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Head-to-head evidence comparison — which supplement is right for you?
Black Cohosh vs Stinging Nettle Root: Stinging Nettle Root has the stronger overall evidence (5.5 vs 5/10); they're alternatives for menopause support — 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
Likely helps
7 of 10 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
7 of 7 studies with measurable effects showed benefit.
Top outcomes
20-40mg standardized extract (1mg triterpene glycosides)
Morning and evening, With or without food
Standardized extract (2.5% triterpene glycosides)
300-600mg root extract
With meals, Split into 2-3 doses
Standardized root extract
4-8 weeks
4-8 weeks
4-8 weeks
4-8 weeks
4-8 weeks
Black cohosh extracts in women with menopausal symptoms: an updated pairwise meta-analysis
Menopause (New York, N.Y.) (2023) · Meta analysis · n=2310
However, black cohosh did not significantly improve anxiety (Hedges' g = 0.194, 95% CI = -0.296 to 0.684, P = 0.438) or depressive symptoms (Hedges' g = 0.406, 95% CI = -0.121 to 0.932, P = 0.131).
Modulation of the hypothalamic-pituitary-adrenal (HPA) axis by plants and phytonutrients: a systematic review of human trials
Nutritional neuroscience (2022) · Systematic review
For most phytonutrients, the effects of supplementation on HPA-axis activity in humans is unclear.
Review & meta-analysis: isopropanolic black cohosh extract iCR for menopausal symptoms - an update on the evidence
Climacteric : the journal of the International Menopause Society (2021) · Meta analysis · n=43759
Effect sizes were larger when higher dosages of iCR as monotherapy or in combination with St.
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) · Meta analysis
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 meta-analyses showing modest improvement in hot flashes. Isopropanolic extracts (iCR) showed most consistent effects. Effect sizes were larger at higher dosages but evidence shows only moderate benefit overall.
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 5/10) and wins in 2 of 3 categories.
For menopause support, Stinging Nettle Root has a higher relevance score (72 vs 58).
No known interactions between Black Cohosh 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.