Go-Less (Urtica dioica/Cucurbita pepo extract)

Go-Less is a standardized herbal extract combining Urtica dioica (stinging nettle) and Cucurbita pepo (pumpkin seed) for prostate and urinary health support. The blend works through anti-inflammatory sterols and lignans that help reduce prostate enlargement and improve urinary flow.

Origin & History

Go-Less is a standardized extract combining pumpkin seed (Cucurbita pepo) extract with stinging nettle (Urtica dioica) root extract. The pumpkin seed component is produced as a soft extract or oil formulation from medicinal pumpkin cultivars, standardized in phenolic derivatives and adenosine to ensure consistent potency.

Historical & Cultural Context

The research identifies pumpkin seed, nettle root, saw palmetto, and African cherry as prominent phytotherapeutic agents for benign prostatic hyperplasia in contemporary phytotherapy. However, specific historical or traditional use information was not provided in the available research.

Health Benefits

• Reduces International Prostate Symptom Score (IPSS) by at least 3 points in 75% of men with BPH after 12 months (moderate evidence from prospective study)
• Improves quality of life scores in men with moderate lower urinary tract symptoms (moderate evidence from 130-patient clinical study)
• Maintains sexual function without negative impact on IIEF-5 scores, unlike pharmaceutical alternatives (moderate evidence from 24-month study)
• Demonstrates anti-androgenic effects through Δ7-sterols that may inhibit prostate growth (preliminary evidence from experimental studies)
• Exhibits anti-inflammatory activity through γ-tocopherol content (preliminary evidence from mechanistic studies)

How It Works

Go-Less works through beta-sitosterol and other phytosterols from pumpkin seeds that inhibit 5-alpha-reductase enzyme, reducing DHT production that drives prostate enlargement. Urtica dioica lignans and polysaccharides provide anti-inflammatory effects by modulating cytokine production and blocking growth factor receptors in prostate tissue. The combination also supports smooth muscle relaxation in the bladder neck through alpha-adrenergic receptor modulation.

Scientific Research

A prospective noninterventional study at the University Clinic for Urology, Medical Faculty of Martin Luther University Halle-Wittenberg, followed 130 men aged 18-80 with moderate LUTS/BPH for up to 24 months, demonstrating significant improvements in IPSS scores and quality of life with 500mg twice-daily dosing. The research dossier references peer-reviewed publications but does not provide specific PMIDs.

Clinical Summary

A 12-month prospective study showed Go-Less reduced International Prostate Symptom Score (IPSS) by at least 3 points in 75% of men with benign prostatic hyperplasia, indicating moderate evidence for efficacy. A clinical study of 130 patients demonstrated improved quality of life scores in men with moderate lower urinary tract symptoms over the study period. The evidence base consists primarily of observational studies and smaller controlled trials, with moderate-quality evidence for symptom improvement. Larger randomized controlled trials are needed to confirm long-term efficacy and optimal dosing protocols.

Nutritional Profile

Go-Less is a proprietary combination extract of Urtica dioica (stinging nettle root) and Cucurbita pepo (pumpkin seed). Bioactive compounds from Urtica dioica include polysaccharides (glucans, arabinogalactans), lectins (Urtica dioica agglutinin/UDA, a 8.5 kDa isolectin), sterols (beta-sitosterol, stigmasterol, campesterol at approximately 0.05–0.1% of dry extract), phenolic acids (caffeic acid, chlorogenic acid), lignans (secoisolariciresinol, 3,4-divanillyltetrahydrofuran at trace concentrations), and scopoletin (a coumarin). Cucurbita pepo seed extract contributes delta-7-sterols (delta-7-sterol, delta-7-avenasterol, delta-7-stigmastenol collectively comprising approximately 60–70% of the sterol fraction), tocopherols (alpha- and gamma-tocopherol), cucurbitin (a cyclic amino acid, approximately 0.1–0.4% of seed), zinc (seed-derived, approximately 7–10 mg per 100g equivalent), selenium (trace), omega-6 linoleic acid, and carotenoids (lutein, beta-carotene at microgram-level concentrations). The proprietary extract ratio is not publicly disclosed but the combined formulation is standardized to deliver consistent phytosterol and lectin activity. Bioavailability notes: delta-7-sterols from pumpkin seed show moderate oral absorption enhanced by lipid co-ingestion; UDA lectins are partially degraded in gastric acid but retain biological activity at intestinal and systemic levels; beta-sitosterol bioavailability is estimated at 5–10% of ingested dose. Fiber, protein, and macronutrient content are negligible at therapeutic extract doses (typically 300–500 mg per dose).

Preparation & Dosage

Clinically studied dosage: 500 mg pumpkin seed soft extract twice daily (1,000 mg total daily dose). Multi-ingredient formulations may contain 2%-31% Cucurbita pepo by weight combined with 0.1%-25% Urtica dioica. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Saw palmetto (Serenoa repens), African cherry (Pygeum africanum), Horse chestnut (Aesculus hippocastanum), Beta-sitosterol, Zinc

Safety & Interactions

Go-Less is generally well-tolerated with mild gastrointestinal upset reported in some users, including nausea and stomach discomfort. The supplement may interact with anticoagulant medications due to compounds in stinging nettle that can affect blood clotting. Men taking alpha-blockers for blood pressure should consult healthcare providers as the combination may cause additive hypotensive effects. Safety during pregnancy and breastfeeding has not been established, and the supplement is not recommended for women or men under 40.