Nettle leaf (Urtica dioica leaf)

Tier 2 — promising · Allergies · Hayfever · Anti-inflammatory

Different from nettle root (used for prostate). The leaf form is traditionally used for seasonal allergies and hayfever. One randomised trial found freeze-dried nettle leaf significantly reduced allergy symptoms compared to placebo. May work by inhibiting histamine release and inflammatory prostaglandins. Very safe as a food (cooked nettles are eaten as a vegetable in many cultures). More clinical evidence is needed.

Dose: 300 mg freeze-dried leaf × 3 daily for allergies; leaf use is different from root (prostate)