Ashwagandha, also known by its botanical name Withania somnifera, is a small woody plant with yellow flowers native to India and North Africa. It’s classified as an adaptogen, as it’s believed to help your body manage stress better. The plant — particularly its root — has been used for over 3,000 years as a natural Ayurvedic remedy against various ailments. Modern science also links it to health benefits, such as reduced stress and anxiety and improved blood sugar levels, mood and memory. This article reviews the optimal dosages needed to reap different health benefits.