What is Withanolides?
Withanolides are the group of naturally occurring compounds in ashwagandha that are considered its main active constituents and are used to gauge an extract's strength. Their concentration is the figure most quality ashwagandha products are standardised to.
Withanolides are the reason ashwagandha is classed as an adaptogen, and their level is what a standardised extract guarantees. A branded extract such as KSM-66 states a defined withanolide content, which is what separates it from a plain root powder of unknown strength. Because they are linked to the herb's effect on cortisol, withanolide content is often used as shorthand for how active a given ashwagandha really is.
Withanolide content is useful to anyone comparing ashwagandha products who wants to look past the dose on the front of the pack. The catch is that a bigger milligram figure of root powder can still deliver fewer withanolides than a smaller dose of a concentrated extract, so the two numbers are not comparable, and very high withanolide extracts are not automatically better if the rest of the plant matters.
Our Ashwagandha Plus uses a standardised extract so the withanolide content is defined rather than left to chance.
Frequently asked questions
How is it different from plain ashwagandha powder?
Plain root powder contains withanolides at an unknown and usually low level, while a withanolide figure tells you the concentrated active content. Two products can both say ashwagandha yet differ widely in withanolides.
Who uses it, or when is it the right choice?
It is the number to check for anyone comparing ashwagandha extracts on real potency rather than headline dose. It matters most when you want a consistent, defined amount of the active.
When is it the WRONG choice?
Comparing withanolide figures is misleading when one product is a raw powder and the other a concentrated extract, since the dose numbers mean different things. Chasing the highest figure can also overlook whether the whole-root profile is what you actually want.