As an herbal dietary supplement, take one ashwagandha capsule a FEW TIMES PER WEEK. This herb, in some individuals, may cause drowsiness or sleepiness. Others who are restless or anxious may feel relaxation but no drowsiness. I suggest you avoid a high dose in the evening since sometimes it has a stimulatory effect before leading to sedation. For those who are tense and anxious, and hyper alert, ashwagandha can be taken during the day, for others, it is best taken in the evening. Most herbs are better absorbed on an empty stomach. There are no dietary restrictions with its use.
Have there been reviews to see which ashwagandha supplement is best?
Not that I am aware of. However, different processing procedures and different extraction procedures are likely to make the different products produce slightly or moderately different effects in terms of reduction of anxiety or influence on mood and sedation.
I prefer taking breaks from the use of herbs, that is just my personal viewpoint since I tend to err on the side of caution.
Ashwagandha powder or capsule is good general all rounder to help you heal.
You can buy Divya Ashwagandha.