Ashwagandha: when to take it, what dose
and how long it's worth taking
Morning or evening? With food or on an empty stomach? 300 or 600 mg? Below is everything about how to take it, plus the part few people mention: what a product containing ashwagandha is and isn't allowed to say on its label in the European Union.
What ashwagandha is
and why the extract matters, not the plant
Ashwagandha (Withania somnifera) is a plant from the nightshade family, with a thick, fleshy root, used for thousands of years in India's Ayurvedic tradition. There it belongs to the rasayana category, the plants meant to be used daily, over long periods, as part of a routine. In Sanskrit the name means roughly “smell of the horse”, because the fresh root really does smell like a stable.
The practical part only starts here, though. When you buy ashwagandha, you are not buying the plant. You are buying a form of it, and the forms are far from equivalent.
Dried, ground root is simple powder. Its withanolide content (the compounds the plant is standardised by) varies from batch to batch and from supplier to supplier. A standardised extract also starts from the root, but it is concentrated and tested so that every gram contains a guaranteed percentage of withanolides. KSM-66 is one such extract, made exclusively from the root, with no leaves, and standardised to a minimum of 5% withanolides. It is also the extract used in most of the published clinical studies on ashwagandha, which is why the doses in the literature refer to it, not to powder.
Simple powder or standardised extract
| Criterion | Root powder | KSM-66 extract |
|---|---|---|
| Withanolides | variable, usually under 1% | minimum 5%, standardised |
| Which part of the plant | usually root, sometimes a mix | root only |
| Reference dose | hard to establish | 300 to 600 mg a day |
| Batch-to-batch predictability | low | high |
In the European Union, ashwagandha has no authorised health claim. This means that no manufacturer, ourselves included, is allowed to say on a label or in an ad that the plant treats, relieves or prevents anything. If you see a product promising concrete results, you are not looking at better information than everyone else's. You are looking at an ad that breaks the regulation. What can honestly be said is what the product contains, how much it contains and how to take it. That is what the rest of this article is about.
When to take it:
morning or evening
It's the question we get asked most often, and the answer disappoints everyone: there is no universally correct time. Ashwagandha is neither a stimulant nor a sleeping aid, so it doesn't behave like coffee, which you avoid in the evening, or like melatonin, which only makes sense before bed.
What really matters, in this order:
- Take it daily. Study protocols run for weeks, not days. A dose taken at the same time every day beats any theory about the perfect time.
- Take it with food. Withanolides are fat-soluble compounds, so a meal that contains a little fat helps. On top of that, some people feel mild digestive discomfort on an empty stomach, which goes away when they move the dose to a meal.
- Choose a time you can actually stick to. The best moment is the one you don't forget. If you're always rushing in the morning, the evening is better. Not the other way round.
Practical comparison
The option used in most clinical protocols and the easiest to turn into a habit, because it attaches to a meal you eat anyway.
The choice for those who want an end-of-day ritual or who have noticed digestive discomfort in the morning. Just as valid, as long as it is consistent.
If you don't know where to start: one serving a day, with breakfast, for eight weeks in a row. If after a week you find that time doesn't work, move it to the evening and stay there. What doesn't make sense is jumping from one time to another.
What dose
and how long it's worth taking
Doses in the clinical literature refer to standardised extract, not powder, and fall in the range of 300 to 600 mg a day. A product that says “ashwagandha 1000 mg” without saying what kind of ashwagandha and what standardisation is not, in fact, giving you any useful information.
| Form | Daily amount | Worth remembering |
|---|---|---|
| Standardised KSM-66 extract | 300 to 600 mg | The range used in published studies. 600 mg is the most common. |
| Other standardised extracts | depends on standardisation | Compare the withanolide percentage, not the milligrams on the front. |
| Root powder | hard to equate | Without a withanolide percentage, it can't be compared with an extract. |
| ROOTFUL gummies | 2 gummies = 600 mg KSM-66 | One serving a day. The dose is printed on the front of the pouch, not in tiny print on the back. |
How long
Study protocols usually last 8 to 12 weeks. Ashwagandha isn't the kind of ingredient you try for three days and draw a conclusion. If you want to find out whether it makes any sense for you, give it two months of taking it daily, at the same time, and only then decide. And if after those two months you notice nothing, stop. There's no point keeping up, out of inertia, a supplement that does nothing for you.
Many people also take breaks of a few weeks every three months. It's not a hard and fast rule and there is no firm consensus on it, but it's a reasonable practice if you want to see how you feel without it.
What to take it with
and what not to
A meal with a little fat. Withanolides are fat-soluble, and yoghurt, eggs or avocado help with absorption.
Magnesium. Many people take both in the evening, as part of the same routine. Which form of magnesium is which.
A fixed schedule. The most underrated factor in this whole article.
Alcohol. There's no point mixing them, especially in the evening.
Prescription sedatives, anxiolytics or sleeping pills. Talk to your doctor before, not after. We have covered separately what has been tested and what has been reported for ashwagandha with antidepressants or anxiolytics.
Thyroid medication and immunosuppressants. Here you really do need your doctor's approval. What the studies show about ashwagandha and the thyroid.
Other products that also contain ashwagandha. They add up without you realising. See the complete schedule.
Safety
and who should ask their doctor first
At usual doses, ashwagandha is generally well tolerated by healthy adults. The most commonly reported complaints are mild and digestive: some stomach discomfort at first or looser stools in the first few days. They usually pass if you move the dose to a meal.
Not recommended during pregnancy or breastfeeding. If you have a thyroid condition, an autoimmune disease or a liver condition, if you take any prescription treatment or are due to have surgery, ask your doctor or pharmacist before you start. Stop taking it and seek medical advice if you experience persistent nausea, abdominal pain, yellowing of the skin or eyes, or dark urine. Food supplements are not medicines and do not replace treatment.
Gummy, capsule
or powder
The difference between formats is not how well they are absorbed, but two much more mundane things: how precisely you know what you are taking and how likely you are to take it every day.
- Powder is the cheapest and the least precise. The taste is earthy and bitter, and measuring with a teaspoon is approximate.
- Capsules give you an exact dose. The drawback is the classic one: some people simply can't swallow capsules and, after two weeks, the box stays in the drawer.
- Gummies solve the “I enjoy taking it” part, which is half the battle when we're talking about something you need to take for two months. All that matters is that the dose is real and clearly visible, not hidden behind a blend.
Comments (1)
I prefer herbal solutions, and ashwagandha seems to be one of the best for stress relief. https://vananherbal.eu/nl/collections/supplementen/products/ashwagandha