Diet & Fitness

The German Commission E monograph recommends 4.5 grams of blackberry leaf per day.⁷ Blackberry tea is prepared by adding 1.5 grams of leaves or powdered root to 250 ml of boiling water and allowing it to steep for 10 to 15 minutes. Three cups per day should be drunk. Alternatively, one may use 3–4 ml of tincture three times each day.