EVO T
Scientific Evidence & Clinical References
This page summarises peer‑reviewed scientific research relevant to the ingredients used in EVO T. All studies referenced are published in recognised scientific journals and indexed on PubMed. Statements are presented for educational purposes and relate to supporting normal physiological functions.
Ashwagandha (KSM‑66®)
Summary of evidence:
Randomised, double‑blind, placebo‑controlled human studies show that standardised Ashwagandha root extract (KSM‑66®) supports healthy testosterone levels, reduces stress (cortisol), and improves strength, recovery, and aspects of male sexual wellbeing.
Key studies:
A randomised, double‑blind, placebo‑controlled study on the effect of ashwagandha on sexual health in healthy men
PubMed: https://pubmed.ncbi.nlm.nih.gov/35873404/Examining the effect of Withania somnifera supplementation on muscle strength and recovery in resistance‑trained men
PubMed: https://pubmed.ncbi.nlm.nih.gov/26609282/
Relevance:
Supports hormonal balance, physical performance, recovery, and male vitality.
Shilajit (Purified, Plant‑Derived Humic Substances)
Summary of evidence:
Human clinical research shows purified shilajit supplementation can significantly increase total and free testosterone levels while supporting cellular energy and antioxidant pathways.
Key study:
Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers (randomized, double‑blind, placebo‑controlled; 250 mg twice daily for 90 days)
PubMed: https://pubmed.ncbi.nlm.nih.gov/26395129/
Relevance:
Supports androgen levels, cellular energy metabolism, and male vitality, particularly in ageing men.
Fenugreek (Trigonella foenum‑graecum)
Summary of evidence:
Fenugreek is one of the most consistently studied botanicals for male health. Clinical trials and meta‑analysis data suggest support for normal testosterone levels, libido, and physical performance when standardised extracts are used.
Key study:
Effect of fenugreek extract supplementation on testosterone levels in men: a systematic review and meta‑analysis
PubMed: https://pubmed.ncbi.nlm.nih.gov/32048383/
Relevance:
Supports hormonal balance, libido, and strength markers.
Maca Root (Lepidium meyenii)
Summary of evidence:
Human clinical trials show maca supports sexual desire, libido, mood, and perceived energy in men without significantly altering serum testosterone levels.
Key studies:
Effect of Lepidium meyenii (Maca) on sexual desire in healthy men: a randomized, double‑blind, placebo‑controlled study
PubMed: https://pubmed.ncbi.nlm.nih.gov/12472620/Maca (Lepidium meyenii) for improving sexual function: a systematic review
PubMed: https://pubmed.ncbi.nlm.nih.gov/20691074/
Relevance:
Supports libido and male vitality through non‑hormonal pathways.
Ginger (Zingiber officinale)
Summary of evidence:
Research indicates ginger supports testosterone production, sperm quality, and antioxidant status, primarily through mechanisms related to oxidative stress reduction.
Key study:
The effects of ginger on testosterone, oxidative stress and fertility in males: a systematic review
PubMed: https://pubmed.ncbi.nlm.nih.gov/33150931/
Relevance:
Supports male reproductive health and antioxidant protection.
Horny Goat Weed (Epimedium spp.)
Summary of evidence:
Horny Goat Weed contains icariin, a bioactive flavonoid studied for its effects on nitric‑oxide‑related and circulation‑dependent mechanisms relevant to erectile physiology. Evidence is primarily preclinical.
Key study:
Erectogenic and neurotrophic effects of icariin in vitro and in vivo
PubMed: https://pubmed.ncbi.nlm.nih.gov/20141584/
Relevance:
Supports blood‑flow‑dependent sexual performance mechanisms.
Tribulus Terrestris
Summary of evidence:
Human research shows mixed results for testosterone, with most studies indicating no consistent increase in serum testosterone. However, Tribulus remains traditionally used for sexual function and male vitality.
Key studies:
The effect of Tribulus terrestris on testosterone levels in men
PubMed: https://pubmed.ncbi.nlm.nih.gov/21373970/Tribulus terrestris supplementation and resistance training
PubMed: https://pubmed.ncbi.nlm.nih.gov/11990779/
Relevance:
Supports sexual function and performance without synthetic hormone manipulation.
Beetroot & Cocoa
Summary of evidence:
Beetroot (dietary nitrate) and cocoa (flavanols) are associated with improved nitric oxide availability and vascular function, supporting circulation, endurance, and exercise performance.
Key studies:
Dietary nitrate and exercise performance: a systematic review
PubMed: https://pubmed.ncbi.nlm.nih.gov/27171852/Cocoa flavanols and cardiovascular health
PubMed: https://pubmed.ncbi.nlm.nih.gov/22525230/
Relevance:
Supports blood flow, endurance, and training performance.
Black Pepper (Piperine)
Summary of evidence:
Piperine has been shown to enhance the bioavailability of nutrients and plant compounds by influencing absorption and metabolism.
Key study:
Influence of piperine on the bioavailability of nutrients
PubMed: https://pubmed.ncbi.nlm.nih.gov/9619120/
Relevance:
Improves absorption and effectiveness of the overall formula.
Regulatory Note
All referenced studies relate to supporting normal physiological functions. EVO T is a food supplement and is not intended to diagnose, treat, cure, or prevent disease. Individual responses may vary.
Additional Studies
Ashwagandha: A study involving infertile men found that supplementing with 675 mg of ashwagandha extract daily for 90 days resulted in a 17.3% increase in testosterone levels compared to a 3.8% increase in the placebo group. pmc.ncbi.nlm.nih.gov
Horny Goat Weed (Epimedium): Traditionally used in Chinese medicine, Horny Goat Weed contains icariin, which has been shown to improve erectile function by enhancing nitric oxide synthesis, leading to increased blood flow.
Shilajit: A randomised, double-blind, placebo-controlled clinical study found that supplementing with 250 mg of purified Shilajit twice daily for 90 days led to a 20.45% increase in total testosterone and a 19.14% increase in free testosterone levels in healthy men aged 45–55.
Maca Root: While maca has not been shown to affect serum testosterone levels, it has been associated with increased libido and improved sexual well-being.
Fenugreek: Supplementation with fenugreek has been linked to significant increases in testosterone concentrations.
Tribulus Terrestris: Some studies have reported improvements in erectile function with Tribulus supplementation.
Beetroot: A systematic review published in the Journal of the International Society of Sports Nutrition concluded that beetroot juice supplementation, rich in inorganic nitrates, effectively increases blood nitric oxide concentrations. This enhancement promotes vasodilation and blood flow, benefiting muscle contraction and potentially improving performance in high-intensity exercise.
Cocoa: Research from the Flaviola Health Study demonstrated that regular intake of cocoa flavanols improves endothelial function in healthy individuals. Over a one-month period, participants consuming 450 mg of cocoa flavanols twice daily experienced significant improvements in flow-mediated vasodilation, indicating enhanced blood vessel function and cardiovascular health.
Ginger: A review in the International Journal of Reproductive BioMedicine found that ginger supplementation enhances testosterone production in males, particularly under oxidative stress conditions. The proposed mechanisms include increased luteinizing hormone production, elevated cholesterol levels in the testes, reduced oxidative stress, and improved antioxidant enzyme activity.
Spinach: Spinach is a rich source of magnesium, a mineral associated with increased testosterone levels. Magnesium may reduce the levels of sex hormone-binding globulin (SHBG), thereby increasing the availability of free testosterone in the bloodstream.