Properties
The leaf principally possesses diaphoretic and diuretic properties in addition to those of an anti-inflammatory and choleretic nature. The diuretic action of birch makes it effective in the treatment and prevention of gallstones and kidney stones. The fresh leaves are more active, and this suggests that the essential oil reinforces the diuretic action. It can be used, thanks to its diaphoretic properties, as an antipyretic. The increased perspiration not only fights fevers but also helps eliminate toxins and bacteria, promoting detoxification of the body and urinary tract. Birch is also effective in the prevention of heart, arterial hypertension and ascites, venous insufficiency and cellulite. Birch sap actually counteracts water retention and venous stagnation.
Nutraceuticals
Leaf
- Flavonoids (minimum content: 1.5%): hyperoside (2-3%)
- Essential oil (1%): oxides sesquiterpenic
- Tannins (leucoantocianidine), vitamin C (0.5% in fresh leaves), caffeic and chlorogenic acid
- Resins, triterpene alcohols (derivatives of lupano: lupeol, betulinol, betulinic acid and dammarane), saponins
Bark
- Triterpenes and their saponins: 10-14% betulina (birch camphor)
- Tannins