Comparison guide
Nettle root or nettle leaf?
These are different parts of the same plant, sold for different jobs and chemically distinct. The root is the part with repeated randomised trials for prostate symptoms; leaf products are sold for hay fever, where the evidence is one small, unreplicated trial.
The options, compared
| Option | Evidence | Best for | The honest note | |
|---|---|---|---|---|
| Nettle Root | Moderate evidence | Prostate urinary symptoms | The part studied in benign prostatic hyperplasia, at 300–600 mg of extract daily; symptom-score improvements are modest, and the strongest data come from a combination with saw palmetto. Get urinary symptoms assessed first, since prostate cancer can present the same way. | View |
| Stinging Nettle | Limited evidence | Allergy use, very weak evidence | The hay-fever claim for the leaf rests on a single 1990 trial of 98 patients, never replicated, and even the largest root trial improved symptoms by under one point on a 35-point scale. The leaf is high in vitamin K and may reduce the effect of warfarin. | View |
Our verdict
If you want nettle for prostate symptoms, buy a root extract and expect a modest effect at best, after a medical assessment. Leaf products for allergy rest on very weak evidence, and joint, blood sugar and blood pressure claims have no adequate human support. Check which part of the plant the label contains, and avoid nettle in pregnancy.