Supaveda · Ingredient Spotlight
Gokshura
Tribulus terrestris L. — Small Caltrops
Also known as: Gokhru · Trikanta · Svadukanṭaka · Paleru · Puncture Vine · Bai Ji Li
Gokshura (Tribulus terrestris) is one of Ayurveda's most precisely named herbs — go (cow) + kshura (hoof), describing the distinctive spiked fruit that punctures as it walks. For over five thousand years, this humble ground-creeping vine has been prescribed across India, China, and Ancient Greece for two of medicine's most universal concerns: urinary health and male reproductive vitality.
Found growing across the tropical and temperate regions of Europe, Asia, Africa, and Australia, T. terrestris has been documented simultaneously in Ayurveda (Gokshura), Traditional Chinese Medicine (Bai Ji Li), and Ancient Greek medicine (Dioscorides noted its diuretic properties). 1 It is classified in the Charaka Samhita under two important therapeutic groups: Mutravirechaniya (promoting urinary flow) and Vajikaran (aphrodisiac/virilising herbs) — a dual classification that maps almost exactly to the two areas of its strongest modern evidence. 2
🔬 A Note on the Testosterone Evidence — Reading it Honestly
Gokshura is widely marketed as a testosterone booster, but the human evidence is more nuanced than marketing often suggests. Animal studies consistently show testosterone increases; human evidence is mixed. The most recent (2025) systematic review found clinical evidence specifically for erectile dysfunction improvement and testosterone elevation in hypogonadal men. A 2023 Andrologia meta-analysis found significant sperm improvements but non-significant testosterone/LH changes overall. The nitric oxide mechanism — improving blood flow independently of testosterone — may account for many of the observed sexual benefits. Both the evidence and its honest interpretation are covered in the dedicated section below.
At a Glance — Key Evidence-Backed Benefits
Two Classical Identities — One Herb
What makes Gokshura unusual among Ayurvedic herbs is the precision of its dual therapeutic classification. Classical Ayurvedic texts assign most herbs to a single primary therapeutic category. Gokshura is specifically listed in two distinct groups in the Charaka Samhita — a deliberate acknowledgement by ancient physicians that this herb operates through two independent mechanisms in two different organ systems simultaneously. 2
Traditional Ayurvedic Uses
The classical texts describe Gokshura primarily as a urinary herb (Mutrala), with the reproductive applications presented as a secondary but important dimension. The Charaka Samhita (Sutra Sthana, Chapter 4) lists it specifically in the Mutravirechaniya group alongside Punarnava and Varuna — herbs chosen for their diuretic and urinary-channel-clearing properties. The Sushruta Samhita and Ashtanga Hridayam extend this to include its use for urinary stones (Ashmari) and gravel. 2
Ayurvedic Properties (Guna)
Conditions Traditionally Treated
- Urinary tract disorders — dysuria, haematuria, urinary retention, and burning micturition
- Kidney and bladder stones (Ashmari) — the foremost classical lithotriptic herb
- Male sexual debility — low libido, erectile dysfunction, and premature ejaculation
- Male infertility — low sperm count (Kshina Shukra) and poor sperm motility
- Oedema and dropsy — diuretic action reduces excess fluid accumulation
- Cardiac conditions — heart tonic and blood pressure modulator
- Rheumatic conditions — anti-inflammatory use for gout and joint pain
- Headache and nervous system disorders related to Vata imbalance
How It Was Traditionally Administered
The whole fruit or dried powder (Churna) is the primary form, taken with warm water or milk. For urinary conditions, a decoction is prepared by boiling the fruit in water and is taken twice daily — the high volume of liquid supporting the flushing action. For reproductive tonic use (Vajikaran), it is combined with milk, ghee, and honey — the classical enriching vehicle — and sometimes with Ashwagandha and Kapikachu in compound formulas. Gokshuradi Guggulu (Gokshura combined with guggul resin) is a classical formula for urinary stones and kidney support still in widespread use today.
Key Active Compounds
A comprehensive PMC-indexed review (Dincheva et al., 2020) synthesised the phytochemistry of T. terrestris across global studies, identifying the steroidal saponins — led by protodioscin — as the primary bioactive class, alongside flavonoids, alkaloids, and phytosterols. 3
Primary Bioactive Constituents
The Testosterone Question — What the Evidence Actually Shows
No aspect of Gokshura's pharmacology has generated more debate — or more marketing exaggeration — than its relationship with testosterone. Here is an honest account of what the peer-reviewed evidence shows, and where the genuine scientific uncertainty lies. 45
In animal studies: Consistent and significant testosterone increases have been demonstrated across multiple species. Protodioscin is believed to act by stimulating luteinising hormone (LH) release from the pituitary — which in turn signals the testes to produce testosterone. Additionally, protodioscin upregulates endothelial nitric oxide synthase (eNOS), improving penile blood flow through a mechanism entirely independent of testosterone. 3
In human studies: The picture is more nuanced. Earlier systematic reviews (e.g. Borrione et al., 2012) concluded that testosterone evidence in healthy humans was not convincing. However, the more recent evidence — particularly the 2019 placebo-controlled RCT in hypogonadal men (GamalEl Din et al.) — found statistically significant testosterone elevation AND improved IIEF scores after 3 months. 6 The 2023 Andrologia meta-analysis showed significant sperm parameter improvements but non-significant testosterone changes in pooled analysis. 5 The 2025 systematic review concluded that clinical evidence for erectile dysfunction improvement is supported, with testosterone elevation more consistently demonstrated in hypogonadal rather than eugonadal populations. 4
The honest summary: Gokshura's most strongly validated human benefits are sperm quality improvement and erectile function support in men with low testosterone — likely via both hormonal and nitric oxide mechanisms. Testosterone benefits in healthy men with normal levels are less consistently demonstrated and should not be overstated.
What the Research Says
Gokshura's most classical and consistently validated property is its urinary tonic and diuretic action. A clinical study evaluating Gokshura-Punarnava Basti (medicated enema) in patients with microalbuminuria in diabetes mellitus (published in AYU, PMC3665189) demonstrated significant reduction in urinary protein excretion — indicating improved glomerular filtration function and reduced kidney cell damage. 7 The diuretic mechanism is now well-characterised: steroidal saponins increase glomerular filtration rate; flavonoids reduce urinary tract inflammation; and the herb's antimicrobial activity against common uropathogens (including E. coli and Klebsiella) supports its use in urinary tract infections. Preclinically, T. terrestris extract reduces calcium oxalate crystal deposition in the renal tubules in stone-forming rat models — directly validating the classical lithotriptic (Ashmari) application. 3
The most rigorous single clinical study of Gokshura for erectile dysfunction is the randomised, placebo-controlled study by GamalEl Din et al. (2019) published in Urologia (PMID 30253697). Seventy men aged 18–65 with erectile dysfunction and lower urinary tract symptoms (late-onset hypogonadism) were randomised to Tribulus terrestris (three times daily for 3 months) or placebo. The treatment group showed statistically significant increases in total testosterone (p<0.001) and significant improvements in the validated 5-item IIEF (International Index of Erectile Function) score — from 10.7 to 16.1 (p<0.001). Importantly, despite testosterone elevation, the International Prostate Symptom Score did not worsen. 6 The proposed mechanism involves protodioscin stimulating LH release from the pituitary (increasing intratesticular testosterone production) and separately upregulating eNOS — improving nitric oxide-driven penile vascular dilation. 3
The 2023 meta-analysis by Ara et al. published in Andrologia pooled 30 studies (including human and animal data) to evaluate the profertility and aphrodisiac effects of T. terrestris. In the human sub-analysis (133 subjects), the pooled data showed statistically significant improvements in sperm concentration (SDM = 0.624, 95% CI 0.13–1.117, p = 0.013) and sperm motility (SDM = 0.742, 95% CI 0.331–1.152, p = 0.001). 5 Testosterone and LH changes were non-significant in the pooled analysis, suggesting that the sperm improvements may operate through antioxidant mechanisms (Nrf2/HO-1 upregulation, free radical scavenging) and Ca²⁺ channel modulation affecting sperm motility — independent of testosterone. The earlier double-blind clinical study by Sellandi et al. (2012, AYU) in oligozoospermic men given Gokshura granules for 60 days confirmed significant improvements in sperm count and motility. 8
A phase II double-blind, placebo-controlled study by Mkrtchyan et al. (2000) published in Phytomedicine evaluated a standardised T. terrestris preparation (TTT-28) in patients with mild to moderate hypertension. The treatment group showed significant reductions in blood pressure and improved exercise tolerance, with the mechanism attributed to nitric oxide-mediated coronary artery dilation and reduced peripheral vascular resistance. 9 Preclinical studies confirm cholesterol-lowering effects — diosgenin activates PPARγ receptors, stimulating fatty acid oxidation and improving lipid profiles. The 2020 comprehensive PMC review lists cardioprotective effects as among the well-established pharmacological properties of T. terrestris across multiple species. 3
The comprehensive 2020 PMC review (Dincheva et al.) confirmed significant anti-inflammatory activity through COX enzyme inhibition, consistent with Gokshura's classical use in rheumatic conditions and gout. 3 Diosgenin has been shown to inhibit NF-κB signalling and reduce TNF-α and IL-6 production in inflammatory models. Antidiabetic effects — including improved insulin sensitivity, reduced fasting glucose, and activation of GLUT-4 glucose transporters via diosgenin's PPARγ stimulation — have been demonstrated in multiple animal models. 3 The anti-inflammatory and antioxidant properties are likely contributors to Gokshura's sperm quality benefits — since oxidative stress in seminal plasma is a major driver of poor sperm parameters, and Gokshura's Nrf2/HO-1 upregulation directly addresses this. 5
Sperm Meta-Analysis — Key Numbers
The 2023 Andrologia meta-analysis (Ara et al.) provides the most rigorous pooled analysis of T. terrestris effects on male fertility parameters to date, combining 30 studies across human and preclinical populations. 5
The authors noted that the sperm improvements were significant even though testosterone and LH changes were non-significant in pooled analysis — suggesting antioxidant mechanisms (Nrf2/HO-1 pathway upregulation, ROS scavenging) and Ca²⁺ channel modulation as the likely drivers of improved sperm parameters, independent of hormonal changes. 5
Traditional Use & Modern Dosage
Gokshura is most effective when taken consistently over 4–8 weeks. For urinary conditions, taking with large volumes of warm water maximises the diuretic flushing effect. For reproductive support, the classical combination with warm milk, ghee, and other Vajikaran herbs is preferred.
| Form | Traditional Preparation | Typical Dose (Adult) |
|---|---|---|
| Powder (Churna) | Dried fruit ground fine; taken with warm water (urinary), warm milk & ghee (reproductive tonic) | 3–6 g/day in divided doses |
| Capsules (Standardised) | Standardised extract (typically 40–60% saponins, 6–20% protodioscin); most studied form | 250–750 mg/day; follow product guidance |
| Decoction (Kwath) | Fruit boiled in water and strained; taken with large volumes of warm water for urinary conditions | 20–40 ml twice daily; classical urinary preparation |
| Gokshuradi Guggulu | Classical compound tablet of Gokshura with guggul resin; used for kidney stones and urinary disorders | 2–4 tablets twice daily; as directed by practitioner |
| Milk Preparation | Fruit simmered in milk and water; strained; classical Vajikaran preparation for reproductive support | Once or twice daily; combined with Ashwagandha or Kapikachu in SupaMan |
The clinical RCT evidence uses 750 mg/day of whole fruit extract (three times daily). For urinary stone prevention, lower doses with high fluid intake are appropriate for longer periods. Gokshura is typically used in 4–8 week therapeutic cycles with rest periods, particularly for reproductive applications.
Supaveda Products with Gokshura
Gokshura features in three of our products — as a pure standalone powder, as the urinary and reproductive tonic component of SupaMan, and as part of our Supa Life Chyawanprash:
Our certified organic Tribulus terrestris fruit powder — the traditional form for both urinary health and reproductive support. Use the classical way with warm water for kidney and urinary conditions, or with warm milk and ghee as part of a Vajikaran tonic for male vitality. Ideal for combining with Ashwagandha and Kapikachu as a male wellness trio.
Gokshura is the urinary and reproductive tonic component of SupaMan's three-herb formula, alongside Ashwagandha (stress and muscle adaptogen) and Kapikachu (Mucuna pruriens, dopamine and testosterone support). In this combination, Gokshura provides the nitric oxide enhancement and protodioscin-mediated LH support, while its Ayurvedic classification as Vajikaran — an aphrodisiac and virilising tonic — has been prescribed for men seeking reproductive vitality for over 2,000 years.
Our organic, vegan Chyawanprash — 16 Ayurvedic herbs including Gokshura. In the classical Chyawanprash formula, Gokshura contributes its diuretic, kidney-toning, and vitality-building properties to the overall rejuvenative blend — supporting urinary channel health and reproductive tissue nourishment as part of a comprehensive daily Rasayana.
Safety & Precautions
Gokshura has a well-established safety record across traditional use and modern clinical studies. The GamalEl Din RCT (2019) noted a mild, statistically significant elevation in AST (liver enzyme) in the treatment group, though this remained within normal range and no adverse clinical events were reported. 6 The following precautions apply:
Please note
- Prostate cancer: Gokshura stimulates testosterone and may raise PSA levels — it should not be used by men with prostate cancer or suspected prostate cancer without oncological guidance. The GamalEl Din RCT noted a significant PSA elevation (p=0.007) in the treatment group, though IPSS did not worsen. 6
- Pregnancy: Contraindicated during pregnancy — protodioscin's LH/hormonal effects are inappropriate during gestation. Avoid internal therapeutic use.
- Hormone-sensitive conditions: As a herb with androgenic and LH-stimulating properties, Gokshura should be used cautiously by those with hormone-sensitive conditions or on hormonal medications.
- Kidney disease: Paradoxically, although Gokshura is a kidney tonic, very high doses of the whole plant may stress compromised kidneys. Use conservative doses if you have diagnosed kidney disease and consult a healthcare provider.
- Blood pressure medications: Gokshura has blood pressure-lowering effects — those on antihypertensive medications should monitor blood pressure and consult their healthcare provider before use. 9
- Liver monitoring: Mild transient AST elevation was noted in one RCT — those with liver conditions should undertake periodic monitoring during extended use.
Key Takeaways
Evidence-backed bullet points:
Gokshura means "cow's hoof" — named for its distinctive spiked fruit; used in Ayurveda, China, and Ancient Greece for over 5,000 years
Classified in two distinct Ayurvedic groups simultaneously — urinary herbs (Mutravirechaniya) AND aphrodisiac herbs (Vajikaran) — reflecting its dual mechanism
2023 Andrologia meta-analysis (30 studies, 133 human subjects): significant improvements in sperm concentration (p=0.013) and motility (p=0.001)
RCT in hypogonadal men: IIEF erectile function score improved from 10.7 to 16.1 (p<0.001) — with significant testosterone elevation alongside
Protodioscin upregulates endothelial nitric oxide synthase (eNOS) — improving penile blood flow through a mechanism independent of testosterone
The foremost classical herb for kidney stones (Ashmari) — reduces calcium oxalate crystallisation in renal tubules; still prescribed in Gokshuradi Guggulu today
Phase II double-blind RCT: standardised T. terrestris reduced blood pressure and improved exercise tolerance in patients with mild-moderate hypertension
Sperm improvements operate through Nrf2/HO-1 antioxidant upregulation and Ca²⁺ channel modulation — mechanisms independent of testosterone
Testosterone benefits most consistently demonstrated in men with low baseline testosterone (hypogonadal) — effects in healthy eugonadal men are less established
Well-tolerated in RCTs at standard doses; avoid if prostate cancer risk — PSA elevation noted; consult GP if on blood pressure medication
References
- Gavin Publishers (2017) 'Tribulus terrestris — An Ethnomedical & Phytochemical Review', Journal of Complementary Medicine and Alternative Healthcare. Available at: https://www.gavinpublishers.com/article/view/tribulus-terrestris-an-ethnomedical-phytochemical-review. [5,000-year traditional use history; Ayurvedic, TCM, and Greek documentation; Gokshura Sanskrit etymology; Mutravirechaniya and Vajikaran classification].
- Sharma, P.V. (1997) Dravyaguna Vijnana, Vol. II. Varanasi: Chaukhambha Bharati Academy. [Classical Charaka Samhita dual classification — Mutravirechaniya and Vajikaran; traditional preparation and indication data; Gokshuradi Guggulu formula reference].
- Dincheva, I., Badjakov, I., Kondakova, V. and Batchvarova, R. (2020) 'A Comprehensive Review of the Phytochemical, Pharmacological, and Toxicological Properties of Tribulus terrestris L.', PMC — Plants, 9(6), p.742. doi: 10.3390/plants9060742. PMC7277861. [Protodioscin LH/testosterone mechanism; eNOS nitric oxide mechanism; diosgenin PPARγ anti-diabetic/anti-lipidaemic; calcium oxalate renal stone reduction preclinical; anti-inflammatory COX inhibition; comprehensive phytochemistry].
- Santos H.O. et al. (2025) 'Effects of Tribulus (Tribulus terrestris L.) Supplementation on Erectile Dysfunction and Testosterone Levels in Men — A Systematic Review of Clinical Trials', PMC, PMC11990417. doi: 10.3390/nu17071192. [Most recent systematic review; clinical evidence for ED improvement and testosterone in hypogonadal men; evidence quality assessment; 2025].
- Ara, S.A., Chopra, A. and Bharti, M. (2023) 'The Profertility and Aphrodisiac Activities of Tribulus terrestris L.: Evidence from Meta-Analyses', Andrologia, 2023, p.7118431. doi: 10.1155/2023/7118431. [Primary: sperm concentration SDM 0.624, p=0.013; sperm motility SDM 0.742, p=0.001 (133 human subjects); testosterone/LH non-significant; Nrf2/HO-1 antioxidant mechanism; Ca²⁺ channel sperm motility mechanism].
- GamalEl Din, S.F., Abdel Salam, M.A., Mohamed, M.S., Ahmed, A.R., Motawaa, A.T., Saadeldin, O.A. and Elnabarway, R.R. (2019) 'Tribulus terrestris versus placebo in the treatment of erectile dysfunction and lower urinary tract symptoms in patients with late-onset hypogonadism: A placebo-controlled study', Urologia, 86(2), pp.74–78. doi: 10.1177/0391560318802160. PMID: 30253697. [Primary: testosterone p<0.001; IIEF 5-item 10.7→16.1 p<0.001; PSA elevation p=0.007; IPSS unchanged p=0.67; N=70 randomised].
- Ramteke, R., Thakar, A., Trivedi, A. and Patil, P. (2012) 'Clinical efficacy of Gokshura-Punarnava Basti in the management of microalbuminuria in diabetes mellitus', AYU, 33(4), pp.537–541. doi: 10.4103/0974-8520.110535. PMC3665189. [Urinary protein excretion reduction; glomerular filtration improvement; kidney tonic clinical evidence].
- Sellandi, T.M., Thakar, A.B. and Baghel, M.S. (2012) 'Clinical study of Tribulus terrestris Linn. in Oligozoospermia: A double blind study', AYU, 33(3), pp.356–364. doi: 10.4103/0974-8520.108822. PMC3561606. [Double-blind clinical study; oligozoospermic men; Gokshura granules 60 days; significant improvement in sperm count and motility].
- Mkrtchyan, A., Panosyan, V., Panossian, A., Wikman, G. and Wagner, H. (2005) 'A phase II double-blind, placebo-controlled randomised study of Tribulus terrestris extract TTT-28 in hypertension', Phytomedicine, 12(6–7), pp.403–409. doi: 10.1016/j.phymed.2003.10.007. PMID: 16008115. [Phase II RCT; blood pressure reduction; exercise tolerance improvement; nitric oxide coronary dilation mechanism].
- Borrione, P., Grasso, L., Racca, S. and Parisi, A. (2012) 'Non-medical use of hormones and related substances in sport: a tentative approach to prevalence and related health problems', Journal of Sports Medicine and Physical Fitness. [Earlier systematic review noting limited human testosterone evidence in healthy eugonadal athletes; Bai Ji Li Chinese medicine documentation].