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Head-to-head evidence comparison — which supplement is right for you?
Rye Pollen Extract vs Stinging Nettle Root: Stinging Nettle Root has the stronger overall evidence (5.5 vs 4.8/10); they're alternatives for prostate health — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Stinging Nettle Root wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Likely helps
7 of 7 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Rye Pollen Extract and Stinging Nettle Root have evidence — compare verdict strength side-by-side.
2 capsules/tablets three times daily (every 8 hours), or 375-750 mg twice daily
Three divided doses per day, roughly every 8 hours, With or without food — no trial specified a meal requirement
Cernilton / Cernitin standardized rye-grass pollen extract
300-600mg root extract
With meals, Split into 2-3 doses
Standardized root extract
12-24 weeks
12-24 weeks
6-12 weeks
6-12 weeks
4-8 weeks
4-8 weeks
Cernilton for benign prostatic hyperplasia
Cochrane Database of Systematic Reviews (2000) · Systematic review · n=444
444 men were enrolled in 2 placebo-controlled and 2 comparative trials lasting from 12 to 24 weeks; three used a double-blind method although treatment allocation concealment was unclear in all.
A pollen extract (Cernilton) in patients with inflammatory chronic prostatitis-chronic pelvic pain syndrome: a multicentre, randomised, prospective, double-blind, placebo-controlled phase 3 study
European Urology (2009) · Rct · n=139
139 men with NIH category IIIA CP/CPPS were randomised to pollen extract (n=70) or placebo (n=69), dosed as two capsules every 8 hours for 12 weeks.
A systematic review of Cernilton for the treatment of benign prostatic hyperplasia
BJU International (2000) · Systematic review · n=444
444 men were enrolled in two placebo-controlled and two comparative trials lasting 12-24 weeks; concealment of treatment allocation was unclear in all.
The effect of nettle (Urtica dioica) supplementation on the glycemic control of patients with type 2 diabetes mellitus: A systematic review and meta-analysis
Phytotherapy research : PTR (2020) · Meta analysis · n=401
The results of the meta-analysis revealed a significant reduction in FBS concentrations (weighted mean difference [WMD]: -18.01 mg/dl, 95% confidence interval [CI]: -30.04 to -5.97, p < .001, I2 = 94.6%) following nettle supplementation.
Dietary Plants for the Prevention and Management of Kidney Stones: Preclinical and Clinical Evidence and Molecular Mechanisms
International journal of molecular sciences (2018) · Review
The main underlying mechanisms of these dietary plants and their isolated phytonutrients in the management of urolithiasis include diuretic, antispasmodic, and antioxidant activity, as well as an inhibitory effect on crystallization, nucleation, and aggregation of crystals.
Plant food supplements with anti-inflammatory properties: a systematic review (II)
Critical reviews in food science and nutrition (2013) · Systematic review
The bibliographic search found no paper regarding the anti-inflammatory effects of Calendula officinalis L. and Symphytum officinalis L. by oral use.
Based on multiple RCTs showing IPSS improvements in BPH patients. Most studies used combination formulations with saw palmetto. Effect magnitude conservative due to mixed study designs and combination treatments.
AI-estimated from published studies. Interpret as directional guidance.
Stinging Nettle Root has a higher evidence score (5.5/10 vs 4.8/10) and wins in 2 of 3 categories.
For prostate health, Stinging Nettle Root has a higher relevance score (80 vs 78).
No known interactions between Rye Pollen Extract and Stinging Nettle Root have been documented in our database. However, always consult a healthcare provider before combining supplements.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.