Botanical
Ashwagandha
Ashwagandha, Withania somnifera, is a shrub from the nightshade family used in Ayurvedic medicine. Supplements usually contain root extract.
Also listed as Withania Somnifera, Indian Ginseng, Smell of Horse, Winter Cherry
The extract matters more than the name
Root powder, root extract and root-and-leaf extract are different preparations. The BfR notes that plant parts and extraction methods change their composition, so the milligram amount alone does not establish that a product matches one used in a trial. 1
What amounts were studied?
The sleep review included extracts at 120, 250 or 600 mg daily, over six to twelve weeks. These are descriptions of experiments, not interchangeable doses or a general recommendation. 2