of a balanced diet in supporting natural testosterone production. He explains that adequate fat intake is essential because cholesterol, derived from dietary fats, serves as the foundational substrate for all steroid hormones, including testosterone. Carbohydrates are also crucial, not just for energy, but because insulinogenic signaling helps suppress Sex Hormone Binding Globulin (SHBG), ensuring more free, active testosterone is available. Without sufficient carbohydrates, SHBG can rise, reducing free testosterone. Finally, adequate protein intake is vital for muscle repair and growth, which in turn improves body composition and overall hormonal health. He cautions against extreme dietary approaches that eliminate entire macronutrient groups, as these can inadvertently hinder hormone production and availability.

Mechanism

Cholesterol, derived from fats, is the precursor for all steroid hormones. Insulin signaling, stimulated by carbohydrates, helps regulate SHBG, preventing excessive binding of testosterone and DHT. Protein provides amino acids necessary for tissue repair and muscle anabolism, which positively influences body composition and metabolic health, indirectly supporting hormone balance.

if you have a totally fat deficient diet I think that's you know of a macro distribution that would be reflective of something that's almost certainly going to hinder your capacity to produce hormones. Um, also if you have a void of carbohydrate intake diet, it would also be something that would inhibit freely circulating hormones from liberating themselves.

Also said
“there are like certain baseline requirements to serve as the substrate for producing cholesterol derived uh steroids in the body and these are all ultimately derived from cholesterol and then get cleaved and manipulated through enzyatic processes to make all the hormones in your body including but not limited to testosterone estradi etc.”— Explains the role of fat/cholesterol as a precursor for hormones.
“the insulinogenic signaling is somewhat necessary to facilitate a balance of free androgens, including free other hormones in the body that often go overlooked to actually do what they're supposed to do.”— Details the importance of carbohydrates for free hormone availability.

Resistance Training for Testosterone

WhatEngage in resistance training to boost testosterone levels.
For whomMen looking to naturally increase testosterone.
WhyWeightlifting and other forms of resistance training are the most directly impactful exercises for building muscle and bone, which are processes supported by testosterone.
CaveatsAdherence is key; choose an exercise regimen you can consistently stick to. Avoid overtraining or severe caloric deficits that can negatively impact hormones.

The speaker identifies resistance training as the most effective form of exercise for naturally boosting testosterone. He places it at the top of a hierarchy of exercise intensity, above HIIT and general movement, due to its direct impact on muscle and bone building, processes heavily reliant on testosterone. However, he emphasizes that 'adherence almost trumps optimal' – meaning that the best exercise is one that an individual can consistently stick to, rather than a theoretically perfect but unsustainable regimen. He also reiterates the caution against excessive training combined with inadequate fueling, which can lead to a state of malnourishment and subsequent hormone deficiency, as seen in extreme dieting for bodybuilding or endurance events.

I think it's kind of like in simplest way I could put it is like descending order of intensity essentially. So like you know weightlifting at the top and then you have like um some of your more like hit style workouts underneath that and then at the bottom of it would be like the most basic of I don't know barely exerting yourself but like getting out there and moving that is going to have the least impact in general and at the top it's going to be you know the muscle building facilitating processes the things that build bone etc. resistance training. That's going to be the most directly impactful.

Testosterone Replacement Therapy (TRT) for Men

WhatConsider TRT if natural interventions have been exhausted, structural issues are present, or there's a clear hormonal deficiency not responsive to other treatments.
For whomMen with clinically low testosterone and symptoms, especially those with primary hypogonadism or secondary hypogonadism unresponsive to lifestyle changes or other therapies.
WhyTRT can alleviate symptoms of low testosterone and improve quality of life when the body cannot produce adequate levels naturally or respond to stimulation.
CaveatsNot a first-line treatment. Requires comprehensive assessment by a highly educated medical professional. Risks include cardiovascular issues, polycythemia, prostate monitoring, and fertility suppression. Not a 'fountain of youth' – aims for symptom relief, not necessarily returning to 20-year-old levels. Be wary of clinics pushing aggressive protocols without proper assessment.

The speaker outlines the scenarios in which Testosterone Replacement Therapy (TRT) becomes a viable option for men. He stresses that it should be considered only after exhausting all natural interventions, such as optimizing diet, exercise, sleep, and addressing micronutrient deficiencies. TRT is most clearly indicated for primary hypogonadism, where the testes themselves are unable to produce testosterone, or for secondary hypogonadism where the pituitary signal is insufficient, and the testes do not respond to stimulation (e.g., with hCG). He emphasizes the importance of ruling out structural defects (like varicocele) and pituitary issues before starting TRT. While TRT can dramatically improve symptoms and quality of life, it's crucial to manage expectations; it aims for symptom relief and physiological restoration, not necessarily a return to youthful vigor or supra-physiological levels. He strongly advises against self-medication or relying on clinics that offer haphazard protocols, advocating for informed decision-making with a knowledgeable medical professional.

Mechanism

Exogenous testosterone replaces the body's natural production, directly binding to androgen receptors to exert its effects. This bypasses issues of testicular production or pituitary signaling. However, it also suppresses the body's natural hypothalamic-pituitary-gonadal (HPG) axis, leading to a cessation of natural testosterone production and testicular atrophy.

if you've done all the stuff that we kind of like talked about and you've ruled out um pituitary adenoma, you've ruled out any sort of like I don't know like uh um structural defects and signaling is adequate or even supra physiologic and you're just not responding. Like at that point it's kind of like okay you're we could try hammering you with some hCG and see if we can stimulate a satisfactory response with like a manual like extra push at the light cell.

Also said
“if you're hypoganatal, you're going to be healthier replacing to physiologic than you would staying hypoganatal for sure. Like you are a thousand% in cardiotoxic, neurotoxic, uh, quality of life down the, you know, the toilet territory if you're like in hypoganatal levels almost certainly.”— Highlights the severe negative consequences of untreated hypogonadism.
“I wouldn't I wouldn't delay treatment if you're symptomatic and it's like hurting your quality of life, but I also would like do some due diligence to just like assess like what's happening.”— Balances the need for treatment with the importance of understanding the underlying cause.

TRT Administration Methods

WhatChoose a TRT delivery method that balances efficacy, adherence, and risk profile, with scrotal cream or frequent subcutaneous injections often being ideal for stable levels.
For whomMen considering or undergoing TRT.
WhyDifferent methods have varying pharmacokinetic profiles, affecting hormone stability, side effects, and convenience. Stable, physiological levels minimize risks.
CaveatsPellets and Androgel (for men) are generally not recommended. Injections, especially infrequent ones, can lead to supra-physiological peaks and increased risks. Creams have transference risks. Oral formulations are newer and expensive. Always prioritize stable, physiological dosing.

The speaker discusses various methods for administering TRT, emphasizing that the ideal choice balances stable hormone levels, patient adherence, and risk mitigation. He strongly advises against pellets and generally discourages Androgel for men due to its limited efficacy in achieving optimal levels. Scrotal cream is presented as a highly effective option, providing excellent absorption and a pharmacokinetic profile that closely mimics natural pulsatile secretion, while also facilitating local 5-alpha reduction. However, it requires daily application and carries a risk of transference. Injections are the most common method, but infrequent dosing (e.g., once a week) can lead to supra-physiological peaks and troughs, increasing side effects. More frequent subcutaneous micro-injections (e.g., every other day) are recommended for maintaining stable levels. Newer oral testosterone undeanoate formulations offer convenience but are expensive and still being evaluated. He warns against the common practice of infrequent, high-dose injections, which can lead to significant fluctuations and heightened risks, and stresses that adherence should not compromise safety.

Mechanism

Different delivery methods affect the absorption, metabolism, and half-life of testosterone. Scrotal creams allow for direct absorption and local conversion, mimicking natural production. Injections provide a bolus of testosterone, with the ester (e.g., cypionate, enanthate) determining its release rate. Frequent, smaller doses (e.g., daily or every other day subcutaneous injections) lead to more stable blood concentrations, reducing peaks and troughs. Oral formulations have historically been hepatotoxic, but newer lymphatic absorption methods bypass first-pass liver metabolism. Infrequent, high-dose injections can lead to transient supra-physiological levels, suppressing natural production and increasing side effects.

the cream scrotally is reliable good produces a very favorable outcome and a lot of guys will be quite happy with that method the other method that I would say is worth uh considering and like the typical one that most guys do is injection which it's a bit more predictable typically in terms of like what you're going to get out of it in terms of adher appearance.

Also said
“the closer something is to what would be equivalent to what you would naturally make should you have had should you have healthy functioning testes producing natural testosterone. that's going to be the one that has the least impact on all of the un like intentional consequences of like spikes in hormones.”— Highlights the principle of mimicking natural physiology for optimal outcomes.
“It's not physiologic to have your hormones transiently shoot to like I don't know 1,200 or 1500 total tea with a disproportionately high free testosterone from administering once or twice a week twice a week is a bit quite a bit better but once a week for example and then it crashing back down before you shoot again like that's not physiologic really at all.”— Explains the non-physiological nature and risks of infrequent, high-dose injections.

TRT and Fertility Preservation

WhatMen on TRT who wish to preserve fertility must use adjunct therapies like hCG and recombinant FSH to maintain testicular function and spermatogenesis.
For whomMen on TRT who desire to maintain or restore fertility.
WhyExogenous testosterone suppresses the body's natural signaling to the testes, leading to atrophy and infertility. Adjunct therapies mimic these natural signals.
CaveatsAdjunct therapies are expensive (especially recombinant FSH) and require careful management. hCG is not bioidentical LH. Fertility restoration after prolonged atrophy can be more challenging.

The speaker explains that exogenous testosterone, even at replacement doses, will significantly suppress a man's natural fertility, often leading to testicular atrophy and azoospermia (absence of sperm). This occurs because the brain perceives sufficient testosterone and estrogen, shutting down the hypothalamic-pituitary-gonadal (HPG) axis, which normally signals the testes to produce testosterone and sperm. To preserve fertility while on TRT, men must use adjunct therapies like Human Chorionic Gonadotropin (hCG) and recombinant Follicle-Stimulating Hormone (FSH). hCG mimics LH, stimulating the Leydig cells to produce intratesticular testosterone, which is crucial for spermatogenesis. Recombinant FSH directly supports Sertoli cells, also vital for sperm production. This approach allows for the maintenance of testicular size, function, and sperm production, but it is costly and requires careful monitoring, as it adds to the overall hormone load and can influence estrogen levels. He warns against relying on the misconception that high exogenous testosterone alone can maintain fertility, citing anecdotal cases in bodybuilding where accidental pregnancies occur despite suppression, but emphasizing that this is not a reliable method of contraception or fertility preservation.

Mechanism

Exogenous testosterone provides negative feedback to the hypothalamus and pituitary, suppressing the release of GnRH, LH, and FSH. LH normally stimulates Leydig cells to produce intratesticular testosterone, essential for spermatogenesis. FSH supports Sertoli cells, also critical for sperm production. hCG mimics LH, stimulating Leydig cells. Recombinant FSH directly provides FSH. By providing these signals exogenously, testicular function and spermatogenesis can be maintained despite the suppression of the natural HPG axis.

you will absolutely crush your fertility pretty significantly if not entirely depending on some things. So intraicular testosterone is the significant mediator of spermatogenesis.

Also said
“you either replicate that natural signal or you sustain organ atrophy to the point of potentially some permanent likely deterioration, all but likely not inability to restore fertility.”— Highlights the two main paths for fertility on TRT and the potential for long-term impact.
“You can maintain everything while you're on testosterone via that manual signaling of hCG plus reccombinant FSH. That's like the combo that basically replicates what would otherwise be the LH and FSH from your pituitary to your testes.”— Identifies the specific adjunct therapies for fertility preservation.

Monitoring Biomarkers on TRT

WhatRegularly monitor a comprehensive panel of biomarkers including hematology, metabolic parameters, lipids, and hormone levels (total/free testosterone, estradiol, LH/FSH, SHBG).
For whomAnyone undergoing TRT.
WhyMonitoring ensures safety, optimizes treatment, and identifies potential side effects or underlying issues. A baseline is crucial for tracking changes.
CaveatsEnsure accurate assay methods (LCMS for total T/estradiol, equilibrium dialysis/ultrafiltration for free T). Be aware of how different TRT protocols (e.g., infrequent injections) can skew results. Do not rely on creatinine for kidney function if muscular or taking creatine.

The speaker stresses the critical importance of comprehensive biomarker monitoring for anyone on Testosterone Replacement Therapy (TRT). He outlines a broad panel of tests, starting with hematology (red blood cell count, hematocrit, hemoglobin) to watch for polycythemia. Metabolic parameters like fasting insulin and HbA1c are important to track overall metabolic health and insulin sensitivity, which can improve with TRT. A lipid panel, especially HDL, should be monitored as testosterone can suppress it. Hormone levels are paramount: total and free testosterone, estradiol (with sensitive assays like LCMS), LH and FSH (which should be suppressed on TRT), and SHBG (which will be suppressed by exogenous androgens). He also recommends advanced kidney function markers like cystatin C or SDMA/ADMA, as creatinine can be misleading in muscular individuals. A baseline assessment before starting TRT is non-negotiable, as it provides a reference point to evaluate the impact of therapy and identify any issues. He also mentions monitoring clotting risk factors and LP(a), noting that androgens can suppress LP(a), potentially masking a genetic predisposition.

Mechanism

Testosterone influences erythropoiesis (red blood cell production), lipid metabolism (e.g., HDL suppression), and insulin sensitivity. Exogenous testosterone provides negative feedback to the pituitary, suppressing LH and FSH. It also suppresses SHBG, increasing free androgenic signaling. Monitoring these biomarkers allows for early detection of adverse effects (e.g., polycythemia, dyslipidemia) and ensures the therapy is achieving desired physiological effects without undue risk. Accurate assay methods are crucial for precise measurement of hormone levels, especially at lower concentrations or for free hormones.

I think uh um hematology you know this kind of like covers the basics of you know red blood cell count hematocrit hemoglobin etc. um metabolic parameters. Um like there there's a lot of stuff you want to incrementally assess like how well it's working too like how much more metabolically like fit are you becoming in your blood work and insulin sensitive and whatnot because these are metrics of progress you can use to actually determine how well this is going for you.

Also said
“The gold standard for total testosterone is liquid chromatography with tandem mass spectrometry. If you use an equilibrium, if you use a uh immunoassay test, which is like the cheaper version, often it will be relatively inaccurate.”— Specifies the gold standard for accurate testosterone measurement.
“For free testosterone, you don't want to be using a calculation. Ideally, you would want to be measuring through equilibrium ultrailtration or equilibrium dialysis, which are like actual measurements, not estimates based on calculations.”— Specifies the gold standard for accurate free testosterone measurement.
“It would be odd if you were on testosterone replacement and your LHF weren't like at the bottom of the barrel. It would almost be questioning at that point like am I having something inhibit the androgens from working or the estrogen because it's like you could theoretically blunt estrogen mediated feedback by using you know an aromatase inhibitor or a serum or something and like blunt that response and you would see in your blood work it'd be like your body still thinks it needs to make more natural testosterone and you know it's kicking up the ginadotropen.”— Explains what LH/FSH levels should indicate on effective TRT.

Hair Loss Prevention (DHT Inhibition)

WhatTo prevent androgenic alopecia, inhibit DHT through pharmaceutical means like finasteride or dutasteride, or topical anti-androgens.
For whomIndividuals genetically prone to male pattern baldness who wish to prevent hair loss.
WhyDHT is the primary driver of hair follicle miniaturization. Inhibiting its production or action is the only proven way to prevent progressive hair loss.
CaveatsThese drugs have potential side effects (e.g., sexual dysfunction, mood changes), though prevalence is often overblown. Requires careful consideration of individual risk-to-reward. Minoxidil is a growth stimulant, not a preventative.

The speaker asserts that the most effective strategy for preventing androgenic alopecia is to inhibit DHT, the primary androgen responsible for hair follicle miniaturization. He explains that the scalp's high concentration of 5-alpha reductase leads to significant local DHT conversion, which progressively weakens hair follicles. Pharmaceutical options like finasteride (inhibits two 5-alpha reductase isoenzymes) and dutasteride (inhibits all three, leading to near-complete systemic DHT suppression) are the most potent interventions. He acknowledges the controversial nature and potential side effects (e.g., sexual dysfunction, mood changes) associated with these drugs but argues that their prevalence is often exaggerated by media, while the benefits for preventing hair loss are substantial. He emphasizes that minoxidil, while effective for stimulating hair growth, does not address the underlying DHT-mediated miniaturization and thus cannot prevent progressive hair loss on its own. Early intervention is crucial, as prolonged hair loss can lead to irreversible fibrosis of the scalp.

Mechanism

Finasteride and dutasteride are 5-alpha reductase inhibitors, preventing the conversion of testosterone to DHT. By reducing DHT levels in the scalp, they attenuate the miniaturization process of hair follicles. This allows hair follicles to maintain their anagen (growth) phase for longer, preventing them from shrinking and eventually dying. Topical anti-androgens directly block DHT from binding to androgen receptors in the scalp.

the most impactful therapy for sure intervention wise is going to be inhibiting DHT. The degree to which you inhibit it will be dictated on how susceptible you are. But if you nuke DHC into nothingness via highdosese dutasteride, it's pretty difficult, if not near impossible, to lose hair as a male.

Also said
“you have to weigh the risk-to-reward on inhibiting DHT.”— Highlights the personal decision-making involved due to potential side effects.
“It's not to say it's not real. There's definitely side effects from these drugs, but like there's a huge nibo effect that comes with these drugs where, you know, I have friends who get on it and they're like, "Dude, I swear like you know, my penis is not working like I used to."”— Acknowledges real side effects but also the significant nocebo effect.

What's new

Personal practice updates, fresh positions, predictions

4 items

Testosterone Decline Trend

0:30:00

There is a downward trend in male testosterone levels, primarily driven by lifestyle factors rather than solely environmental toxins.

Why this matters: Challenges the common narrative that endocrine-disrupting chemicals are the primary cause, shifting focus to modifiable lifestyle factors.

Background

Many people express concern about lower testosterone levels in men today compared to the past, often attributing it to environmental factors.

The speaker acknowledges the widespread concern about declining male testosterone levels. While environmental factors like pollution and endocrine-disrupting chemicals are present and can have an effect, he emphasizes that their impact is often exaggerated compared to fundamental lifestyle choices. He suggests that the most significant contributors to this decline are obesity, poor diet, lack of exercise, and inadequate sleep. He also notes that comparing historical testosterone levels is complicated by differences in testing methodologies, making direct comparisons difficult. However, he firmly believes a downward trend exists, and addressing core lifestyle issues is paramount before focusing on more minute environmental concerns.

Is there a trend downwards? I would say yes. And I think it is mostly dictated by the obesity, the diet, the lifestyle stuff.

Also said
“Pollution, I think, is a big factor to be chronically dealing with a toxic environment will inhibit broad systems.”— Acknowledges environmental factors but positions them as secondary to lifestyle.
“One thing that I think is notable is the actual detection sensitivity of testing is absolutely much different now than it was you know 60 years ago. So to contrast like oh the total test of some guy 60 years ago verse now is equivalent even on like a testing methodology basis is like flawed to begin with because it's probably not an accurate comparison.”— Highlights a methodological challenge in historical comparisons of testosterone levels.

Ketogenic Diet and Free Testosterone

0:24:40

Ketogenic diets can significantly lower free testosterone levels by increasing Sex Hormone Binding Globulin (SHBG) due to a lack of insulin signaling.

Why this matters: Provides a specific, less commonly discussed mechanism by which a popular diet can negatively impact hormone availability, even if total testosterone remains high.

The speaker explains that while total testosterone might appear normal or even high on a ketogenic diet, the lack of insulin signaling inherent in such a diet can lead to a substantial increase in Sex Hormone Binding Globulin (SHBG). SHBG binds to testosterone, making it biologically inactive. Therefore, even with adequate total testosterone production, the amount of 'free' or usable testosterone can be significantly reduced, potentially leading to symptoms of low testosterone. He notes that this is why some individuals on carnivore diets, for example, have started incorporating fruit, to reintroduce some insulinogenic signaling and help manage SHBG levels. This mechanism is also relevant for women, as they have lower baseline androgen levels, making them more susceptible to the effects of elevated SHBG.

If you're on a ketogenic diet, you can absolutely expect your SHBG levels to be through the roof and your free test to be much lower. So carnivore diet guys, there's a reason they eat fruit now. It's because their free test levels are all [ __ ] and their total test levels were high and they thought it was fine.

Also said
“You will have less capacity to suppress the binding proteins.”— Directly links insulin signaling to SHBG suppression.
“Not only is your free test potentially inadequate despite adequate testosterone production, proportionally your free DHT, which is like the main androgenic hormone is like way more gobbed up.”— Explains the disproportionate impact on DHT due to its higher binding affinity for SHBG.

Dutasteride and Longevity Speculation

1:09:00

The speaker speculates that dutasteride, by significantly reducing DHT, might indirectly increase longevity by decreasing overall androgenic stimulation and potentially mitigating cardiotoxicity or excitotoxicity, especially for those on TRT.

Why this matters: Presents a controversial, speculative, and non-mainstream hypothesis about a drug's potential longevity benefits, contrasting with its primary use for hair loss and prostate issues.

The speaker offers a speculative take on dutasteride's potential longevity benefits, suggesting that by profoundly inhibiting DHT, the most androgenic hormone, it could reduce overall androgenic stimulation. He posits that this reduction might mitigate potential negative effects associated with higher androgen levels, such as cardiotoxicity or excitotoxicity, particularly for individuals on Testosterone Replacement Therapy (TRT) who aim for high-normal testosterone levels. He notes that dutasteride has no impact on muscle growth, as DHT is not anabolic in adult muscle tissue. Furthermore, he highlights that dutasteride leads to a proportional increase in intra-tissue estrogen due to the inhibition of the 5-alpha reductase enzyme, which he believes could offer pro-longevity benefits like vasodilation and antioxidant effects. He acknowledges this is speculative and not scientifically proven but finds the idea intriguing for future research.

Personal experience

The speaker states he has been on dutasteride for years and has experienced no perceivable detriment to his cognitive state or sexual function. He also notes that many respected individuals in the anti-aging and longevity community use it.

my speculation is that if anything, these would net increase your longevity because they're decreasing androgenic stimulation significantly because DHT is literally the most androgenic hormone in your body.

Also said
“Even at supra dosages, the dutasteride getting wiped out had no impact whatsoever on strength and muscular uh hypertrophy. So like there's no benefit muscularly to DHT in any capacity as an adult, which is notable because a lot of people think their physique is going to deteriorate if they use one of these drugs.”— Addresses a common misconception about DHT's role in muscle growth and its interaction with dutasteride.
“I have a net increase in intraissue aromatization from the inhibition of the 5 AR enzyme. So like in you know all the tissues that would otherwise be like prolongevity from estrogen locally you're getting a benefit you're getting the proportional increase of 15 to 20% of intrissue estradile and if you don't have any side effects from that if anything you would think okay well it's probably uh vaso vasoddilative it's probably like more pro um antioxidant it's probably less exyitotoxin sick.”— Explains the potential benefits of increased local estrogen due to 5-alpha reductase inhibition.

Hair Loss and DHT Inhibition

1:00:00

Androgenic alopecia (pattern hair loss) is primarily caused by DHT-mediated miniaturization of hair follicles, and effective prevention requires inhibiting DHT, as growth stimulants like minoxidil do not address the root cause.

Why this matters: Clarifies the fundamental mechanism of male pattern baldness and distinguishes between treatments that stimulate growth versus those that prevent the underlying cause.

The speaker explains that male pattern hair loss, or androgenic alopecia, is fundamentally caused by the miniaturization of hair follicles due to androgens, primarily dihydrotestosterone (DHT). The scalp has a high density of 5-alpha reductase, the enzyme that converts testosterone to DHT, leading to a disproportionately high local concentration of DHT. This DHT activity shortens the hair's growth phase, causing follicles to produce progressively thinner and weaker hairs until they eventually cease production and the area undergoes fibrosis, making regrowth impossible. He stresses that treatments like minoxidil, while effective growth stimulants, do not prevent this miniaturization process. Therefore, to truly prevent hair loss, one must inhibit DHT, typically through pharmaceutical means like finasteride or dutasteride. He cautions against relying on anecdotal remedies or unproven methods, as delaying effective treatment can lead to irreversible damage.

at the end of the day, nothing seems to be potent enough to attenuate whatever is happening downstream. So like the net result is the follicle literally like starves itself and miniaturizes like the follicle becomes weaker, thinner and over time the antigen phase which is like the growth phase of the hair follicle shortens shortens shortens and over time you're just like shedding weaker and weaker hair and it's growing back thinner and thinner and eventually it's so thin, sparse and insignificant cosmetically that you can't even see it.

Also said
“You could take minoxidol all day. You could take all the pumpkin seed oil, sa pelmet meadow, dump sulfur on your head, do whatever you want. Like it's not going to move the needle for inhibiting miniaturization mediated through androgens, which is ultimately what it is.”— Emphasizes the ineffectiveness of non-DHT inhibiting treatments for preventing miniaturization.
“minoxil is the thing you use to regrow hair it's not the thing that prevents loss you can cosmetically offset the visual perception of loss via the growing of hair, but it does absolutely nothing to prevent the further miniaturization.”— Clearly differentiates the action of minoxidil from DHT inhibitors.

Recommendations

Products, supplements, and tools mentioned in the episode

10 items

Zinc

Supplement

One of the top three most reliable supplements for testosterone, especially if deficient.

Zinc is identified as one of the 'low-hanging fruit' micronutrients that can significantly impact testosterone levels. While often included in multivitamins, ensuring adequate intake is crucial, especially if a deficiency is present. The speaker notes that addressing a zinc deficiency, along with magnesium and vitamin D, can lead to a meaningful increase in total testosterone, potentially by 100-150 ng/dL. It affects the body's capacity to produce testosterone and its response at the androgen receptor level.

things like zinc, magnesium, vitamin D, like these all have a marked impact on your testosterone either response to it or capacity to produce it or even like like you mentioned in our podcast, a conversion of vitamin D into active vitamin D.

Find Zinc

Magnesium

Supplement

One of the top three most reliable supplements for testosterone, especially if deficient.

Magnesium is highlighted as a crucial micronutrient for testosterone optimization, with many people unknowingly deficient. The speaker points out that while multivitamins may contain some magnesium, the elemental weight required for adequate dosing often makes it impractical to get enough from a single multivitamin capsule. He suggests that addressing a magnesium deficiency, alongside zinc and vitamin D, can lead to a meaningful increase in total testosterone, potentially by 100-150 ng/dL. Rhonda Patrick's articles are referenced for guidance on bioavailable magnesium formats.

Magnesium in particular almost never is because of the weight of it. You would be having to take a multivitamin that's like eight to 10 capsules otherwise, which just nobody does.

Also said
“Rhonda has great articles on magnesium formats that are bioavailable and yield more than enough magnesium.”— References an expert for further information on magnesium forms.
Find Magnesium

Vitamin D

Supplement

One of the top three most reliable supplements for testosterone, especially if deficient.

Vitamin D is emphasized as a critical supplement for testosterone, acting as a hormone itself and influencing androgen receptor activity. The speaker notes that even if someone takes a high dose, they might not be adequately converting or utilizing it, which can impact testosterone production and response. Addressing a deficiency in vitamin D, along with zinc and magnesium, is considered a 'low-hanging fruit' that can lead to a significant increase in total testosterone, potentially 100-150 ng/dL. He also points out that due to its fat-soluble nature, it's often not adequately dosed in typical multivitamins.

the vitamin D having an adequate amount, making sure you're converting it and actually getting the activity from it. um mechanistically there is some level of um like gene transcription capacity facilitated through these like like vitamin D is a hormone for example and it does also affect androgen receptor activity and some like the capacity for androgens to do what they do not just like the production of the amount of them.

Find Vitamin

Ashwagandha (Standardized Extract)

Supplement

A supplement that can indirectly boost testosterone by suppressing cortisol and managing stress.

Ashwagandha, specifically standardized extracts like Sensoril or KSM-66, is recommended for its indirect testosterone-boosting effects. The primary mechanism is its ability to suppress cortisol and modulate the stress response. For individuals experiencing high stress, anxiety, or poor sleep, reducing cortisol can create a more favorable hormonal environment for testosterone production. The speaker notes that this can lead to a 'triple-digit' increase in testosterone for responders. However, he strongly cautions about the potential for 'anhidonia' or emotional numbing if the dose is too high or if the individual is already prone to emotional blunting. He advises starting with clinically supported doses and being highly aware of mood changes. He also mentions that while some studies are company-funded, anecdotal blood work supports its efficacy.

Personal experience

The speaker mentions his personal interest in trying ashwagandha for stress management and potential testosterone benefits, and that he will check his blood work before and after.

ashwagandha specifically uh extract that is standardized to a sufficient quantity of wthanol and not just your standard run-of-the-mill generic ashwagandha. You want to look for ideally a patented, you know, uh sensoril or a KSM66.

Also said
“it is not a catch-all supplement that will benefit everyone and some people it will push them into anhidonia territory which is like a numbing of emotion.”— Highlights a significant potential side effect.
“I think it's triple digits pretty reliably for those who can benefit from it.”— Quantifies the potential testosterone increase.
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Tongkat Ali (Eurycomanone-standardized)

Supplement

A more 'exotic' supplement that can boost testosterone, particularly by suppressing SHBG and upregulating steroidogenesis.

Tongkat Ali is presented as a potent, though more 'exotic,' supplement for boosting testosterone, particularly for men with high SHBG or those needing a significant boost after optimizing lifestyle and basic micronutrients. Its primary mechanisms involve suppressing SHBG, which frees up more biologically active testosterone and DHT, and upregulating steroidogenesis within the testes. The speaker explains that it specifically helps incorporate cholesterol into the mitochondria for enzymatic conversion into testosterone. He emphasizes the critical importance of sourcing a Tongkat Ali product standardized for Eurycomanone, its active ingredient, as generic extracts may be ineffective. He suggests it can increase testosterone by 100-200 ng/dL and is effective even in young, healthy men, not just those with age-related decline. While potentially beneficial for women by reducing SHBG, specific studies are lacking.

the main mechanism that people seem to agree on that it does do suppression of SHBG to some extent as well as the uh upregulation of steroidenesis um intraesticularly so like locally upregulating I believe it's steroidogenic acute regulatory protein that basically incorporates um cholesterol into the mitochondria to actually undergo these enzyatic cleaving uh sequences that result in the production of testosterone locally

Also said
“You want to look for one that is HLC tested for uricomone. That's the active ingredient in tonad ali that actually has the bioactive effect that you're looking for.”— Specifies the crucial quality control for Tongkat Ali supplements.
“it seems to work to the tune of 100 to 200 nanograms per deciliter for some people”— Quantifies the potential testosterone increase.
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Boron

Supplement

A mineral that may have a suppressive effect on SHBG levels, potentially liberating free testosterone.

Boron is mentioned as a supplement that may help liberate free testosterone by potentially suppressing Sex Hormone Binding Globulin (SHBG). The speaker notes that while the literature isn't 'super robust,' some studies show promise, particularly with doses of 6-12 mg. He considers it a 'lower-hanging fruit' because it's often part of multivitamins but may not be dosed high enough to impact SHBG. It's seen as a supporting adjunct that could incrementally improve free testosterone levels without necessarily increasing total testosterone production. He also briefly mentions its potential as a longevity molecule, though this is not elaborated upon.

I think one that I would would be worth mentioning al but the literature isn't super robust it is boron so that potentially has a suppressive effect on SHBG levels

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DHEA (for women)

Supplement

A supplement for women with low DHEA to support testosterone conversion, especially if on oral contraceptives.

The speaker highlights DHEA as a potentially beneficial supplement specifically for women, contrasting its limited impact on men's testosterone. For women, a significant portion of testosterone can be derived from DHEA conversion, especially from adrenal synthesis. If a woman has low DHEA (identifiable by low DHEAS levels), supplementation can effectively restore testosterone levels. This is particularly relevant for women using combined oral contraceptives, which can drastically suppress natural testosterone production. He cites examples where DHEA supplementation helped women on oral contraceptives regain their baseline testosterone levels. He advises starting with a low dose (e.g., 25-50 mg) and monitoring for androgenic side effects like acne, as DHEA is an androgen and should be treated with caution.

for women because you only have such a amount it's like you know 15 to 70 total a significant chunk of that could be driven through DHEA mediated conversion. And if that is the case and you're low DHEA via an assessment of the biioarker DHEAS typically as a proxy sulfated DHEA, you may highly benefit from like a basic DHEA oral supplement

Also said
“I've seen pretty dramatic changes to the degree of women on combined or old contraceptives attenuating entirely the loss in testosterone production via the progesterine and estrogen induced suppression through the DHEA.”— Provides a specific example of DHEA's efficacy in women on oral contraceptives.
“25 to 50 would be like what you see in the studies, but I would start lower for sure just to see how you respond because it is again an androgen and women some of them respond pretty aggressively with acne flare-ups and androgenic side effects”— Suggests a starting dose and warns about potential side effects.
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Dutch Test for Cortisol

Practice

Recommended for assessing cortisol and stress response more accurately than blood tests.

If you do assess your cortisol stress response, I would highly recommend a Dutch test over a blood test. Why is that? Salivary cortisol levels uh are far more indicative of what's happening from a stress response standpoint than your like transient serum cortisol levels will be.

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Voice Tone Monitoring App (for women on TRT)

Tool

A tool for women on testosterone therapy to monitor for irreversible voice deepening.

I would recommend downloading uh like a really vetted and highly reviewed app that monitors your actual like tone of your voice to assess any sort of change in inflection, tonality, deepness, cuz that's the only thing that will assess in real time that change without just some subjective assessment from your like significant other or something.

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Micro-needling (for hair loss)

Tool

Used to enhance the efficacy of topical minoxidil and potentially upregulate sulfotransferase enzyme activity.

Micro-needling is recommended as an adjunct therapy for hair loss, primarily to enhance the effectiveness of topical minoxidil. The speaker explains that it likely works by improving the absorption of the topical drug into the scalp and potentially by upregulating the sulfotransferase enzyme, which is necessary to convert minoxidil into its active form, minoxidil sulfate. This can turn non-responders into significant responders or dramatically boost results for those already responding. He notes that recent literature suggests a shallower depth of 0.6mm may be as efficacious as the previously recommended 1.5mm, with fewer cosmetic issues and quicker recovery. He views it as a 'manual micro-damage' that recruits growth factors without adding more drugs.

And then there's micro needling which also seems to be pretty dramatic turning some non-responders into like significant responders or magnifying the results like multiple fold for people who were responding just not as well as they could be either driven through lack of adequate absorption and or lack of adequate sulfot transferase enzyme activity.

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Notable quotes

Lines worth pulling out — contrarian, specific, or perfectly phrased

6 items
Just because you have less testosterone than the next guy, it doesn't necessarily even mean that you have less muscle growth potential or less, you know, you know, bone support capacity or less uh neurological support. Like it's not guaranteed any of these things based on absolute values. It should be a combination of symptoms as well as uh blood values.
Challenges the common assumption that absolute testosterone numbers are the sole determinant of physiological function, emphasizing individual receptor sensitivity and symptoms.
Often times it's a reflection of some sort of problem like they need to produce more to reach adequate activity. So like sometimes the body is screaming at the testes because it's not getting adequate production to do what it needs to do and it's resulting in you shooting out more gonadotropins to make more testosterone.
Offers a contrarian view on very high natural testosterone levels, suggesting they might indicate an underlying issue of androgen insensitivity rather than superior physiology.
men who are dieting for bodybuilding shows naturally, it is not uncommon to see the end result of a hormone profile on like the last week them to look more female on paper than like their girlfriend. Like that's how low their testosterone levels are.
Illustrates the extreme hormonal suppression that can occur with severe caloric restriction and overtraining, using a vivid and memorable comparison.
It's kind of a crazy thing how in this day and age we have like advanced AI stuff we have like all these like cutting edge treatments for you can like literally completely get rid of the likelihood of ASVD for crushing APOB and like different things of this nature but like hair loss No one has a [ __ ] clue what happens or how to prevent it without just crushing your DHT levels essentially, which is wild that that's still a thing.
Highlights the surprising lack of advanced solutions for hair loss despite scientific progress in other complex areas, underscoring the unique challenge of DHT's role.
You'll never hear about postdutastasteride syndrome though even though it's a way more potent drug because it's largely a mediadriven construction.
Suggests that the 'post-finasteride syndrome' narrative is heavily influenced by media and nocebo effect, rather than being solely a direct pharmacological outcome, given the lack of a similar 'post-dutasteride syndrome' despite dutasteride's greater potency.
You have to like find the doctor who like you know is responsible which is crazy but like yeah you got to do your due diligence. You got to educate yourself. No, I mean that's what podcasts like this are for as well.
Emphasizes the critical need for patients, especially women, to be highly educated about hormone therapy to navigate the landscape of varying medical opinions and ensure responsible treatment.

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Topics covered

testosterone role in mentestosterone role in womentestosterone tradeoffs longevitytestosterone measurementtotal testosteronefree testosteroneshbgsex hormone binding globulindhtdihydrotestosteroneoral contraceptiveslow testosterone symptomsage related declinelifestyle factorsalcoholsmokingdietary fatcarbohydratesproteinmicronutrient deficiencies
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Educational summary of the cited expert source — not medical advice. Open the source recording linked above and consult a qualified physician before acting on any protocol.