Ashwagandha has become ubiquitous. It is in nearly every stress supplement, sleep formula, and adaptogen stack. The problem is that most people take it wrong. The dose is typically too low. The timing is inconsistent. The expectations are misaligned with what the research actually shows. This matters because ashwagandha works — when taken correctly.
Form Matters
Not all ashwagandha products are equal. What matters is the withanolide content. Withanolides are the active compounds responsible for cortisol reduction, sleep improvement, and anxiety relief. Quality ashwagandha contains at least 5% withanolides, with many studies using standardised extracts containing 10-15% withanolides. A product with no withanolide standardisation is likely to be weak or ineffective.
The root is what works. Ashwagandha leaf extracts are sometimes used in supplements because they are cheaper, but the research showing benefit uses root extract specifically. If your ashwagandha does not specify root extract or withanolide standardisation, upgrade to a better product.
Timing
Timing matters more than most people realise. Ashwagandha is most effective when taken consistently at the same time every day. The most effective time depends on your goal. For sleep, take ashwagandha 30-60 minutes before bed with warm milk or water. The fat in milk enhances absorption. For cortisol reduction (which is the primary research), take ashwagandha in the evening. This addresses cortisol dysregulation at the point where it typically accumulates — in the second half of the day.
Do not take ashwagandha at random times or skip days. The research showing benefit used consistent daily dosing for 8 weeks. Inconsistency dramatically reduces effectiveness. If you forget doses, you will get minimal benefit.
The Dosing Guide
Who Should Be Careful
Ashwagandha is not for everyone. People who are pregnant or trying to conceive should avoid ashwagandha — there is insufficient safety data and some evidence of uterine activity. People with autoimmune conditions should be cautious — ashwagandha stimulates immune function, which can theoretically aggravate autoimmune dysregulation. People on immunosuppressive medications should check with their practitioner first.
If you have a nightshade sensitivity (related to other autoimmune or inflammatory conditions), be aware that ashwagandha is in the nightshade family. It is typically tolerated even by sensitive people, but some individuals react to it.
What to Expect — Week by Week
The Bottom Line
Ashwagandha works. The research is robust. But it works only when you take it correctly: at least 300-600mg of a standardised extract, consistently at the same time every day, for at least 8 weeks. Anything less and you will get minimal benefit. Anything inconsistent and you will be wasting your money.
The first 2-4 weeks will feel subtle or nothing. This is when most people quit. Do not. The real benefit emerges between weeks 4-8, and compounds thereafter. If you have cortisol dysregulation, chronic stress, or sleep disruption, ashwagandha is worth trying. Just do it right.