The diuretic effect of the leaves is mainly due to the relatively high content of minerals such as potassium. These remain to a large extent in the urine and pull water with them (osmotic effect). This leads, but only with sufficient fluid intake, to increased urination.
Nettle and its effect
The anti-inflammatory (antiphlogistic) effect of the leaves/herb is mainly due to caffeoyl malic acid and unsaturated fatty acids, which inhibit various inflammatory cells and inflammatory mediators in their activity.
The stinging hairs inject histamine and acetylcholine into the skin on contact, causing wheal formation.
In the roots, sterols are mainly responsible for the effect. These interact with various receptors and enzymes of the prostate, resulting in immediate improvement of symptoms and increase in urine volume. Furthermore, the root is also said to have anti-inflammatory and immunomodulatory effects.
Side effects of nettle
In very rare cases, mild gastrointestinal symptoms such as nausea, heartburn, diarrhea, bloating and flatulence have been observed when taking nettle preparations.
After drinking nettle tea made from leaves, the herb or the root, allergic reactions such as skin irritation, itching, rash and stomach irritation may occur in isolated cases.
Nettle root is well suited for long-term use, as harmful side effects have not been reported to date, even with prolonged use.
Stinging nettle: interactions
Currently, there are no known interactions of nettle preparations with other remedies.