Botanical
Chaste tree
Chaste tree (Vitex agnus-castus) is a Mediterranean shrub whose dried fruit, called chasteberry, is used in herbal preparations, mainly for premenstrual symptoms.
Also listed as Chaste Tree Berry, Chasteberry, Vitex Agnus-castus, Chaste Tree Fruit
Why a milligram number is not enough
EMA lists 20 mg daily for its specified well-established-use dry extract, with continuous use over three months. This is a preparation-specific monograph dose, not an interchangeable dose for fruit powder or every extract. 1
Sources
- European Union herbal monograph on Vitex agnus-castus L., fructus European Medicines Agency