Foundational guide
Ashwagandha Supplements: Evidence and Safety
Review the evidence on ashwagandha supplements, including stress research, safety cautions, and the limits of current findings.
Read the ashwagandha evidence, its limitations, safety cautions, and verified product labels.
Ashwagandha (Withania somnifera) is an evergreen shrub used in traditional Ayurvedic medicine. Supplements may contain extracts of the root, leaf, or both. These preparations differ, so findings from a particular extract should be read in the context of the study that tested it.
This guide brings together the stress, sleep and cognition research, studied dosage and extract protocols, and safety guidance discussed in the linked articles. Read the study populations, durations, and limitations alongside each reported result. A finding in a short clinical trial is not a prediction of an individual response or a personal dosing recommendation.
The safety evidence deserves as much attention as possible benefits. The linked safety review covers reported adverse effects, liver injury reports, pregnancy and breastfeeding cautions, thyroid and autoimmune disorders, surgery, and possible medication interactions. This information is educational and does not replace advice from a qualified healthcare professional.