Is HRT / TRT better and safer than natural testosterone supplements? Here is what science says

We investigate the risks and uncertainties of using TRT vs natural testosterone supplements in our latest evidence-based research

With rising concerns on cardiovascular, fertility, hormonal and psychological health, is TRT the safer option compared to natural testosterone supplements? 

This article goes in deep into investigating the use and safety of HRT, its side effects and whether natural testosterone supplements such as Tongkat Ali are safe and effective alternatives to HRT / TRT.

Overview

The use of Testosterone Replacement Therapy (TRT), or known as HRT vs natural testosterone supplements sparks debates amongst healthcare professionals and users. Some Reddit users claimed that natural supplements such as Tongkat Ali perform better as a testosterone and libido booster without permanent side effects.

Doctors in testosterone clinics are now advertising TRT to healthy adults and the rise of Over-The-Counter (OTC) HRT gels, patches and TRT injections without explaining the long-term risks to consumers.

Marketed as an anti-aging remedy, testosterone men clinics such as Biostation in the US are offering men the chance to regain that virility. But in reality, whether you are using TRT as a sports performance booster, some men ended with infertility and other health risks as reported by WSJ’s Rofle Winkler in a recent podcast.

As the cost of TRT is covered by insurance coverage in the US, many opt for a quick-fix solution to boost T-levels without considering its implications. Of course, you may think why not – even if you don’t need it.

On the first treatment, patients reported that TRT works miraculously well to restore energy, bringing back the natural youth and some reported a strong boost of libido. Well, at least for the next 72 hours. The effect will eventually wear off or it may last you for a week or so if you are lucky.

The worst part, as the testosterone feel-good effect fades away, you may be hooked for another round of TRT injection that will burn your wallet. And when your body is reliant on synthetic TRT drugs to produce testosterone or keep your mood or energy up, that is when you have to start to worry.

TRT vs Natural Testosterone Supplements: Risks & Uncertainties

For first-time TRT users and general consumers who are keen to compare between these two remedies to boost your testosterone, here is a quick overview of the risks that you need to know.

TRT vs natural testosterone supplements — risks & uncertainties

Evidence-based comparative analysis across cardiovascular, hormonal, psychological, regulatory, and long-term domains. Use the tabs to explore each risk category in depth.

TRT composite risk72%
Natural supp. risk34%
Shared risk domains6Overlapping concerns
Long-term certaintyLowBoth categories
Risk severity radar — 7 domains (score 0–10)
TRT (testosterone replacement therapy) Natural supplements
Scores are composite estimates drawn from published RCTs, meta-analyses, pharmacology literature, and established clinical guidelines. Higher score = greater documented or hypothesised risk. Natural supplement risks reflect ingredient-level evidence where whole-product trial data is limited.
Side-by-side domain bar comparison
TRT Natural supplements
Comprehensive risk comparison table
Risk domain TRT level Natural supp. Evidence Notes
ErythrocytosisHighVery lowStrong RCT3–18% on TRT
HDL suppressionHighVery lowStrong RCT5–20% reduction
MI / cardiac eventsModerateLowDebatedTRAVERSE 2023
HPG suppressionSevereMinimalStrong RCTNear-universal on TRT
Infertility riskVery highVery lowStrongAzoospermia in months
Aromatisation (E2↑)HighLowStrongGynaecomastia risk
Testicular atrophyVery highNoneStrongPredictable with TRT
Mood / aggressionModerateLowModerateDose-dependent
Dependency / withdrawalHighLowClinical evidenceLifelong commitment
Sleep apnoeaModerateLowModerateAshwagandha may help
Acne & hair lossHighVery lowStrongDHT-mediated
Prostate cancerUncertainVery lowWeak long-termSaturation model debated
Contaminants / purityLow–modHighTesting dataNo pre-market regulation
Drug interactionsModerateUncertainWeak human dataCYP450 pathways
Zinc / copper imbalanceNoneModerateMechanisticHigh-dose zinc only
Long-term unknownsHighHighVery weakBoth lack >10-yr data
Evidence quality reflects the best available data as of mid-2025. Long-term (>10 year) RCT data is absent for both categories across most domains. Natural supplement risks vary substantially by product, formulation, and dose.
Overall risk distribution — stacked breakdown
Established high risk Moderate / contested Speculative / low
Cardiovascular risk scores by marker
TRT Natural supplements
TRT — established riskErythrocytosis (elevated haematocrit)TRT stimulates erythropoiesis via EPO pathway upregulation. Haematocrit exceeding 54% significantly raises blood viscosity, increasing risk of thromboembolism, DVT, and ischaemic stroke. Incidence ranges from 3–18% depending on formulation and dose. (Pastuszak et al., 2013; Bhasin et al., 2018)
TRT — actively debatedMyocardial infarction & MACE riskHighly contested. Observational studies (Finkle 2014) found ~2× MI risk in the first 90 days. The TRAVERSE RCT (2023) found non-inferiority for major adverse cardiac events in hypogonadal men with pre-existing cardiovascular risk. Population selection appears critical; risk may be elevated in older men with high baseline CVD burden.
TRT — establishedHDL cholesterol suppressionExogenous testosterone — particularly injectable and oral forms — consistently reduces HDL cholesterol by 5–20% across trials. This is dose-dependent and worsens with injectable esters. Long-term atherogenic consequences are not fully quantified. (Elashoff et al., 2006)
Natural — limited evidenceAshwagandha & blood pressure effectsSome RCTs show modest cortisol reduction and minor blood pressure modulation with ashwagandha (KSM-66 extract). No significant cardiovascular harm found at standard doses. However, long-term cardiovascular safety data in high-risk populations is entirely absent. The compound also inhibits CYP3A4 — interactions with antihypertensives are plausible but uncharacterised.
Hypothesis — naturalGinseng & platelet aggregationGinsenosides may modulate platelet aggregation and coagulation pathways. At high doses this could theoretically increase bleeding risk or interact with anticoagulants. Evidence in humans at supplement doses is mechanistic only; no clinical cardiovascular harm has been robustly demonstrated.
Hormonal axis disruption — risk scores
TRT Natural supplements
TRT — established, severeHPG axis suppression & infertilityExogenous testosterone reliably suppresses LH and FSH via negative feedback on the hypothalamic-pituitary-gonadal axis. This results in testicular atrophy and azoospermia in most users within weeks to months. Recovery post-TRT can take 6–24+ months and is not guaranteed, particularly after long-term use. (Nieschlag & Behre, 2012)
TRT — establishedAromatisation to oestradiolTestosterone undergoes aromatisation to oestradiol via aromatase. Elevated E2 levels can cause gynaecomastia, water retention, mood dysregulation, and sexual dysfunction. This risk is higher with supraphysiological dosing and in men with higher baseline adiposity. Often "managed" with aromatase inhibitors — which themselves suppress bone density and cardiovascular health.
Natural — low to moderateFenugreek: 5-AR and aromatase modulationFenugreek contains furostanolic saponins that may weakly inhibit 5-alpha reductase and aromatase, hypothetically raising free testosterone. Clinical effect sizes in human trials are small (5–15% free T increase) and not consistently replicated. No HPG suppression has been documented.
HypothesisZinc mega-dosing & copper depletionMany "natural T-booster" products include zinc doses of 25–50 mg/day, far above the RDA. Chronic zinc intake above 40 mg/day can progressively deplete copper, leading to microcytic anaemia, neutropenia, and neurological deficits. The testosterone benefit of zinc is only clinically meaningful in zinc-deficient individuals.
Both — under-studiedSHBG dysregulationTRT lowers SHBG through androgen receptor-mediated pathways, disrupting the normal binding equilibrium for oestradiol and cortisol. Some natural supplements (boron, stinging nettle root) also claim to lower SHBG, but human evidence is weak. Long-term consequences of chronically suppressed SHBG are not well characterised in either category.
Psychological & behavioural risk scores
TRT Natural supplements
TRT — documentedMood instability & aggressionSupraphysiological testosterone levels are associated with increased irritability and impulsive aggression in some individuals. At physiological replacement doses in clinically hypogonadal men, mood often improves. The risk is highly dose-dependent and influenced by prior psychiatric history. (Pope et al., 2000)
TRT — documentedDependency & withdrawal syndromeLong-term TRT creates both physiological and psychological dependency. Cessation causes significant hypogonadal symptoms: profound fatigue, depression, anhedonia, low libido, and cognitive fog. These symptoms can persist for months during HPG axis recovery, making TRT a de facto lifelong commitment for most users.
Natural — speculativePlacebo effect & expectation biasClinical trials of natural testosterone supplements consistently show high placebo response rates for subjective outcomes (energy, libido, confidence). This creates a form of behavioural dependency without physiological basis and may delay appropriate medical evaluation of true hypogonadism.
Both — under-researchedSleep architecture disruptionTRT has been shown to worsen obstructive sleep apnoea (OSA), particularly in obese men, likely by increasing upper airway muscle bulk. Ashwagandha, conversely, shows some sleep quality improvement in RCTs. Long-term interaction data for either category in OSA populations remains sparse.
Hypothesis — naturalAdaptogen overuse & adrenal bluntingAdaptogens like ashwagandha modulate the HPA axis and reduce cortisol. Chronic use in already low-cortisol individuals could theoretically blunt adaptive stress responses. Long-term daily use beyond 12 weeks in vulnerable populations is not supported by safety data.
Evidence quality by domain (0 = anecdotal, 10 = multiple high-powered RCTs)
TRT Natural supplements
Natural — major gapNo pre-market approval requiredIn most jurisdictions (US, EU, Malaysia, Australia), natural testosterone supplements are classified as food supplements and do not require clinical efficacy or safety trials before sale. Third-party testing regularly reveals mislabelled ingredients, contamination with anabolic steroids, heavy metals, and microbial impurities. (Cohen PA et al., JAMA Internal Medicine 2020)
TRT — long-term unresolvedProstate cancer risk — the saturation debateThe "saturation model" (Morgentaler & Traish) argues TRT does not meaningfully increase prostate cancer risk beyond a low androgen saturation threshold (~8 nmol/L). However, no long-term RCT exceeding 10 years has fully resolved this. Current international guidelines contraindicate TRT in men with active or recent prostate cancer.
Both — emerging concernEndocrine-disrupting contaminantsNatural supplement products are frequently contaminated with undisclosed anabolic steroids (boldenone, nandrolone, methyltestosterone) in commercial testing. These contaminants can cause all the harms of AAS abuse without user awareness. Prescription TRT compounding pharmacies have separately faced contamination scandals.
TRT — establishedSkin & scalp — androgenic alopecia, acneExogenous testosterone raises DHT levels, accelerating androgenic alopecia in genetically susceptible men and causing acne via sebaceous gland stimulation. Topical TRT (gels, creams) also poses secondary exposure risks to partners and children via skin contact.
Natural — theoreticalHerb-drug interactionsAshwagandha inhibits CYP3A4 and CYP2D6. Tongkat ali may interact with CYP450 pathways. These interactions could theoretically alter blood levels of medications including statins, anticoagulants, antidepressants, and immunosuppressants. Human pharmacokinetic interaction data is almost entirely absent.
Medical disclaimer: This chart is for educational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before starting, stopping, or changing any hormone therapy or supplementation.

Experts Insights: Risks of TRT (HRT)

There are several risks associated with long-term and short-term use of TRT which are less discussed by patients, but often present significant health risks or complications to those who have underlying medical conditions – or even if you are a healthy.

According to Dr. Abraham Morgentaler from Harvard Medical School, testosterone therapy can be overprescribed and lead to cardiovascular issues in certain men.

“There are significant concerns about the long-term cardiovascular risks of testosterone injections, particularly in older men with heart disease.” Said Dr. Michael Lauer, a board-certified cardiologist, at the National Heart, Lung, and Blood Institute.

As more testosterone clinics in the US prescribing TRT injections to healthy men, this could bring further risks of side effects such as infertility as the body stops producing testosterone naturally once you stop taking testosterone injections.

Disrupting our natural hormonal balance that occurs in our endocrine system through synthetic TRT injections are far more worrying. Endocrinologist Dr. Shalender Bhasin from Brigham and Women’s Hospital in Boston warned users on the severe side effects of TRT.

“Testosterone therapy may have limited benefits for men without clear clinical signs of hypogonadism and can increase the risk of heart attack, stroke, and other conditions.” he said.

TRT Alternative: Natural Testosterone Supplement

Natural hormonal supplements such as Tongkat Ali and Ashwagandha are often seen as a long-term, sustainable and safe alternative to TRT or HRT, mainly due to the natural-plant-based diet that offers the same effects without the side effects – provided it is consumed within the recommended daily dosage.

Hailed for its wide range of hormonal-inducing benefits, Tongkat Ali works through a complex mechanism of actions that optimizes the endocrine system – mainly by stimulating FSH and LH through the pituitary glands to produce more testosterone.

In fact, natural TRT supplements are used by runners, sprinters and natural bodybuilders in actual competitions without issues of failing drug tests. 

Trusted natural testosterone supplements in the US & UK such as AKARALI are used widely by marathon runners, sprinters and bodybuilding, making it the most potent and safe supplement you could buy without doctor’s prescription.

Natural bodybuilders replacing TRT with natural supplements (eg: Tongkat Ali) reported similar energy boosts, improved libido and greater strength. When consumed at the appropriate dosage of 200mg to 600mg, it may increase testosterone production by up to 50%-120%. Combining natural supplements with multivitamins such as Vitamin C, zinc, magnesium Vitamin K, Vitamin D3 and Gingko may boost testosterone production by up to 580%. 

The effects of testosterone from natural herbs may not be surprising to many. In a research paper published a decade ago, South African medical bioscientist Ralf R. Henkel suggests that Tongkat Ali is a safe alternative to TRT, and its benefits extend beyond improved libido.

As this natural herb can be incorporated into any plant-based or keto-diet, this makes it popular amongst aging and healthy men, and used mainly for optimal energy boost, libido and overall hormonal balance.

Side Effects of TRT / HRT

Most common testosterone injections or TRT contains synthetic testosterone cypionate, testosterone enanthate, testosterone propionate, estosterone undecanoate, and methyltestosterone – which are well tolerated when administered if you have low androgen. 

However, studies showed increased harm from using HRT / TRT as your body stop producing testosterone naturally. Some of the common HRT / TRT side effects may include:

  • infertility 
  • low libido (if you are not taking it)
  • headaches
  • breast pain or tenderness
  • unexpected vaginal bleeding or spotting
  • feeling sick (nausea)
  • mood changes, including low mood or depression
  • leg cramps
  • mild rash or itching
  • diarrhoea
  • hair loss

Is TRT good for bodybuilding?

According to Reddit users, TRT offers many advantages if you are into weight lifting or weight training. But often bodybuilders are experiencing peak and valleys with TRT, whilst some expressed concerns of the low-T levels when pushing really hard at the gym.

Experienced powerlifters and bodybuilders often experience low testosterone (similar to endurance marathon runners) – most of it can be circumvented through TRT whilst some opt for a safer approach of taking natural supplements such as Tongkat Ali.

Natural bodybuilders on the other hand stick to natural supplements (Tongkat Ali in particular) for optimal muscle growth and strength as evidenced in various bodybuilding competitions around the world. For example, a Australian-based YNF bodybuilding is amongst the first event organizers that allow participants to use Tongkat Ali with positive feedback.

“TRT is synthetic hence most bodybuilders are switching to Tongkat Ali with zinc, magnesium, D3, B complex, creatine and protein powder to boost muscle growth and retain optimal metabolic health without risks of cardiovascular disease”, said Andric, Business Manager of YNF Ausralia.

Should I take BHRT supplements then?

Bioidentical natural hormone supplements are plant-based HRT which are administered to patients who prefer natural / organic remedy. Other natural supplement that works at par with HRT (but with gradual improvements) includes Tongkat Ali (Eurycoma Longifolia)

Bioidentical Hormone Replacement Therapy (BHRT) using natural supplements are most frequently used to ease symptoms of perimenopause and menopause for women, or to boost energy and libido for men – with gradual  improvements over a prolonged use.

BHRT or HRT / TRT natural supplements are getting more popular in the US rather than TRT injections or patches as consumers are increasingly aware of the infertility risks from long term use.

Tongkat Ali pure root extract and Ashwagandha may be classified as a natural form of BHRT that is safe, often taken daily with a monthly cycle and up to 15 years without side effects.

Pros & Cons: TRT vs Natural Supplements

Here is a summary of HRT (TRT) vs. Natural Supplements, outlining the pros and cons.

 

HRT / TRT

 

Natural Supplements

Type

Synthetic Testosterone

Plant-based natural testosterone

Price

Injectables

$288 -$1400 per month

 

Pills:

$130 – $240 per month

 

Capsules

$30-60 per month

Response Time

Fast

(24-72 hours)

Moderate – Fast

(24 hours – 96 hours)

Improvements

Noticeable

Noticeable

Risk of Cancer

Medium – High

Low

Risk of Infertility

Medium – High

Low

Risk of Cardiovascular Disease

Medium – High

Low

Libido Boost

High

Moderate – High

Testosterone Improvements

High

Moderate – High

Risk of Long Term Use

High

Low

Our Analysis

Natural supplements such as Tongkat Ali or Ashwagandha may be a safer option to increase your testosterone as it is seen as a natural way for your body to produce more testosterone compared to TRT injections (i.e derived from synthetic drugs). However, TRT may offer an immediate boost of energy and libido, although it may be a pricer option. This makes it more popular as the go-to solution for men with insurance coverage without knowing the long term cardiovascular and infertility risks.

For a man on the go, just drop into a random man’s clinic in Florida or New York, and off you go feeling manly, recharged, and super energized. On the other spectrum, Dr. Andrew Huberman is amongst the few Americans who felt strongly that natural supplementation is a better TRT alternative due to growing research studies.

Growing popularity supported by clinical studies showed that Tongkat Ali is amongst the best natural testosterone supplements for men as it helps to restore overall hormonal balance; notably increasing total and free testosterone, dopamine, reducing cortisol and regulating other key hormones.

For women above 40, Tongkat Ali supplement presents a promising alternative to HRT, when taken daily over a period of 24 to 52 weeks. Do you even need a TRT injection if you can source it naturally from plant-based herb such as Tongkat Ali?

A randomized clinical trial showed Tongkat Ali supplementation reduced hot flushes and improved hormone and lipid profiles in healthy peri-menopausal and menopausal women. The supplement enhanced hot flush symptoms in women by 65% after 12 weeks and by 73% after 24 weeks reducing menopausal symptoms in women.

Along with various research and clinical trials, Tongkat Ali is poised as one of the best alternative natural herbs to TRT. More so if you are seeking a gradual but sustainable solution to improve men’s health and fertility.

Is TRT / HRT Safe?

Hormone Replace Therapy (HRT) is relatively safe if you are taking the right type of HRT (eg: combined HRT, oestrogen-only HRT, testosterone gel, etc) and administered with the right dosage. However, Havard medical experts pointed out the long term risks associated with cardiovascular health, blood clotting and prostate cancer.

In reality, most of these severe side effects and health risks are visible few years down the road after TRT or HRT, and most men suffer with long-term downsides due to the inability of the body to produce testosterone naturally, posing further damage to the hormonal glands.

A study in 2002 by the Women’s Health Initiative found a link between HRT and an increased risk of blood clots, ovarian and breast cancer – which are largely ignored by men’s clinics, wellness centers and online TRT telemedics.

According to Professor Jane Green from the University of Oxford, the general consensus by medical professionals is that HRT should not be used to prevent long term disease, but used short-term to relieve menopausal symptoms (at least for women).

Meanwhile, many functional health coaches in the US and UK are not recommending HRT or TRT to their clients. UK functional health coach, AJ Brookes, who specializes in bloodwork analysis and bespoke health protocols reported that many of his clients were prescribed HRT hastily by doctors without knowing other underlying medical conditions.

Health coaches have had their fair share of close encounters with HRT patients. AJ Brookes added that he experienced many family friends and clients whose health has deteriorated due to HRT.

Amongst the largest concerns is doctors prescribing HRT to patients without knowing their health condition, or other underlying conditions that contribute to more health risks and damaging side effects. 

In other parts of the world such as in the US, there are unreported HRT patients struggling to live with long-term side effects of HRT such as unwanted weight gain, unexpected vaginal bleeding, erratic mood changes, depression, gradual hair loss and nausea.

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Does HRT cause cancer?

There are risks of breast and ovarian cancer by taking combined HRT based on several studies reported by scientists and research studies. In addition, HRT carries higher risks of cancer if you decide to take HRT long term, or regularly at high dosages:

Breast cancer: combined HRT increases the risk of breast cancer as reported by several studies. Prolonged use of HRT increases the risks of breast cancer. 

Ovarian cancer: combined HRT increases the risk of ovarian cancer in menopausal women. Prolonged use of HRT increases the risks of ovarian cancer. 

Those wanting to reduce cancer risks of HRT may opt for natural supplements, or natural endocrine supplements to restore overall hormonal balance.

Does natural supplement cause cancer?

Natural testosterone supplements may have lower health risks of cancer compared to TRT injections. Natural hormone supplements such as Tongkat Ali (Eurycoma Longifolia) contain anti-cancer properties against lung cancer, breast cancer, cervical cancer, colon and rectum cancers. 

Whilst various Tongkat Ali studies showed promising results, more research and clinical studies are required on herbs such as Ashwagandha, Panax Ginseng, Primrose Oil and others.

Can I take Tongkat Ali together with HRT or TRT ?

Yes, you may take Tongkat Ali in small doses of 100mg to 200mg three times a week if you are on HRT treatment, but it is not recommended unless it is absolutely necessary. You should not take Tongkat Ali after 24 or 72 hours of your first TRT to avoid any hormonal complications.

You may lower your Tongkat Ali dosage to 100mg-200mg daily 2 weeks after your TRT treatment, before increasing your dose if you are actively training in the gym or gearing up for sports competition.

Should you need to take Tongkat Ali during or after your TRT, please observe any adverse or acute side effects ranging from frequent headaches, nausea, vomiting or diarrhea. 

Related Article: Tongkat Ali Dosage Guide

Author

Naressa Khan contributes regularly on AKARALI. As a researcher and investigative journalist, Naressa is all about creating, deconstructing, and reassembling meaningful content through words and facts. With this approach always in mind, she eagerly explores the nuances in life via the aspects of lifestyle, culture, travel, health, and wellness in Malaysia .

Our articles are third party reviewed by our panel of experts and medical advisors to ensure the facts are accurate and credible. These are validated against multiple source references which include but not limited to research studies, peer-reviewed journals, pre-clinical studies, clinical tests and other credible publications.

Our panel of medical advisors and experts are highly experienced in their individual fields. However, they do not provide any medical advice or recommendations arising from content published in this article.

Disclaimer: 

The use of TRT, HRT or testosterone supplements should be consulted and administered by qualified medical professionals. The content published on this webpage is for educational purposes and should not be viewed, read, or seen as a prescription or constitute any form of medical advice. We recommend you consult your nearest GP or doctors before consuming Tongkat Ali or any products which contain Tongkat Ali. For further information, kindly refer to our Frequently Asked Questions (FAQ) for more information.

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