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Head-to-head evidence comparison — which supplement is right for you?
Green Tea Extract vs Stinging Nettle Root: Green Tea Extract has the stronger overall evidence (7.5 vs 5.5/10); they're alternatives for inflammation-related symptoms — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Green Tea Extract wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
7 of 9 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
7 of 7 studies with measurable effects showed benefit.
Top outcomes
250-500mg EGCG (or 500-1000mg green tea extract)
With meals, Morning or pre-exercise
Standardized extract (45-50% EGCG)
300-600mg root extract
With meals, Split into 2-3 doses
Standardized root extract
and 2 more not shown
and 1 more not shown
Acute and 4-8 weeks
Acute
30-60 minutes
4-8 weeks
4-8 weeks
Green tea (Camellia sinensis) for the prevention of cancer
The Cochrane database of systematic reviews (2020) · Meta analysis · n=1795
For incident prostate cancer, the summary risk ratio (RR) in the green tea-supplemented participants was 0.50 (95% confidence interval (CI) 0.18 to 1.36), based on three studies and involving 201 participants (low-certainty evidence).
Impact of flavan-3-ols on blood pressure and endothelial function in diverse populations: a systematic review and meta-analysis of randomized controlled trials
European journal of preventive cardiology (2025) · Meta analysis · n=5205
Flavan-3-ol interventions included epicatechin, epigallocatechin-gallate, cocoa products, tea, grape extract, and apples delivering 586 mg (95% CI 510, 662) total flavan-3-ols.
The effects of green tea extract supplementation on body composition, obesity-related hormones and oxidative stress markers: a grade-assessed systematic review and dose-response meta-analysis of randomised controlled trials
The British journal of nutrition (2024) · Meta analysis · n=3802
Pooled effect sizes indicated that BM, BFP, BMI and MDA significantly reduced following GTE supplementation.
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
⚠️ NOT THE ROOT INDICATION. This entry is Urtica dioica ROOT, whose evidence base is BPH and lower urinary tract symptoms; this study is about glycemic control in type 2 diabetes. The abstract does not state which part of the plant was used. Read it as species-level context, not as root evidence.
Dietary Plants for the Prevention and Management of Kidney Stones: Preclinical and Clinical Evidence and Molecular Mechanisms
International journal of molecular sciences (2018) · Review
⚠️ NOT THE ROOT INDICATION. This entry is Urtica dioica ROOT, whose evidence base is BPH and lower urinary tract symptoms; this study is about kidney-stone prevention. The paper describes a LEAF/aerial preparation. Read it as species-level context, not as root evidence.
Plant food supplements with anti-inflammatory properties: a systematic review (II)
Critical reviews in food science and nutrition (2013) · Systematic review
⚠️ NOT THE ROOT INDICATION. This entry is Urtica dioica ROOT, whose evidence base is BPH and lower urinary tract symptoms; this study is about anti-inflammatory effects. The abstract does not state which part of the plant was used. Read it as species-level context, not as root evidence.
Based on meta-analysis showing 9.29 mg/dl LDL reduction with 107-856 mg/d EGCG. Optimal cardiovascular benefits observed at 400-500 mg/day. Take with food to reduce GI side effects.
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.
Green Tea Extract has a higher evidence score (7.5/10 vs 5.5/10) and wins in 2 of 3 categories.
For inflammation-related symptoms, Green Tea Extract has a higher relevance score (85 vs 55).
No known interactions between Green Tea 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.