special subjects
Ashwagandha
What is ashwagandha?
Ashwagandha is a small evergreen shrub that grows in India, the Middle East, and parts of Africa. Its botanical name isWithania somnifera, and it is also known as Indianginsengand winter cherry. The active chemical ingredients are known as withanolides. The shrub's roots and berries are used to make an Ayurveda (traditional Hindu medical system). Ashwagandha is available in capsules and powders that can be mixed into soft foods (such as yogurt or oatmeal). The root, root powder, and standardized withanolide extracts are used in a wide range of doses. (Unlike with prescription drugs, there is often little—or conflicting—evidence about the best dose of supplements, including ashwagandha.) Some dietary supplements used to improve sleep or treat stress contain ashwagandha among other ingredients. (See also Overview of Dietary Supplements .) 