Powdered, encapsulated berries, 1–3 teaspoons (5–15 grams) per day, are sometimes recommended.⁴ A similar amount of berries can be made into tea by adding 1/2–1 teaspoon (2–5 grams) of powdered or crushed berries to 1 cup (250 ml) of boiling water and steeping for ten to fifteen minutes. Alternatively, 3/4–1 teaspoon (3–5 ml) of tincture three times per day can be taken.